/* roulang page: index */
:root {
  --pitch: #C6FF3F;
  --pitch-light: #DBFF80;
  --ink: #0C1210;
  --panel: #121A16;
  --canvas: #F2F5F0;
  --surface: #ffffff;
  --signal: #FF6A22;
  --mist: #E2E8DF;
  --text: #14201B;
  --muted: #5C6B62;
  --invert: #F3F7F4;
  --radius-card: 16px;
  --radius-btn: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 20, .06), 0 4px 16px rgba(16, 24, 20, .05);
  --shadow-hover: 0 12px 32px rgba(16, 24, 20, .12);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  background: var(--canvas);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  line-height: 1.2;
  font-weight: 800;
}

p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

input {
  font-family: inherit;
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--pitch);
  outline-offset: 3px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.section {
  padding: 96px 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 52px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--muted);
  margin-bottom: 12px;
}

.kicker::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--pitch);
  border-radius: 999px;
}

.section-head.center .kicker::after {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--pitch);
  border-radius: 999px;
}

.section-title {
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.section-desc {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.section-dark {
  background: var(--ink);
  color: var(--invert);
}

.section-dark .section-title {
  color: #fff;
}

.section-dark .section-desc {
  color: rgba(255, 255, 255, .68);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border: 1px solid transparent;
  transition: background .18s ease, transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--pitch);
  color: #0C1410;
}

.btn-primary:hover {
  background: var(--pitch-light);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(198, 255, 63, .2);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-lg {
  height: 56px;
  padding: 0 30px;
  font-size: 16px;
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, .25);
  color: #F3F7F4;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .45);
  transform: translateY(-1px);
}

.btn-invert {
  background: #fff;
  color: var(--ink);
}

.btn-invert:hover {
  background: var(--pitch-light);
  transform: translateY(-1px);
}

/* ===== Site Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 17, 14, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.navbar {
  max-width: 1280px;
  margin: 0 auto;
  height: 72px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-symbol {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--pitch);
  color: #0B110E;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-main {
  color: #fff;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: .01em;
}

.brand-sub {
  color: var(--pitch);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  color: rgba(255, 255, 255, .7);
  font-size: 15px;
  font-weight: 500;
  padding: 20px 0 18px;
  border-bottom: 2px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.nav-links a:hover {
  color: #fff;
}

.nav-links a.active {
  color: var(--pitch);
  border-bottom-color: var(--pitch);
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-box {
  width: 220px;
  height: 40px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .1);
  display: flex;
  align-items: center;
  padding: 0 14px;
  transition: background .18s ease, border-color .18s ease;
}

.search-box:hover,
.search-box:focus-within {
  background: rgba(255, 255, 255, .15);
  border-color: rgba(198, 255, 63, .5);
}

.search-box input {
  width: 100%;
  background: transparent;
  border: 0;
  color: #fff;
  font-size: 14px;
  padding: 0 8px;
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, .45);
}

.search-box svg {
  width: 16px;
  height: 16px;
  color: rgba(255, 255, 255, .5);
  flex-shrink: 0;
}

.nav-login {
  color: rgba(255, 255, 255, .85);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 8px;
  transition: background .18s ease;
}

.nav-login:hover {
  color: #fff;
  background: rgba(255, 255, 255, .08);
}

.btn-nav {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

.nav-toggle {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  color: #fff;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, .08);
  transition: background .18s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, .14);
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

.mobile-menu {
  display: none;
  background: var(--ink);
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding: 16px 0 24px;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu .mobile-nav-list {
  display: grid;
  gap: 2px;
}

.mobile-menu .mobile-nav-list a {
  display: block;
  color: rgba(255, 255, 255, .82);
  font-size: 16px;
  font-weight: 600;
  padding: 13px 24px;
  border-radius: 10px;
}

.mobile-menu .mobile-nav-list a:hover,
.mobile-menu .mobile-nav-list a.active {
  background: rgba(198, 255, 63, .1);
  color: var(--pitch);
}

.mobile-menu .mobile-search {
  margin: 12px 24px 0;
}

.mobile-menu .mobile-search .search-box {
  width: 100%;
  background: rgba(255, 255, 255, .08);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(115deg, rgba(9, 13, 11, .94), rgba(12, 22, 16, .72)), url("/assets/images/backpic/back-1.png") no-repeat center center / cover;
  color: #fff;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  right: -140px;
  top: -120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 255, 63, .2), transparent 60%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: 56px;
  align-items: center;
  min-height: 660px;
  padding-top: 96px;
  padding-bottom: 96px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(198, 255, 63, .1);
  border: 1px solid rgba(198, 255, 63, .22);
  color: var(--pitch);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  border-radius: 999px;
  padding: 8px 14px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 54px;
  line-height: 1.07;
  letter-spacing: -0.02em;
  color: #fff;
  font-weight: 900;
}

.hero h1 .accent {
  color: var(--pitch);
}

.hero-lead {
  font-size: 17px;
  line-height: 1.85;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, .78);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 36px;
  color: rgba(255, 255, 255, .65);
  font-size: 13px;
  font-weight: 600;
}

.hero-badges li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-badges li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pitch);
  box-shadow: 0 0 8px rgba(198, 255, 63, .8);
}

.hero-visual {
  position: relative;
}

.hero-panel {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 24px;
  padding: 24px 22px;
  backdrop-filter: blur(6px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
  position: relative;
}

.hero-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.hero-panel-title {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px rgba(255, 106, 34, .7);
}

.score-line {
  color: rgba(255, 255, 255, .8);
  font-size: 13px;
  font-weight: 600;
}

.mini-score {
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 18px;
  padding: 20px;
}

.mini-score-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255, 255, 255, .55);
  margin-bottom: 10px;
}

.mini-score-num {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  font-feature-settings: "tnum";
}

.mini-score-num span {
  color: var(--pitch);
}

.mini-score-row {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.mini-chip {
  flex: 1;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 12px;
  padding: 12px 10px;
  text-align: center;
}

.mini-chip i {
  display: block;
  font-style: normal;
  font-size: 16px;
  font-weight: 800;
  color: #fff;
}

.mini-chip em {
  display: block;
  font-style: normal;
  font-size: 11px;
  color: rgba(255, 255, 255, .5);
  margin-top: 4px;
}

.hero-float-card {
  position: absolute;
  bottom: -24px;
  right: -12px;
  background: var(--pitch);
  color: #0C1410;
  padding: 14px 18px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 18px 36px rgba(0, 0, 0, .3);
}

/* ===== Trustbar ===== */
.trustbar {
  background: var(--surface);
  border-bottom: 1px solid var(--mist);
}

.trustbar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding: 24px 0;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.trust-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(198, 255, 63, .18);
  color: #1B7620;
  display: grid;
  place-items: center;
}

.trust-icon svg {
  width: 22px;
  height: 22px;
}

.trust-item strong {
  display: block;
  font-size: 15px;
  font-weight: 800;
  color: var(--text);
}

.trust-item span {
  display: block;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

/* ===== Feature section ===== */
.feature-grid {
  display: grid;
  grid-template-columns: 1.4fr .75fr .75fr;
  grid-auto-rows: auto;
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--mist);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: #BEEF51;
  transform: translateY(-2px);
}

.feature-card .feature-body {
  padding: 28px 26px 30px;
}

.feature-icon-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--ink);
  color: var(--pitch);
  display: grid;
  place-items: center;
}

.feature-icon.feature-icon-lime {
  background: rgba(198, 255, 63, .18);
  color: #314B23;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.arrow-chip {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  display: grid;
  place-items: center;
  color: rgba(0, 0, 0, .45);
  font-size: 18px;
  transition: background .18s ease, color .18s ease;
}

.feature-card:hover .arrow-chip {
  background: var(--pitch);
  color: var(--ink);
}

.feature-card h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--ink);
}

.feature-card p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  margin-bottom: 20px;
}

.feature-media {
  position: relative;
  min-height: 260px;
  overflow: hidden;
  background: #dfe8d8;
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform .3s ease;
}

.feature-card:hover .feature-media img {
  transform: scale(1.02);
}

.feature-media .media-tag {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 2;
  background: rgba(9, 14, 11, .84);
  color: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
}

.feature-main-card .feature-media {
  min-height: 320px;
}

.feature-banner {
  grid-column: 1 / -1;
  background: var(--ink);
  border-radius: var(--radius-card);
  display: grid;
  grid-template-columns: 1.4fr .8fr;
  overflow: hidden;
  color: #fff;
  position: relative;
}

.feature-banner .banner-content {
  padding: 40px 44px;
}

.feature-banner .banner-kicker {
  color: var(--pitch);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.feature-banner h3 {
  font-size: 28px;
  margin: 12px 0 12px;
  color: #fff;
}

.feature-banner p {
  color: rgba(255, 255, 255, .66);
  max-width: 560px;
  font-size: 15px;
  line-height: 1.8;
}

.banner-media {
  min-height: 240px;
  background: #111916 no-repeat center / cover;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 18px;
}

.banner-media .banner-img-label {
  background: rgba(0, 0, 0, .55);
  color: #fff;
  border-radius: 10px;
  font-size: 12px;
  padding: 4px 10px;
}

/* ===== Screenshot section ===== */
.screenshot-section {
  background: var(--ink);
  color: #fff;
  overflow: hidden;
  position: relative;
}

.screenshot-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.screenshot-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  position: relative;
  z-index: 2;
  margin-bottom: 44px;
}

.screenshot-head .section-title {
  color: #fff;
}

.slide-arrows {
  display: flex;
  gap: 10px;
}

.slide-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .2);
  color: #fff;
  display: grid;
  place-items: center;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
}

.slide-btn:hover {
  background: var(--pitch);
  border-color: var(--pitch);
  color: var(--ink);
}

.slide-btn svg {
  width: 20px;
  height: 20px;
}

.showcase-track {
  display: flex;
  gap: 28px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 10px 4px 28px;
  scrollbar-width: none;
}

.showcase-track::-webkit-scrollbar {
  display: none;
}

.shot-card {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: 340px;
}

.mock-phone {
  background: #0d120f;
  border: 8px solid #2b342e;
  border-radius: 42px;
  box-shadow: 0 26px 60px rgba(0, 0, 0, .5);
  overflow: hidden;
  padding: 8px;
}

.mock-screen {
  background: #f3f7f4;
  min-height: 540px;
  border-radius: 28px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.mock-statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px 8px;
  font-size: 12px;
  font-weight: 700;
  color: #14201b;
  background: #f3f7f4;
}

.mock-statusbar .mock-signal {
  display: flex;
  gap: 4px;
}

.mock-screen body {
  padding: 0 16px 18px;
}

.mock-hero-line {
  background: var(--ink);
  border-radius: 18px;
  margin: 8px 10px;
  padding: 18px;
  color: #fff;
}

.mock-line {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.mock-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--pitch);
}

.mock-chip-row {
  display: flex;
  gap: 8px;
  margin: 12px 10px;
}

.mock-chip {
  background: #e3eae0;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 11px;
  color: var(--muted);
}

.mock-metric-row {
  display: flex;
  gap: 8px;
  margin: 10px;
}

.mock-metric {
  flex: 1;
  background: #fff;
  border: 1px solid #e2e8df;
  border-radius: 16px;
  padding: 12px;
}

.mock-metric .num {
  font-size: 25px;
  font-weight: 800;
  color: var(--text);
}

.mock-metric .num.green {
  color: #1e7a3a;
}

.mock-metric .lbl {
  font-size: 10px;
  color: var(--muted);
}

.mock-list {
  margin: 10px;
  display: grid;
  gap: 8px;
}

.mock-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--mist);
  border-radius: 14px;
  font-size: 12px;
  color: var(--text);
}

.mock-list-item .tag {
  background: var(--pitch);
  border-radius: 999px;
  padding: 3px 10px;
  color: #0c1410;
  font-weight: 800;
  font-size: 11px;
}

.mock-card-title {
  color: var(--ink);
  font-weight: 800;
  font-size: 15px;
  padding: 4px 10px;
}

.mock-live-card {
  background: var(--signal);
  color: #fff;
  border-radius: 16px;
  margin: 10px;
  padding: 16px;
}

.shot-caption {
  text-align: center;
  margin-top: 16px;
  color: rgba(255, 255, 255, .65);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .02em;
}

.shot-indicators {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .3);
  transition: background .2s ease, width .2s ease;
}

.dot.active {
  background: var(--pitch);
  width: 22px;
}

/* ===== System Requirements ===== */
.req-section {
  background: var(--canvas);
}

.req-tabbar {
  display: flex;
  gap: 8px;
  background: var(--ink);
  border-radius: 999px;
  padding: 6px;
  width: fit-content;
  margin-bottom: 28px;
}

.req-tab {
  height: 42px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  color: rgba(255, 255, 255, .6);
  transition: background .18s ease, color .18s ease;
}

.req-tab:hover {
  color: #fff;
}

.req-tab.active {
  background: var(--pitch);
  color: var(--ink);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeUp .25s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.spec-item {
  background: var(--surface);
  border: 1px solid var(--mist);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: border-color .18s ease, transform .18s ease;
}

.spec-item:hover {
  border-color: #B6E74F;
  transform: translateY(-1px);
}

.spec-icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(198, 255, 63, .16);
  color: #4A6A38;
  display: grid;
  place-items: center;
}

.spec-icon svg {
  width: 21px;
  height: 21px;
}

.spec-text .label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
  display: block;
}

.spec-text .value {
  font-size: 15px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.5;
}

.req-cta-row {
  margin-top: 36px;
  display: flex;
  justify-content: center;
}

/* ===== Reviews ===== */
.review-section {
  background: var(--surface);
}

.review-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 44px;
}

.review-ranking {
  background: var(--ink);
  border-radius: 22px;
  color: #fff;
  padding: 32px 28px;
  position: sticky;
  top: 100px;
  height: fit-content;
}

.review-score {
  font-size: 58px;
  font-weight: 900;
  font-feature-settings: "tnum";
  letter-spacing: -0.04em;
  color: var(--pitch);
  line-height: 1;
}

.review-stars {
  display: flex;
  gap: 4px;
  margin: 12px 0 8px;
}

.review-stars svg {
  width: 20px;
  height: 20px;
  fill: var(--signal);
  color: var(--signal);
}

.review-ranking .total-label {
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
}

.store-line {
  display: flex;
  gap: 10px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .1);
}

.store-chip {
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 10px;
  padding: 6px 12px;
  color: rgba(255, 255, 255, .8);
  font-size: 13px;
  font-weight: 700;
}

.review-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.review-card {
  background: var(--canvas);
  border: 1px solid var(--mist);
  border-radius: 16px;
  padding: 22px 24px;
  transition: box-shadow .18s ease, transform .18s ease;
}

.review-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #ccd9c6;
  color: #4a5c48;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 15px;
}

.review-user .username {
  font-weight: 800;
  font-size: 15px;
  color: var(--text);
}

.review-user .time {
  font-size: 12px;
  color: var(--muted);
}

.review-stars small {
  font-weight: 800;
  color: var(--ink);
}

.review-card .review-text {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: #394940;
}

/* ===== News section ===== */
.news-section {
  background: var(--canvas);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.news-card {
  background: var(--surface);
  border: 1px solid var(--mist);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: #BADF62;
  transform: translateY(-3px);
}

.news-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  display: block;
  overflow: hidden;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.03);
}

.news-cat {
  position: absolute;
  z-index: 2;
  left: 12px;
  top: 12px;
  background: rgba(9, 14, 11, .8);
  color: var(--pitch);
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 5px 10px;
}

.news-body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-body time {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.news-body h3 {
  font-size: 18px;
  line-height: 1.45;
}

.news-body h3 a {
  color: var(--text);
  transition: color .15s ease;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card:hover .news-body h3 a {
  color: #243A2B;
}

.news-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin-top: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-link {
  margin-top: auto;
  padding-top: 16px;
  font-size: 14px;
  font-weight: 700;
  color: #2E7D32;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-link::after {
  content: "→";
  transition: transform .18s ease;
}

.news-card:hover .news-link::after {
  transform: translateX(4px);
}

.news-empty {
  grid-column: 1 / -1;
  background: var(--surface);
  border: 1px dashed var(--mist);
  border-radius: 16px;
  padding: 52px;
  text-align: center;
  color: var(--muted);
  font-size: 16px;
}

/* ===== FAQ ===== */
.faq-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.faq-title-side .section-title {
  font-size: 38px;
}

.faq-title-side p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.faq-list {
  border-top: 1px solid var(--mist);
}

.faq-item {
  border-bottom: 1px solid var(--mist);
}

.faq-question {
  width: 100%;
  min-height: 64px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-align: left;
  gap: 20px;
}

.faq-question .plus {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #ebf0e6;
  display: grid;
  place-items: center;
  color: #3f5144;
  font-size: 18px;
  transition: background .18s ease, transform .18s ease, color .18s ease;
  flex-shrink: 0;
}

.faq-item.open .plus {
  background: var(--pitch);
  color: var(--ink);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .22s ease;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  padding: 0 14px;
}

.faq-item.open .faq-answer {
  max-height: 220px;
  padding: 0 14px 24px;
}

/* ===== Final CTA ===== */
.final-cta {
  background: linear-gradient(120deg, #0c1410, #141e18), url("/assets/images/coverpic/cover-6.png") no-repeat center / cover;
  color: #fff;
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}

.final-cta::after {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  left: -120px;
  bottom: -160px;
  border-radius: 50%;
  background: rgba(198, 255, 63, .18);
  filter: blur(20px);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: center;
  gap: 60px;
}

.cta-inner h2 {
  font-size: 42px;
  color: #fff;
  line-height: 1.16;
}

.cta-inner h2 span {
  color: var(--pitch);
}

.cta-copy {
  color: rgba(255, 255, 255, .7);
  font-size: 16px;
  margin: 20px 0 30px;
  line-height: 1.8;
}

.qr-wrap {
  display: flex;
  justify-content: flex-end;
}

.qr-card {
  background: #fff;
  border-radius: 18px;
  padding: 20px 20px 14px;
  width: 180px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .35);
}

.qr-fake {
  width: 128px;
  height: 128px;
  margin: 0 auto;
  background: linear-gradient(90deg, #0c1410 25%, transparent 25%) 0 0 / 18px 18px, linear-gradient(#0c1410 25%, transparent 25%) 0 0 / 18px 18px;
  border: 10px solid var(--ink);
  border-radius: 8px;
}

.qr-wrap-bottom {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  margin-top: 8px;
}

/* ===== Site Footer ===== */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, .75);
}

.footer-top {
  padding: 72px 0 48px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.1fr 1fr;
  gap: 44px;
}

.footer-brand .brand-text {
  margin-top: 2px;
}

.footer-brand .brand-main {
  color: #fff;
}

.footer-description {
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
  line-height: 1.8;
  max-width: 300px;
}

.footer-domain {
  margin-top: 16px;
  display: inline-flex;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 8px;
  font-size: 13px;
  color: rgba(198, 255, 63, .85);
  font-weight: 600;
}

.footer-head {
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: .04em;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, .66);
  transition: color .15s ease, padding-left .15s ease;
}

.footer-links a:hover {
  color: var(--pitch);
  padding-left: 4px;
}

.footer-note {
  font-size: 12px;
  color: rgba(255, 255, 255, .4);
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }

  .navbar {
    padding: 0 24px;
  }

  .nav-links {
    gap: 18px;
  }

  .search-box {
    width: 160px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 60px;
    min-height: auto;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .feature-main-card {
    grid-column: 1 / -1;
  }

  .feature-banner {
    grid-template-columns: 1fr;
  }

  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .review-layout {
    grid-template-columns: 280px 1fr;
    gap: 30px;
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .final-cta .cta-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .qr-wrap {
    justify-content: flex-start;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 32px;
  }

  .container,
  .navbar {
    padding-left: 20px;
    padding-right: 20px;
  }

  .nav-links,
  .nav-tools .search-box,
  .nav-login,
  .btn-nav {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .mobile-menu {
    display: none;
  }

  .mobile-menu.open {
    display: block;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions {
    gap: 12px;
  }

  .hero-badges {
    gap: 12px 14px;
  }

  .trustbar-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-main-card {
    grid-column: auto;
  }

  .feature-banner .banner-content {
    padding: 30px;
  }

  .feature-banner h3 {
    font-size: 24px;
  }

  .screenshot-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .spec-grid {
    grid-template-columns: 1fr;
  }

  .review-layout {
    grid-template-columns: 1fr;
  }

  .review-ranking {
    position: static;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .final-cta {
    padding: 72px 0;
  }

  .cta-inner h2 {
    font-size: 32px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (min-width: 769px) {
  .nav-toggle {
    display: none;
  }

  .mobile-menu {
    display: none !important;
  }
}

@media (max-width: 520px) {
  .section-title {
    font-size: 28px;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .navbar {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero h1 {
    font-size: 32px;
    line-height: 1.2;
  }

  .hero-lead {
    font-size: 15px;
  }

  .btn-lg,
  .btn {
    height: 48px;
    padding: 0 18px;
    font-size: 14px;
  }

  .trustbar-grid {
    grid-template-columns: 1fr;
  }

  .trust-item {
    padding: 8px 0;
  }

  .feature-banner h3 {
    font-size: 21px;
  }

  .feature-card .feature-body {
    padding: 22px 18px 24px;
  }

  .shot-card {
    width: 290px;
  }

  .mock-screen {
    min-height: 460px;
  }

  .review-card {
    padding: 18px;
  }

  .news-body {
    padding: 18px;
  }

  .final-cta .cta-inner h2 {
    font-size: 27px;
  }

  .qr-wrap {
    justify-content: center;
  }

  .footer-top {
    padding-top: 56px;
  }
}

/* roulang page: article */
:root {
        --color-pitch: #C6FF3F;
        --color-pitch-light: #DBFF80;
        --color-ink: #0C1210;
        --color-panel: #121A16;
        --color-canvas: #F4F7F2;
        --color-surface: #FFFFFF;
        --color-signal: #FF6A22;
        --color-mist: #E2E8DF;
        --color-text: #14201B;
        --color-text-iv: #F3F7F4;
        --shadow-card: 0 1px 2px rgba(16, 24, 20, .06), 0 4px 16px rgba(16, 24, 20, .05);
        --shadow-card-hover: 0 2px 4px rgba(16, 24, 20, .08), 0 12px 32px rgba(16, 24, 20, .12);
    }
    * {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        margin: 0;
        background: var(--color-canvas);
        color: var(--color-text);
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
        font-size: 16px;
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: inherit;
        text-decoration: none;
    }
    img {
        max-width: 100%;
        display: block;
    }
    button,
    input {
        font-family: inherit;
        font-size: inherit;
    }
    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding-left: 32px;
        padding-right: 32px;
    }
    .text-muted {
        color: rgba(243, 247, 244, .62);
    }

    /* 头部导航 */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        height: 72px;
        background: rgba(12, 18, 16, .92);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(255, 255, 255, .08);
    }
    .header-row {
        height: 72px;
        display: grid;
        grid-template-columns: auto minmax(0, 1fr) auto;
        align-items: center;
        gap: 28px;
    }
    .brand {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .brand-symbol {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--color-pitch);
        color: var(--color-ink);
        font-size: 22px;
        font-weight: 900;
        font-style: italic;
        line-height: 1;
        transform: skewX(-6deg);
    }
    .brand-text {
        display: flex;
        flex-direction: column;
        line-height: 1.05;
    }
    .brand-main {
        color: #F4F8F5;
        font-size: 21px;
        font-weight: 900;
        letter-spacing: .02em;
    }
    .brand-sub {
        color: var(--color-pitch);
        font-size: 11px;
        font-weight: 700;
        letter-spacing: .15em;
        margin-top: 3px;
    }
    .nav-links {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }
    .nav-links a {
        display: inline-flex;
        align-items: center;
        height: 40px;
        padding: 0 18px;
        border-radius: 999px;
        color: rgba(243, 247, 244, .8);
        font-size: 15px;
        font-weight: 500;
        white-space: nowrap;
        transition: background .15s ease, color .15s ease;
    }
    .nav-links a:hover {
        background: rgba(255, 255, 255, .08);
        color: #fff;
    }
    .nav-links a.active {
        background: rgba(198, 255, 63, .12);
        color: var(--color-pitch);
        font-weight: 700;
    }
    .header-actions {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 12px;
    }
    .header-search {
        width: 220px;
        height: 40px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, .1);
        background: rgba(255, 255, 255, .08);
        display: flex;
        align-items: center;
        padding: 0 14px;
        color: rgba(243, 247, 244, .9);
    }
    .header-search input {
        width: 100%;
        background: transparent;
        border: 0;
        outline: none;
        color: #F3F7F4;
        font-size: 14px;
    }
    .header-search input::placeholder {
        color: rgba(243, 247, 244, .44);
    }
    .header-login {
        color: rgba(243, 247, 244, .82);
        font-size: 15px;
        font-weight: 600;
        white-space: nowrap;
        transition: color .15s;
    }
    .header-login:hover {
        color: #fff;
    }
    .btn-download {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 42px;
        padding: 0 20px;
        border-radius: 10px;
        background: var(--color-pitch);
        color: var(--color-ink);
        font-size: 15px;
        font-weight: 800;
        border: 0;
        cursor: pointer;
        white-space: nowrap;
        transition: transform .12s ease, background .16s ease;
    }
    .btn-download:hover {
        background: var(--color-pitch-light);
        transform: translateY(-1px);
    }
    .btn-download:active {
        transform: translateY(1px);
    }
    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border: 0;
        background: rgba(255, 255, 255, .08);
        border-radius: 10px;
        align-items: center;
        justify-content: center;
        cursor: pointer;
    }
    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
        content: "";
        display: block;
        width: 18px;
        height: 2px;
        background: #F3F7F4;
        border-radius: 2px;
        position: relative;
        transition: transform .2s ease;
    }
    .nav-toggle span::before {
        position: absolute;
        top: -6px;
    }
    .nav-toggle span::after {
        position: absolute;
        top: 6px;
    }
    .mobile-menu {
        display: none;
        background: var(--color-ink);
        border-top: 1px solid rgba(255, 255, 255, .06);
        padding: 18px 24px 24px;
    }
    .mobile-menu.open {
        display: block;
    }
    .mobile-menu .mobile-search {
        display: flex;
        align-items: center;
        width: 100%;
        height: 46px;
        border-radius: 12px;
        border: 1px solid rgba(255, 255, 255, .12);
        background: rgba(255, 255, 255, .06);
        padding: 0 14px;
        margin-bottom: 14px;
    }
    .mobile-menu .mobile-search input {
        width: 100%;
        border: 0;
        outline: none;
        background: transparent;
        color: #F3F7F4;
        font-size: 15px;
    }
    .mobile-menu .mobile-search input::placeholder {
        color: rgba(243, 247, 244, .44);
    }
    .mobile-nav {
        display: grid;
        gap: 8px;
        margin-bottom: 18px;
    }
    .mobile-nav a {
        display: flex;
        align-items: center;
        height: 46px;
        padding: 0 14px;
        border-radius: 12px;
        background: rgba(255, 255, 255, .05);
        color: rgba(243, 247, 244, .86);
        font-weight: 600;
    }
    .mobile-nav a.active {
        background: rgba(198, 255, 63, .12);
        color: var(--color-pitch);
    }

    /* 面包屑 */
    .post-breadcrumb {
        padding-top: 28px;
    }
    .post-breadcrumb .inner {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
        font-size: 14px;
        color: #5F6B64;
    }
    .post-breadcrumb a {
        transition: color .15s;
    }
    .post-breadcrumb a:hover {
        color: #1A9E4B;
    }
    .crumb-sep {
        color: #B1BBB2;
    }

    /* 文章主体 */
    .article-section {
        padding: 32px 0 96px;
    }
    .article-wrap {
        max-width: 780px;
        margin: 0 auto;
    }
    .post-head {
        margin: 28px 0 32px;
    }
    .meta-chip {
        display: inline-flex;
        align-items: center;
        height: 28px;
        padding: 0 14px;
        border-radius: 999px;
        background: rgba(198, 255, 63, .18);
        color: #173F2A;
        font-size: 13px;
        font-weight: 700;
    }
    .post-head h1 {
        font-size: 46px;
        line-height: 1.18;
        font-weight: 900;
        letter-spacing: -0.01em;
        margin: 18px 0 20px;
        color: #102017;
    }
    .post-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px 24px;
        color: #748079;
        font-size: 14px;
        border-bottom: 1px solid #DEE6DA;
        padding-bottom: 26px;
        margin-bottom: 8px;
    }
    .post-meta .mini-author {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: #3F4D43;
        font-weight: 600;
    }
    .mini-author .avatar {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--color-pitch) 0%, #6FAE6A 100%);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 13px;
        font-weight: 900;
        color: #0C1210;
    }

    /* 正文 */
    .article-content {
        background: var(--color-surface);
        border: 1px solid #E4EAE1;
        border-radius: 20px;
        padding: 48px 52px;
        box-shadow: var(--shadow-card);
        margin-top: 8px;
    }
    .article-content > *:first-child {
        margin-top: 0;
    }
    .article-content h2,
    .article-content h3,
    .article-content h4 {
        color: #102017;
        font-weight: 800;
        line-height: 1.4;
        margin-top: 2.1em;
    }
    .article-content h2 {
        font-size: 28px;
    }
    .article-content h3 {
        font-size: 21px;
    }
    .article-content h4 {
        font-size: 18px;
    }
    .article-content p {
        margin: 18px 0;
        font-size: 16px;
        line-height: 2;
        color: #253129;
    }
    .article-content ul,
    .article-content ol {
        margin: 18px 0;
        padding-left: 1.4em;
        color: #253129;
    }
    .article-content li {
        margin: 8px 0;
        line-height: 1.9;
    }
    .article-content blockquote {
        margin: 28px 0;
        padding: 18px 24px;
        background: #F1F7EC;
        border-left: 4px solid var(--color-pitch);
        border-radius: 0 14px 14px 0;
        color: #38483D;
        font-size: 15.5px;
    }
    .article-content blockquote p {
        margin: 6px 0;
        color: #38483D;
    }
    .article-content img {
        border-radius: 16px;
        margin: 28px 0;
    }
    .article-content table {
        width: 100%;
        border-collapse: collapse;
        margin: 24px 0;
        font-size: 15px;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    .article-content table th,
    .article-content table td {
        border: 1px solid #DCE5D9;
        padding: 10px 14px;
        text-align: left;
        white-space: nowrap;
        background: #fff;
    }
    .article-content table th {
        background: #F3F8EF;
        font-weight: 800;
    }
    .article-content a {
        color: #0F9D58;
        text-decoration: underline;
        text-underline-offset: 3px;
    }
    .article-content a:hover {
        color: #0B7A43;
    }

    /* 轻量下载引导 */
    .article-callout {
        border-radius: 16px;
        background: var(--color-ink);
        color: #F3F7F4;
        padding: 28px 32px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        margin: 44px 0 0;
        border: 1px solid rgba(198, 255, 63, .14);
    }
    .article-callout-title {
        font-size: 19px;
        font-weight: 800;
        color: #fff;
        margin: 0 0 4px;
    }
    .article-callout-desc {
        margin: 0;
        color: rgba(243, 247, 244, .65);
        font-size: 14px;
        line-height: 1.7;
    }
    .article-callout .btn-download {
        flex-shrink: 0;
        width: 152px;
    }

    /* 继续浏览 */
    .related-section {
        margin-top: 52px;
    }
    .related-section h2 {
        font-size: 24px;
        font-weight: 800;
        margin: 0 0 6px;
    }
    .related-sub {
        color: #718077;
        font-size: 14px;
        margin: 0 0 24px;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 20px;
    }
    .related-card {
        background: #fff;
        border: 1px solid #E4EAE1;
        border-radius: 16px;
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
        display: block;
    }
    .related-card:hover {
        box-shadow: var(--shadow-card-hover);
        border-color: var(--color-pitch);
        transform: translateY(-2px);
    }
    .related-card .thumb {
        aspect-ratio: 16 / 10;
        background: #EAF0E6;
        overflow: hidden;
    }
    .related-card .thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .3s ease;
    }
    .related-card:hover .thumb img {
        transform: scale(1.03);
    }
    .related-card .card-body {
        padding: 16px 18px 18px;
    }
    .related-card .card-tag {
        display: inline-flex;
        font-size: 12px;
        font-weight: 700;
        padding: 3px 10px;
        border-radius: 999px;
        background: #EAF5E3;
        color: #20704A;
        margin-bottom: 8px;
    }
    .related-card h3 {
        font-size: 17px;
        line-height: 1.5;
        font-weight: 800;
        color: #17241B;
        margin: 0 0 8px;
    }

    /* 内容未找到 */
    .not-found-box {
        max-width: 760px;
        margin: 0 auto;
        text-align: center;
        background: #fff;
        border: 1px solid #E4EAE1;
        border-radius: 20px;
        padding: 90px 32px;
        box-shadow: var(--shadow-card);
    }
    .not-found-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 68px;
        height: 68px;
        border-radius: 22px;
        background: #F0F7EA;
        font-size: 28px;
        font-weight: 900;
        color: #1B4430;
    }
    .not-found-box h1 {
        font-size: 30px;
        font-weight: 900;
        color: #17241B;
        margin: 24px 0 10px;
    }
    .not-found-box p {
        color: #7A857D;
        font-size: 15px;
        margin-bottom: 28px;
    }

    /* 页脚 */
    .site-footer {
        background: var(--color-ink);
        color: rgba(243, 247, 244, .8);
        margin-top: 0;
        padding: 72px 0 30px;
    }
    .footer-top {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.3fr;
        gap: 40px;
        padding-bottom: 52px;
        border-bottom: 1px solid rgba(255, 255, 255, .08);
    }
    .footer-brand .brand-main {
        color: #FFFFFF;
    }
    .footer-description {
        font-size: 14px;
        line-height: 1.9;
        color: rgba(243, 247, 244, .6);
        max-width: 360px;
    }
    .footer-domain {
        color: var(--color-pitch);
        font-size: 14px;
        font-weight: 700;
        letter-spacing: .02em;
    }
    .footer-head {
        font-size: 15px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 18px;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
        display: grid;
        gap: 12px;
    }
    .footer-links a {
        color: rgba(243, 247, 244, .62);
        font-size: 14px;
        transition: color .15s ease;
    }
    .footer-links a:hover {
        color: var(--color-pitch);
    }
    .footer-note {
        font-size: 13.5px;
        line-height: 1.9;
        color: rgba(243, 247, 244, .5);
        margin: 0;
    }
    .footer-bottom {
        padding-top: 24px;
        font-size: 14px;
        color: rgba(243, 247, 244, .46);
    }

    @media (max-width: 1023px) {
        .header-row {
            grid-template-columns: 1fr auto;
            gap: 12px;
        }
        .nav-links,
        .header-search,
        .header-login {
            display: none;
        }
        .nav-toggle {
            display: inline-flex;
        }
        .footer-top {
            grid-template-columns: 1fr 1fr;
        }
        .related-grid {
            grid-template-columns: repeat(2, minmax(0, 1fr));
        }
        .post-head h1 {
            font-size: 36px;
        }
        .article-content {
            padding: 36px 34px;
        }
    }
    @media (max-width: 640px) {
        .container {
            padding-left: 20px;
            padding-right: 20px;
        }
        .brand-main {
            font-size: 19px;
        }
        .post-breadcrumb {
            padding-top: 18px;
        }
        .post-head h1 {
            font-size: 28px;
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .post-meta {
            gap: 8px 14px;
        }
        .article-section {
            padding: 20px 0 64px;
        }
        .article-content {
            padding: 28px 20px;
            border-radius: 14px;
        }
        .article-content h2 {
            font-size: 23px;
        }
        .article-content p {
            line-height: 1.9;
            font-size: 15px;
        }
        .article-callout {
            padding: 24px 20px;
            flex-direction: column;
        }
        .article-callout .btn-download {
            width: 100%;
        }
        .related-grid {
            grid-template-columns: 1fr;
            gap: 14px;
        }
        .related-section h2 {
            font-size: 21px;
        }
        .footer-top {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .site-footer {
            padding-top: 52px;
        }
    }
    @media (min-width: 641px) and (max-width: 767px) {
        .related-grid {
            grid-template-columns: 1fr;
        }
    }

/* roulang page: category1 */
:root{
  --pitch:#C6FF3F;
  --pitch-light:#DBFF80;
  --ink:#0B1210;
  --panel:#121B17;
  --canvas:#F2F5F0;
  --surface:#FFFFFF;
  --signal:#FF6A22;
  --mist:#DCE6DC;
  --text:#17201D;
  --muted:#6C7A73;
  --radius-lg:20px;
  --radius-md:14px;
  --shadow-soft:0 1px 2px rgba(16,24,20,.06),0 6px 20px rgba(16,24,20,.06);
  --shadow-hover:0 12px 32px rgba(16,24,20,.12);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--canvas);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:all .18s ease}
img{display:block;max-width:100%;border:0}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
input::placeholder{color:#9AA5A0}
.container{max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px}
section{scroll-margin-top:100px}
:focus-visible{outline:3px solid var(--pitch);outline-offset:2px;border-radius:6px}

.tag{
  display:inline-flex;align-items:center;gap:4px;border-radius:999px;
  padding:5px 12px;font-size:12px;font-weight:700;line-height:1.2;
  letter-spacing:.02em;white-space:nowrap;
}
.tag-pitch{background:var(--pitch);color:var(--ink)}
.tag-signal{background:#FFF0E6;color:#7A2D00;border:1px solid #FFD5BC}
.tag-soft{background:#E9F4E3;color:#234B18;border:1px solid #D1E6C7}

.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.12em;
  color:var(--signal);text-transform:uppercase;margin-bottom:14px;
}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  height:72px;
  background:rgba(10,17,14,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.brand-symbol{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--pitch);color:var(--ink);font-size:24px;font-weight:900;
}
.brand-text{display:flex;flex-direction:column;line-height:1.05;text-align:left}
.brand-main{font-size:19px;font-weight:900;letter-spacing:-.01em;color:#fff}
.brand-sub{font-size:10px;font-weight:700;letter-spacing:.2em;color:var(--pitch);margin-top:2px}

.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  color:rgba(255,255,255,.76);font-size:14px;font-weight:600;
  padding:11px 13px;border-radius:12px;position:relative;white-space:nowrap;
}
.nav-links a:hover{color:var(--pitch);background:rgba(198,255,63,.07)}
.nav-links a.active{color:var(--pitch)}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;
  border-radius:999px;background:var(--pitch);
}
.header-actions{display:flex;align-items:center;gap:10px}
.search-form{
  display:flex;align-items:center;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.1);border-radius:999px;
  padding:0 6px 0 0;height:42px;width:220px;
}
.search-form input{
  background:transparent;border:0;outline:0;color:#fff;
  padding:0 16px;flex:1;min-width:0;font-size:14px;
}
.search-form input::placeholder{color:rgba(255,255,255,.46)}
.search-form button{
  width:34px;height:34px;border-radius:999px;background:var(--pitch);color:var(--ink);
  display:grid;place-items:center;border:0;cursor:pointer;flex-shrink:0;transition:all .18s;
}
.search-form button:hover{background:var(--pitch-light)}
.header-login{
  color:rgba(255,255,255,.7);font-size:14px;font-weight:600;padding:8px 12px;border-radius:10px;
}
.header-login:hover{color:#fff;background:rgba(255,255,255,.08)}
.btn-download{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--pitch);color:var(--ink);font-size:14px;font-weight:800;
  height:42px;padding:0 20px;border-radius:12px;transition:all .18s ease;
  border:0;cursor:pointer;white-space:nowrap;
}
.btn-download:hover{background:var(--pitch-light);transform:translateY(-1px)}
.btn-download:active{transform:translateY(1px)}
.menu-toggle{
  display:none;background:transparent;border:0;padding:10px 6px;cursor:pointer;
  flex-direction:column;gap:4px;border-radius:8px;
}
.menu-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px}

.mobile-panel{
  display:none;background:var(--ink);border-top:1px solid rgba(255,255,255,.08);
  padding:16px 20px 24px;flex-direction:column;gap:14px;
}
.mobile-panel .nav-links{flex-direction:column;align-items:stretch;gap:4px}
.mobile-panel .nav-links a{padding:13px 10px}
.mobile-panel .nav-links a.active::after{display:none}
.mobile-panel .search-form{width:100%}
.site-header.menu-open .mobile-panel{display:flex}

.btn-primary,.btn-ghost,.btn-surface{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-size:15px;font-weight:800;border-radius:13px;height:52px;
  padding:0 26px;cursor:pointer;border:1px solid transparent;transition:all .18s ease;
}
.btn-primary{background:var(--pitch);color:var(--ink)}
.btn-primary:hover{background:var(--pitch-light);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.25);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5)}
.btn-surface{background:#fff;color:var(--ink);border-color:#E0E8DD}
.btn-surface:hover{border-color:var(--pitch);box-shadow:var(--shadow-hover)}

.hero{
  background:var(--ink);color:#fff;position:relative;overflow:hidden;
  padding:150px 0 92px;
}
.hero::before{
  content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.30;
}
.hero::after{
  content:"";position:absolute;right:-100px;bottom:-120px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(198,255,63,.18),transparent 65%);
}
.hero-inner{position:relative;z-index:2;max-width:960px}
.breadcrumb{
  display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.5);
  font-size:13px;margin-bottom:32px;
}
.breadcrumb a{color:rgba(255,255,255,.6)}
.breadcrumb a:hover{color:var(--pitch)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff;font-weight:600}
.hero-kicker{
  display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:700;
  color:var(--pitch);background:rgba(198,255,63,.08);padding:8px 15px;
  border:1px solid rgba(198,255,63,.22);border-radius:999px;margin-bottom:24px;
}
.hero-kicker::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--pitch);
  box-shadow:0 0 0 3px rgba(198,255,63,.2);
}
.hero h1{
  font-size:58px;line-height:1.06;font-weight:900;letter-spacing:-.02em;
  color:#fff;max-width:900px;
}
.hero h1 .accent{color:var(--pitch)}
.hero-lead{
  margin-top:24px;font-size:18px;max-width:780px;font-weight:400;line-height:1.8;
  color:rgba(255,255,255,.78);
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:18px 34px;margin-top:36px;
  align-items:center;
}
.hero-meta .meta-item{display:flex;align-items:center;gap:10px;font-size:14px;color:#fff}
.hero-meta .meta-item strong{
  font-size:22px;font-weight:900;color:var(--pitch);letter-spacing:0;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--mist);border-bottom:1px solid var(--mist)}
.section-soft{background:#EDF2EA}
.section-heading{max-width:760px;margin-bottom:44px}
.section-heading h2{
  font-size:38px;line-height:1.2;font-weight:900;letter-spacing:-.02em;
  color:var(--text);margin-bottom:14px;
}
.section-heading p.sub{
  color:var(--muted);font-size:16px;max-width:680px;margin-top:6px;
}
.section-heading.center{margin-left:auto;margin-right:auto;text-align:center}
.section-heading.center p.sub{margin-left:auto;margin-right:auto}

.release-panel{
  background:#fff;border:1px solid var(--mist);border-radius:24px;
  box-shadow:var(--shadow-soft);padding:12px 32px 12px;
}
.tl{
  border-left:2px solid #E1EAE0;list-style:none; padding-left:0;
}
.timeline-item{
  position:relative;display:grid;grid-template-columns:200px 1fr;gap:20px;
  padding:32px 0;
}
.timeline-item:not(:last-child){border-bottom:1px dashed #DCE5DB}
.tl-aside{
  border-left:2px solid transparent;padding-left:26px;position:relative;
}
.timeline-item::before{
  content:"";position:absolute;left:-7px;top:44px;width:12px;height:12px;
  border-radius:4px;background:var(--pitch);border:2px solid #fff;
  box-shadow:0 0 0 3px rgba(198,255,63,.4);z-index:2;
}
.tl-date{display:block;font-size:13px;font-weight:700;color:var(--muted);margin-bottom:8px}
.version-chip{
  display:inline-flex;align-items:center;background:var(--ink);color:#fff;
  font-size:13px;font-weight:800;padding:6px 12px;border-radius:8px;
  letter-spacing:.02em;
}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.tl-content h3{font-size:24px;line-height:1.3;font-weight:800;color:var(--text)}
.tl-content>p{color:var(--muted);margin-top:8px;max-width:720px}
.tl-change-list{
  margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;
  list-style:none;
}
.tl-change-list li{
  position:relative;padding-left:24px;font-size:14px;color:#39463F;
}
.tl-change-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;
  background:var(--signal);border-radius:2px;transform:rotate(45deg);
}
.tl-note{
  margin-top:18px;background:#F3F8F1;border-left:3px solid var(--pitch);
  border-radius:0 12px 12px 0;padding:13px 18px;color:#4C5C54;font-size:14px;
}
.strip-note{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  background:var(--ink);border-radius:18px;padding:22px 28px;margin-top:36px;
  color:#fff;
}
.strip-note p{flex:1;min-width:240px;font-size:15px;color:rgba(255,255,255,.76)}
.strip-note .link{
  color:var(--pitch);font-weight:800;font-size:14px;white-space:nowrap;
}
.strip-note .link:hover{color:var(--pitch-light)}

.feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
.feature-card{
  background:#fff;border:1px solid var(--mist);border-radius:22px;
  overflow:hidden;box-shadow:var(--shadow-soft);transition:transform .2s ease,box-shadow .2s ease,border-color .2s;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#BBD1B5}
.feature-main .feature-media{position:relative;aspect-ratio:16/9;background:#EAF0E7}
.feature-main .feature-media img{width:100%;height:100%;object-fit:cover}
.media-caption{
  position:absolute;left:18px;bottom:16px;color:#fff;background:rgba(6,12,9,.72);
  backdrop-filter:blur(6px);border-radius:999px;padding:7px 14px;font-size:12px;font-weight:700;
}
.feature-body{padding:28px}
.feature-body h3{font-size:23px;font-weight:800;line-height:1.3;margin-top:10px}
.feature-body .desc{color:var(--muted);margin-top:8px;font-size:14px;max-width:560px}
.feature-list{list-style:none;margin-top:20px;display:grid;gap:10px}
.feature-list li{
  position:relative;padding-left:26px;font-size:14px;color:#39463F;font-weight:500;
}
.feature-list li::before{
  content:"";position:absolute;left:2px;top:7px;width:12px;height:8px;
  border-left:3px solid var(--pitch);border-bottom:3px solid var(--pitch);
  transform:rotate(-45deg);
}
.feature-side{display:grid;grid-template-columns:1fr;gap:22px}
.feature-card.mini{padding:0}
.feature-card.mini .feature-inner{display:flex;gap:22px;align-items:flex-start;padding:28px;height:100%}
.feature-icon{
  width:56px;height:56px;border-radius:16px;background:var(--pitch);color:var(--ink);
  display:grid;place-items:center;font-size:24px;font-weight:900;flex-shrink:0;
}
.feature-icon.orange{background:#FFE8DD;color:#B04400}
.feature-icon.dark{background:var(--ink);color:var(--pitch)}
.feature-mini-text h4{font-size:18px;font-weight:800;color:var(--text)}
.feature-mini-text p{margin-top:6px;font-size:14px;color:var(--muted)}

.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:40px}
.flow-step{
  background:#fff;border:1px solid var(--mist);border-radius:20px;padding:26px;
  position:relative;overflow:hidden;transition:all .2s ease;
}
.flow-step:hover{border-color:var(--pitch);box-shadow:var(--shadow-hover)}
.step-ghost{
  position:absolute;top:14px;right:16px;font-size:54px;font-weight:900;line-height:1;
  color:rgba(198,255,63,.28);z-index:0;
}
.flow-step h4{font-size:17px;font-weight:800;margin:20px 0 6px;position:relative;z-index:1}
.flow-step p{font-size:14px;color:var(--muted);position:relative;z-index:1}
.step-badge{
  color:var(--ink);background:var(--pitch);font-weight:900;font-size:12px;
  padding:5px 12px;border-radius:999px;display:inline-block;position:relative;z-index:1;
}

.channel-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:18px;align-items:center}
.channel-panel{
  background:var(--ink);color:#fff;border-radius:24px;padding:38px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;position:relative;overflow:hidden;
}
.channel-panel::before{content:"";position:absolute;inset:0;background:rgba(10,17,14,.96)}
.channel-panel .channel-inner{position:relative;z-index:2}
.channel-panel h3{font-size:28px;font-weight:900;line-height:1.25}
.channel-panel p{color:rgba(255,255,255,.72);font-size:15px;margin-top:12px}
.channel-summary{display:grid;gap:12px}
.channel-item{
  display:flex;align-items:center;justify-content:flex-start;gap:16px;
  background:#fff;border:1px solid var(--mist);border-radius:18px;padding:20px 24px;
  transition:all .2s ease;
}
.channel-item:hover{border-color:var(--pitch);box-shadow:var(--shadow-hover)}
.channel-noise{width:42px;height:42px;border-radius:14px;background:#F0F4EC;display:grid;place-items:center;font-weight:900;color:#294D21;font-size:16px;flex-shrink:0}
.channel-noise.orange-bg{background:#FFF0E8;color:#B04400}
.channel-noise.pitch-bg{background:var(--pitch);color:var(--ink)}
.channel-item b{font-size:16px;font-weight:800;color:var(--text)}
.channel-item span{font-size:13px;color:var(--muted);display:block}

.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
.faq-layout .faq-note{
  background:#fff;border:1px solid var(--mist);border-radius:22px;padding:30px;
  position:sticky;top:104px;
}
.faq-layout .faq-note .status{color:var(--ink);background:#EAF4DE;padding:9px 14px;border-radius:12px}
.faq-list{background:#fff;border:1px solid var(--mist);border-radius:22px;padding:0 28px;box-shadow:var(--shadow-soft)}
.faq-item{border-bottom:1px solid #E6EDE4}
.faq-item:last-child{border-bottom:0}
.faq-question{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:70px;cursor:pointer;font-weight:700;font-size:16px;color:var(--text);
  padding:6px 0;
}
.faq-question .q-text{flex:1;display:flex;gap:12px;align-items:baseline}
.faq-qnum{font-weight:900;font-size:14px;color:var(--pitch);background:#22301D;padding:4px 10px;border-radius:999px;flex-shrink:0}
.plus{
  position:relative;width:22px;height:22px;flex-shrink:0;border-radius:7px;
  background:#EDF3E9;transition:all .25s ease;
}
.plus::before,.plus::after{
  content:"";position:absolute;top:10px;left:6px;width:10px;height:2px;background:#2D4925;border-radius:2px;
}
.plus::after{transform:rotate(90deg)}
.faq-question:hover .q-text{color:#24510F}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .3s ease,margin .3s ease;
  color:var(--muted);font-size:14px;line-height:1.9;margin:0;
}
.faq-item.open .faq-answer{max-height:300px;margin:0 0 24px}
.faq-item.open .plus{background:var(--pitch);transform:rotate(180deg)}
.faq-item.open .plus::after{opacity:0}
.faq-item.open .plus::before{width:12px;left:5px}

.download-cta{
  background:var(--ink);position:relative;overflow:hidden;color:#fff;
  border-radius:28px;padding:60px 62px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.download-cta::before{
  content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.18;
}
.download-cta::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(198,255,63,.14),transparent 68%);
}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{font-size:40px;line-height:1.15;font-weight:900;letter-spacing:-.02em}
.cta-copy p{color:rgba(255,255,255,.76);margin-top:16px;font-size:16px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.cta-sign{position:relative;z-index:2;flex-shrink:0;max-width:180px}
.cta-trust{
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  border-radius:999px;padding:9px 16px;font-size:13px;color:rgba(255,255,255,.74);
}
.cta-trust .dot{width:8px;height:8px;background:var(--pitch);border-radius:50%;flex-shrink:0}

.site-footer{
  background:var(--ink);color:#A9B5AF;padding:66px 0 30px;margin-top:10px;
}
.site-footer .footer-top{
  display:grid;grid-template-columns:1.6fr .8fr .9fr 1.2fr;gap:34px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);
}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:var(--pitch)}
.footer-description{font-size:14px;line-height:1.9;color:rgba(255,255,255,.56);max-width:340px}
.footer-domain{
  display:inline-flex;color:rgba(255,255,255,.58);font-size:13px;margin-top:18px;
  border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:7px 15px;
}
.footer-head{color:#fff;font-size:15px;font-weight:800;margin-bottom:15px}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-links a:hover{color:var(--pitch)}
.footer-note{font-size:13px;line-height:1.8;color:rgba(255,255,255,.46)}
.footer-bottom{margin-top:24px;font-size:13px;color:rgba(255,255,255,.4)}

@media (max-width:1180px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .search-form{width:190px}
  .tl-change-list{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer .footer-top{grid-template-columns:1fr 1fr}
  .hero h1{font-size:48px}
}
@media (max-width:960px){
  .container{padding-left:24px;padding-right:24px}
  .hero{padding-top:130px}
  .hero h1{font-size:42px}
  .section{padding:72px 0}
  .section-heading h2{font-size:32px}
  .feature-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:1fr;padding-left:16px;gap:8px}
  .tl-aside{padding-left:0}
  .tl-date{font-size:13px;margin-bottom:5px}
  .download-cta{padding:40px;flex-direction:column;align-items:flex-start}
}
@media (max-width:680px){
  .container{padding-left:18px;padding-right:18px}
  body{font-size:15px}
  .header-actions .search-form,.header-login{display:none}
  .brand-main{font-size:18px}
  .brand-symbol{width:36px;height:36px}
  .hero h1{font-size:36px;letter-spacing:-.01em}
  .hero-lead{font-size:16px}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%;height:50px}
  .section{padding:60px 0}
  .section-heading h2{font-size:29px}
  .hero-meta{gap:16px}
  .release-panel{padding:6px 18px}
  .timeline{padding-left:0}
  .timeline-item{padding-left:10px}
  .version-chip{font-size:12px}
  .tl-change-list{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .faq-list{padding:0 20px}
  .faq-question{font-size:15px}
  .download-cta{padding:32px 22px}
  .cta-copy h2{font-size:29px}
  .cta-actions .btn-primary,.cta-actions .btn-surface{width:100%;height:50px}
  .site-footer .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-top>div:first-child{width:100%}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
}

/* roulang page: category2 */
:root {
      --color-pitch: #C6FF3F;
      --color-pitch-light: #DBFF80;
      --color-ink: #0C1210;
      --color-panel: #121A16;
      --color-canvas: #F4F7F2;
      --color-surface: #FFFFFF;
      --color-signal: #FF6A22;
      --color-mist: #E2E8DF;
      --color-text: #14201B;
      --color-text-invert: #F3F7F4;
      --radius-lg: 16px;
      --radius-md: 10px;
      --shadow-soft: 0 1px 2px rgba(16, 24, 20, .06), 0 4px 16px rgba(16, 24, 20, .05);
      --shadow-hover: 0 12px 32px rgba(16, 24, 20, .12);
      --transition: 160ms ease;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--color-canvas);
      color: var(--color-text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
    }

    h1,
    h2,
    h3,
    h4 {
      margin: 0;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.01em;
    }

    p {
      margin: 0;
    }

    ul,
    ol {
      margin: 0;
      padding: 0;
    }

    li {
      list-style: none;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      display: block;
      max-width: 100%;
    }

    button,
    input {
      font: inherit;
    }

    button {
      border: none;
      background: none;
      cursor: pointer;
    }

    input {
      outline: none;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }

    .section {
      padding: 96px 0;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 48px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      border-radius: 999px;
      background: rgba(198, 255, 63, .18);
      color: #17300f;
      font-size: 13px;
      font-weight: 700;
      line-height: 1;
      padding: 8px 14px;
    }

    .section-tag::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-pitch);
      box-shadow: 0 0 0 3px rgba(198, 255, 63, .25);
    }

    .section-title {
      font-size: clamp(30px, 4vw, 42px);
      font-weight: 800;
      color: var(--color-text);
    }

    .section-lead {
      margin-top: 16px;
      color: #52605a;
      font-size: 16px;
      line-height: 1.8;
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: 72px;
      background: rgba(12, 18, 16, .9);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      height: 72px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .brand-symbol {
      display: grid;
      place-items: center;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--color-pitch);
      color: #0A2507;
      font-size: 24px;
      font-weight: 900;
      line-height: 1;
      box-shadow: 0 0 0 4px rgba(198, 255, 63, .12);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.1;
      font-size: 15px;
    }

    .brand-main {
      color: #FFFFFF;
      font-weight: 900;
      letter-spacing: .01em;
    }

    .brand-sub {
      margin-top: 3px;
      color: var(--color-pitch);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-left: auto;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 0 16px;
      border-radius: 10px;
      color: rgba(255, 255, 255, .72);
      font-size: 15px;
      font-weight: 600;
      transition: color var(--transition), background var(--transition);
    }

    .nav-links a:hover {
      color: #FFFFFF;
      background: rgba(255, 255, 255, .08);
    }

    .nav-links a.active {
      color: var(--color-pitch);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      right: 16px;
      bottom: 2px;
      left: 16px;
      height: 2px;
      border-radius: 999px;
      background: var(--color-pitch);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .search-form {
      display: flex;
      align-items: center;
      width: 220px;
      height: 40px;
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 999px;
      padding: 0 14px;
      background: rgba(255, 255, 255, .08);
      color: rgba(255, 255, 255, .6);
      transition: border-color var(--transition), background var(--transition);
    }

    .search-form:focus-within {
      border-color: rgba(198, 255, 63, .6);
      background: rgba(255, 255, 255, .1);
    }

    .search-form input {
      width: 100%;
      border: 0;
      background: transparent;
      color: #FFFFFF;
      font-size: 14px;
      margin-left: 8px;
    }

    .search-form input::placeholder {
      color: rgba(255, 255, 255, .5);
    }

    .search-form svg {
      flex-shrink: 0;
      width: 16px;
      height: 16px;
    }

    .header-download {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 40px;
      padding: 0 18px;
      border-radius: 10px;
      background: var(--color-pitch);
      color: #0A2507;
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
      transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    }

    .header-download:hover {
      background: var(--color-pitch-light);
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(198, 255, 63, .2);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      padding: 10px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, .12);
      color: #FFFFFF;
    }

    .menu-toggle svg {
      width: 100%;
      height: 100%;
    }

    /* Category Hero */
    .cat-hero {
      position: relative;
      overflow: hidden;
      background: var(--color-ink);
      padding: 76px 0 88px;
      color: var(--color-text-invert);
    }

    .cat-hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      opacity: .32;
    }

    .cat-hero-bg::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(12, 18, 16, .96) 8%, rgba(12, 18, 16, .82) 55%, rgba(12, 18, 16, .72) 100%);
    }

    .cat-hero-inner {
      position: relative;
      z-index: 2;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 6px;
      color: rgba(255, 255, 255, .6);
      font-size: 14px;
      margin-bottom: 28px;
    }

    .breadcrumb a {
      transition: color var(--transition);
    }

    .breadcrumb a:hover {
      color: var(--color-pitch);
    }

    .breadcrumb svg {
      width: 14px;
      height: 14px;
      opacity: .7;
    }

    .breadcrumb span {
      color: rgba(255, 255, 255, .92);
    }

    .cat-hero h1 {
      max-width: 800px;
      color: #FFFFFF;
      font-size: clamp(42px, 6vw, 64px);
      line-height: 1.05;
      font-weight: 900;
      font-feature-settings: "tnum";
    }

    .cat-hero h1 .accent {
      display: inline-block;
      color: var(--color-pitch);
    }

    .cat-hero-lead {
      max-width: 660px;
      margin-top: 24px;
      color: rgba(255, 255, 255, .82);
      font-size: 17px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 32px;
    }

    .btn-primary,
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      height: 50px;
      padding: 0 26px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 800;
      line-height: 1;
      transition: all 180ms ease;
    }

    .btn-primary {
      background: var(--color-pitch);
      color: #0A2507;
    }

    .btn-primary:hover {
      background: var(--color-pitch-light);
      transform: translateY(-1px);
      box-shadow: 0 10px 28px rgba(198, 255, 63, .22);
    }

    .btn-outline {
      border: 1px solid rgba(255, 255, 255, .28);
      color: #FFFFFF;
      background: rgba(255, 255, 255, .04);
    }

    .btn-outline:hover {
      border-color: rgba(198, 255, 63, .55);
      background: rgba(255, 255, 255, .1);
      color: var(--color-pitch);
    }

    .hero-qklist {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 38px;
    }

    .hero-qklist a {
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 999px;
      padding: 8px 15px;
      background: rgba(255, 255, 255, .06);
      color: rgba(255, 255, 255, .84);
      font-size: 13px;
      font-weight: 600;
      transition: all var(--transition);
    }

    .hero-qklist a:hover {
      border-color: var(--color-pitch);
      color: var(--color-pitch);
    }

    .badge-line {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 32px;
    }

    .badge-line span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: rgba(255, 255, 255, .72);
      font-size: 13px;
    }

    .badge-line span i {
      display: inline-block;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-pitch);
    }

    /* Steps */
    .steps-section {
      background: var(--color-surface);
    }

    .step-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      position: relative;
    }

    .step-item {
      position: relative;
      padding: 30px 26px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-mist);
      background: var(--color-canvas);
      box-shadow: var(--shadow-soft);
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .step-item:hover {
      border-color: var(--color-pitch);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .step-num {
      display: grid;
      place-items: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--color-pitch);
      color: #0A2507;
      font-weight: 800;
      font-size: 17px;
      font-feature-settings: "tnum";
    }

    .step-item h3 {
      margin-top: 20px;
      font-size: 18px;
      font-weight: 800;
    }

    .step-item p {
      margin-top: 10px;
      color: #5a665f;
      font-size: 14px;
      line-height: 1.75;
    }

    /* Split */
    .split-section {
      background: var(--color-canvas);
    }

    .split-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .split-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .split-media img {
      width: 100%;
      height: 460px;
      object-fit: cover;
    }

    .split-media-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      border-radius: 999px;
      background: rgba(12, 18, 16, .82);
      color: #fff;
      font-size: 13px;
      font-weight: 700;
      padding: 7px 14px;
      backdrop-filter: blur(6px);
    }

    .split-copy h2 {
      font-size: clamp(28px, 3.4vw, 38px);
      color: var(--color-text);
    }

    .split-copy > p {
      margin-top: 18px;
      color: #5d6962;
      line-height: 1.9;
    }

    .check-list {
      display: grid;
      gap: 16px;
      margin-top: 28px;
    }

    .check-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      font-size: 15px;
      color: var(--color-text);
    }

    .check-list svg {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      margin-top: 3px;
      color: var(--color-pitch);
    }

    .split-note {
      margin-top: 24px;
      padding: 16px 20px;
      background: #F0F5EA;
      border-left: 3px solid var(--color-pitch);
      border-radius: 10px;
      color: #354038;
      font-size: 14px;
    }

    /* Document cards */
    .guide-doc-section {
      background: var(--color-surface);
    }

    .doc-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      grid-template-rows: repeat(2, minmax(180px, auto));
      gap: 18px;
    }

    .doc-main {
      grid-row: span 2;
      position: relative;
      min-height: 380px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      color: #fff;
      background-color: #1a2420;
    }

    .doc-main img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .45;
    }

    .doc-main-content {
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      height: 100%;
      padding: 28px;
      background: linear-gradient(0deg, rgba(12, 18, 16, .92) 0%, rgba(12, 18, 16, .32) 60%, rgba(12, 18, 16, .1) 100%);
    }

    .doc-main-content span {
      color: var(--color-pitch);
      font-size: 13px;
      font-weight: 700;
    }

    .doc-main-content h3 {
      margin-top: 8px;
      font-size: 26px;
      line-height: 1.35;
      color: #fff;
      font-weight: 900;
    }

    .doc-main-content p {
      max-width: 460px;
      margin-top: 12px;
      color: rgba(255, 255, 255, .78);
      font-size: 15px;
      line-height: 1.8;
    }

    .doc-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 20px;
      color: var(--color-pitch);
      font-weight: 800;
      font-size: 15px;
      transition: gap var(--transition);
    }

    .doc-link:hover {
      gap: 13px;
    }

    .doc-card {
      position: relative;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-mist);
      padding: 24px;
      display: flex;
      flex-direction: column;
      background: var(--color-canvas);
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .doc-card:hover {
      border-color: var(--color-pitch);
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .doc-card-icon {
      display: grid;
      place-items: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: rgba(198, 255, 63, .18);
      color: #203d13;
      font-weight: 900;
      font-size: 18px;
    }

    .doc-card h3 {
      margin-top: 16px;
      font-size: 17px;
    }

    .doc-card p {
      flex: 1;
      margin-top: 8px;
      color: #5f6b64;
      font-size: 14px;
      line-height: 1.7;
    }

    .doc-card a {
      margin-top: 15px;
      color: #203d13;
      font-weight: 700;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .doc-card a svg {
      width: 16px;
      height: 16px;
      transition: transform var(--transition);
    }

    .doc-card a:hover svg {
      transform: translateX(4px);
    }

    /* Settings / tabs */
    .settings-section {
      background: var(--color-ink);
      color: #fff;
      overflow: hidden;
    }

    .settings-section .section-title {
      color: #fff;
    }

    .settings-section .section-lead {
      color: rgba(255, 255, 255, .72);
    }

    .settings-section .section-tag {
      background: rgba(198, 255, 63, .14);
      color: var(--color-pitch);
    }

    .tab-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 36px 0 22px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
      padding-bottom: 2px;
    }

    .tab-btn {
      display: inline-flex;
      align-items: center;
      height: 44px;
      padding: 0 18px;
      color: rgba(255, 255, 255, .6);
      font-weight: 600;
      border-radius: 10px 10px 0 0;
      transition: color var(--transition), background var(--transition);
    }

    .tab-btn:hover {
      color: #FFFFFF;
      background: rgba(255, 255, 255, .06);
    }

    .tab-btn.is-active {
      color: var(--color-pitch);
      box-shadow: inset 0 -2px 0 var(--color-pitch);
    }

    .tab-panel {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .mini-spec {
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: 14px;
      padding: 20px;
      background: rgba(255, 255, 255, .04);
      transition: border-color var(--transition), background var(--transition);
    }

    .mini-spec:hover {
      border-color: rgba(198, 255, 63, .4);
      background: rgba(255, 255, 255, .07);
    }

    .mini-spec svg {
      width: 22px;
      height: 22px;
      color: var(--color-pitch);
    }

    .mini-spec h3 {
      margin-top: 14px;
      font-size: 16px;
      color: #fff;
      font-weight: 700;
    }

    .mini-spec p {
      margin-top: 8px;
      color: rgba(255, 255, 255, .62);
      font-size: 13px;
      line-height: 1.6;
    }

    /* FAQ */
    .faq-section {
      background: var(--color-canvas);
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 0.9fr 1.4fr;
      gap: 56px;
      align-items: start;
    }

    .faq-side h2 {
      font-size: clamp(28px, 3vw, 38px);
    }

    .faq-side p {
      margin-top: 20px;
      color: #5d6962;
      font-size: 16px;
      line-height: 1.8;
    }

    .faq-contact {
      margin-top: 28px;
      padding: 20px 22px;
      background: #fff;
      border-radius: 14px;
      border: 1px solid var(--color-mist);
      box-shadow: var(--shadow-soft);
    }

    .faq-contact strong {
      display: block;
      font-size: 16px;
      color: var(--color-text);
    }

    .faq-contact span {
      display: block;
      margin-top: 4px;
      color: #66726b;
      font-size: 15px;
    }

    .faq-list {
      display: block;
    }

    .faq-item {
      border-bottom: 1px solid var(--color-mist);
      background: #fff;
    }

    .faq-item:first-child {
      border-radius: 14px 14px 0 0;
    }

    .faq-item:last-child {
      border-radius: 0 0 14px 14px;
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 18px 22px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 700;
      list-style: none;
      color: var(--color-text);
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary .plus {
      display: grid;
      place-items: center;
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(198, 255, 63, .18);
      color: #203d13;
      font-size: 20px;
      line-height: 1;
      transition: transform 180ms ease, background 180ms ease;
    }

    .faq-item[open] summary .plus {
      transform: rotate(45deg);
      background: var(--color-pitch);
    }

    .faq-answer {
      padding: 0 22px 22px;
      color: #58655e;
      font-size: 15px;
      line-height: 1.9;
    }

    /* CTA */
    .download-cta {
      background: var(--color-ink);
      padding: 56px 0;
      color: #fff;
      overflow: hidden;
    }

    .cta-box {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      border-radius: 24px;
      border: 1px solid rgba(255, 255, 255, .1);
      padding: 40px;
      background: var(--color-panel);
      position: relative;
    }

    .cta-box::before {
      content: "";
      position: absolute;
      top: -60px;
      right: 6%;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(198, 255, 63, .22), transparent 68%);
    }

    .cta-copy h2 {
      color: #fff;
      font-size: clamp(26px, 3vw, 36px);
      font-weight: 900;
      line-height: 1.2;
    }

    .cta-copy h2 em {
      font-style: normal;
      color: var(--color-pitch);
    }

    .cta-copy p {
      margin-top: 16px;
      color: rgba(255, 255, 255, .7);
      max-width: 640px;
      line-height: 1.8;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .qr-area {
      position: relative;
      text-align: center;
    }

    .qr-ph {
      width: 142px;
      height: 142px;
      border-radius: 14px;
      background: #FFFFFF;
      padding: 10px;
      border: 1px solid rgba(255, 255, 255, .35);
      display: grid;
      place-items: center;
    }

    .qr-ph span {
      width: 100%;
      height: 100%;
      display: block;
      border-radius: 8px;
      background-color: #1D1B16;
      background-image: linear-gradient(135deg, #2A312C 12%, transparent 12%, transparent 25%, #2A312C 25%, #2A312C 38%, transparent 38%, transparent 52%, #2A312C 52%, #2A312C 66%, transparent 66%);
      background-size: 16px 16px;
    }

    .qr-caption {
      margin-top: 8px;
      color: rgba(255, 255, 255, .62);
      font-size: 13px;
    }

    /* Footer */
    .site-footer {
      background: #0B100E;
      color: rgba(255, 255, 255, .72);
      padding: 64px 0 32px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .footer-brand .brand-main,
    .footer-brand .brand-sub {
      color: #fff;
    }

    .footer-brand .brand-sub {
      color: var(--color-pitch);
    }

    .footer-description {
      color: rgba(255, 255, 255, .62);
      font-size: 14px;
      line-height: 1.85;
      max-width: 360px;
    }

    .footer-domain {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 20px;
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 999px;
      padding: 8px 14px;
      background: rgba(255, 255, 255, .04);
      color: rgba(255, 255, 255, .8);
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
      font-size: 13px;
    }

    .footer-head {
      color: #fff;
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .footer-links {
      display: grid;
      gap: 12px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .65);
      font-size: 14px;
      transition: color var(--transition);
    }

    .footer-links a:hover {
      color: var(--color-pitch);
    }

    .footer-note {
      color: rgba(255, 255, 255, .55);
      font-size: 14px;
      line-height: 1.85;
    }

    .footer-bottom {
      padding-top: 24px;
      color: rgba(255, 255, 255, .45);
      font-size: 13px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
    }

    /* Responsive */
    @media (max-width: 1180px) {
      .search-form {
        width: 180px;
      }
    }

    @media (max-width: 1023px) {
      .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 72px;
        right: 0;
        width: min(440px, 100%);
        padding: 20px;
        background: var(--color-ink);
        border-left: 1px solid rgba(255, 255, 255, .1);
        height: calc(100vh - 72px);
        align-items: stretch;
        gap: 8px;
        transform: translateX(100%);
        transition: transform 220ms ease;
        margin-left: 0;
      }

      .site-header.open .nav-links {
        transform: translateX(0);
      }

      .nav-links a {
        padding: 0 14px;
        height: 48px;
      }

      .menu-toggle {
        display: grid;
        place-items: center;
      }

      .header-actions {
        margin-left: auto;
      }

      .header-actions .search-form {
        display: none;
      }
    }

    @media (max-width: 960px) {
      .section {
        padding: 72px 0;
      }

      .step-wrap {
        grid-template-columns: repeat(2, 1fr);
      }

      .doc-grid {
        grid-template-columns: 1fr 1fr;
      }

      .doc-main {
        grid-column: span 2;
        min-height: 280px;
      }

      .tab-panel {
        grid-template-columns: repeat(2, 1fr);
      }

      .faq-layout {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .split-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .split-media img {
        height: 320px;
      }

      .footer-top {
        grid-template-columns: 1.5fr 1fr 1fr;
      }

      .footer-top .footer-brand {
        grid-column: span 3;
      }
    }

    @media (max-width: 760px) {
      .container {
        padding: 0 20px;
      }

      .header-inner {
        gap: 10px;
      }

      .header-download {
        width: 44px;
        height: 44px;
        padding: 0;
        font-size: 0;
        position: relative;
      }

      .header-download::before {
        content: "下载";
        font-size: 13px;
      }

      .brand-text {
        display: flex;
      }

      .brand-main {
        font-size: 14px;
      }

      .brand-sub {
        font-size: 12px;
      }

      .cat-hero {
        padding: 56px 0 72px;
      }

      .step-wrap {
        grid-template-columns: 1fr;
      }

      .doc-grid {
        grid-template-columns: 1fr;
      }

      .doc-main {
        grid-column: span 1;
      }

      .tab-panel {
        grid-template-columns: 1fr;
      }

      .cta-box {
        grid-template-columns: 1fr;
        padding: 28px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .footer-top .footer-brand {
        grid-column: span 1;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
    }

    @media (max-width: 520px) {
      .split-media img {
        height: 230px;
      }

      .hero-actions .btn-primary,
      .hero-actions .btn-outline {
        width: 100%;
      }

      .section {
        padding: 56px 0;
      }
    }

/* roulang page: category3 */
:root {
      --color-pitch: #C6FF3F;
      --color-pitch-light: #DBFF80;
      --color-ink: #0C1210;
      --color-panel: #121A16;
      --color-canvas: #F4F7F2;
      --color-surface: #FFFFFF;
      --color-signal: #FF6A22;
      --color-mist: #E2E8DF;
      --color-text: #14201B;
      --color-text-invert: #F3F7F4;
      --radius-main: 16px;
      --radius-sm: 10px;
      --shadow-card: 0 1px 2px rgba(16,24,20,.06), 0 4px 16px rgba(16,24,20,.05);
      --shadow-hover: 0 12px 32px rgba(16,24,20,.12);
      --container: 1280px;
      --font-system: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      -webkit-text-size-adjust: 100%;
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-system);
      background: var(--color-canvas);
      color: var(--color-text);
      line-height: 1.6;
      font-feature-settings: "tnum";
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }

    button,
    input {
      font: inherit;
      color: inherit;
    }

    button {
      cursor: pointer;
      border: none;
      background: none;
    }

    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 32px;
      padding-right: 32px;
    }

    .section {
      padding-top: 96px;
      padding-bottom: 96px;
    }

    .section-head {
      max-width: 820px;
      margin: 0 auto 48px;
      text-align: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(198, 255, 63, .16);
      color: #1C5B1F;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .05em;
    }

    .section-title {
      font-size: 36px;
      line-height: 1.25;
      letter-spacing: -0.02em;
      font-weight: 800;
      margin: 16px 0 12px;
    }

    .section-sub {
      font-size: 17px;
      line-height: 1.75;
      color: #4B5D53;
      max-width: 680px;
      margin: 0 auto;
    }

    .eyebrow-green,
    .section-title-green,
    .section-sub-light {
      color: #fff;
    }

    .eyebrow-green {
      background: rgba(198, 255, 63, .14);
      color: var(--color-pitch);
    }

    .description-muted {
      color: #46564D;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      transition: transform .16s ease, background .16s ease, border-color .16s ease, box-shadow .16s ease;
    }

    .btn:focus-visible,
    .faq-q:focus-visible,
    .nav-toggle:focus-visible {
      outline: 3px solid var(--color-pitch);
      outline-offset: 3px;
    }

    .btn-primary {
      min-height: 48px;
      padding: 0 24px;
      background: var(--color-pitch);
      color: var(--color-ink);
      box-shadow: 0 1px 0 rgba(255,255,255,.2) inset, 0 4px 14px rgba(198,255,63,.18);
    }

    .btn-primary:hover {
      background: var(--color-pitch-light);
      transform: translateY(-1px);
      box-shadow: 0 8px 22px rgba(198,255,63,.25);
    }

    .btn-primary:active {
      transform: translateY(1px);
    }

    .btn-sm {
      min-height: 40px;
      padding: 0 18px;
      font-size: 14px;
    }

    .btn-ghost {
      min-height: 48px;
      padding: 0 22px;
      border: 1px solid rgba(255,255,255,.25);
      color: #fff;
      background: transparent;
    }

    .btn-ghost:hover {
      background: rgba(255,255,255,.08);
      border-color: rgba(255,255,255,.45);
    }

    .btn-light {
      background: #fff;
      color: var(--color-ink);
      min-height: 48px;
      padding: 0 24px;
      font-weight: 800;
    }

    .btn-light:hover {
      transform: translateY(-1px);
      box-shadow: 0 12px 24px rgba(0,0,0,.18);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(11, 18, 16, .84);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255,255,255,.08);
    }

    .header-row {
      height: 72px;
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .header-left {
      flex: 0 0 auto;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
    }

    .brand-symbol {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 13px;
      background: var(--color-pitch);
      color: var(--color-ink);
      font-size: 24px;
      line-height: 1;
      font-weight: 900;
      box-shadow: inset 0 0 0 1px rgba(0,0,0,.1), 0 2px 0 rgba(255,255,255,.08);
    }

    .brand-text {
      display: flex;
      align-items: baseline;
      gap: 8px;
      line-height: 1.2;
    }

    .brand-main {
      font-size: 20px;
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .brand-sub {
      font-size: 12px;
      font-weight: 700;
      color: var(--color-pitch);
      background: rgba(198, 255, 63, .12);
      border: 1px solid rgba(198, 255, 63, .22);
      padding: 4px 8px;
      border-radius: 999px;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      margin-left: 16px;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      height: 42px;
      padding: 0 15px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      color: rgba(255,255,255,.82);
      background: transparent;
      border-bottom: 2px solid transparent;
    }

    .nav-links a:hover {
      color: #fff;
      background: rgba(255,255,255,.08);
    }

    .nav-links a.active {
      color: var(--color-pitch);
      background: rgba(198, 255, 63, .08);
      box-shadow: inset 0 -2px 0 var(--color-pitch);
    }

    .header-actions {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .search-form {
      position: relative;
    }

    .search-input {
      width: 200px;
      height: 40px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.18);
      background: rgba(255,255,255,.09);
      padding: 0 20px 0 16px;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color .2s ease, width .2s ease, background .2s ease;
    }

    .search-input::placeholder {
      color: rgba(255,255,255,.55);
    }

    .search-input:focus {
      border-color: var(--color-pitch);
      background: rgba(255,255,255,.14);
      width: 230px;
    }

    .search-form svg {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      opacity: .55;
    }

    .nav-toggle {
      display: none;
      width: 46px;
      height: 46px;
      margin-left: auto;
      color: #fff;
    }

    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
      display: block;
      content: "";
      width: 22px;
      height: 2px;
      background: #fff;
      margin: 5px auto;
      transition: .2s ease;
    }

    .mobile-nav {
      display: none;
    }

    .page-hero {
      position: relative;
      min-height: 360px;
      background: var(--color-ink);
      overflow: hidden;
      color: var(--color-text-invert);
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background-position: center;
      background-size: cover;
      opacity: .5;
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(8, 12, 10, .96) 0%, rgba(8, 12, 10, .74) 56%, rgba(8, 12, 10, .36) 100%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      padding: 88px 0 66px;
      max-width: 900px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      color: rgba(255,255,255,.62);
      font-size: 14px;
      margin-bottom: 28px;
    }

    .breadcrumb a {
      color: var(--color-pitch);
    }

    .page-hero h1 {
      font-size: 54px;
      line-height: 1.1;
      font-weight: 900;
      letter-spacing: -0.025em;
      margin: 0 0 22px;
      color: #fff;
    }

    .page-hero h1 .hero-accent {
      color: var(--color-pitch);
    }

    .hero-lead {
      font-size: 19px;
      line-height: 1.8;
      color: rgba(255,255,255,.88);
      max-width: 680px;
      margin: 0 0 28px;
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
      padding: 0;
      margin: 0 0 32px;
    }

    .hero-tags li {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      height: 34px;
      padding: 0 14px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.26);
      font-size: 13px;
      color: rgba(255,255,255,.92);
    }

    .hero-tags li::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-pitch);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .hero-note {
      font-size: 13px;
      color: rgba(255,255,255,.56);
      margin: 0;
    }

    .notice-section {
      background: var(--color-canvas);
    }

    .notice-layout {
      display: grid;
      grid-template-columns: 1.55fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

    .pinned-card {
      position: relative;
      padding: 38px 38px 34px;
      border-radius: 20px;
      background: var(--color-ink);
      color: #fff;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }

    .pinned-card::after {
      content: "";
      position: absolute;
      right: -70px;
      top: -70px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(198,255,63,.16), transparent 70%);
      pointer-events: none;
    }

    .pinned-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--color-pitch);
      margin-bottom: 18px;
      position: relative;
      z-index: 1;
    }

    .pinned-label span {
      width: 52px;
      height: 26px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--color-pitch);
      color: var(--color-ink);
      font-weight: 900;
      border-radius: 999px;
    }

    .pinned-card h3 {
      font-size: 28px;
      line-height: 1.3;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin: 0 0 16px;
      position: relative;
      z-index: 1;
    }

    .pinned-card > p {
      color: rgba(255,255,255,.8);
      font-size: 17px;
      line-height: 1.8;
      margin: 0 0 24px;
      position: relative;
      z-index: 1;
    }

    .pinned-points {
      list-style: none;
      margin: 0 0 28px;
      padding: 0;
      display: grid;
      gap: 10px;
      position: relative;
      z-index: 1;
    }

    .pinned-points li {
      position: relative;
      padding-left: 24px;
      color: rgba(255,255,255,.84);
    }

    .pinned-points li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--color-pitch);
      font-weight: 800;
    }

    .pinned-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      border-top: 1px solid rgba(255,255,255,.12);
      padding-top: 20px;
      position: relative;
      z-index: 1;
    }

    .pinned-foot time {
      font-size: 14px;
      color: rgba(255,255,255,.58);
    }

    .link-line {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--color-pitch);
      font-weight: 700;
      font-size: 14px;
    }

    .link-line::after {
      content: "→";
      transition: transform .2s ease;
    }

    .link-line:hover::after {
      transform: translateX(5px);
    }

    .notice-list-card {
      background: var(--color-surface);
      border: 1px solid var(--color-mist);
      border-radius: 20px;
      box-shadow: var(--shadow-card);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .notice-list-card h3 {
      font-size: 20px;
      font-weight: 800;
      margin: 0;
      padding: 22px 24px 16px;
      border-bottom: 1px solid var(--color-mist);
    }

    .notice-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .notice-item {
      padding: 18px 24px;
      border-bottom: 1px solid rgba(226,232,223,.8);
      transition: background .2s ease;
    }

    .notice-item:last-child {
      border-bottom: none;
    }

    .notice-item:hover {
      background: rgba(198,255,63,.08);
    }

    .notice-item-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 8px;
    }

    .notice-item-meta time {
      font-size: 12px;
      color: #70827A;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      height: 24px;
      padding: 0 10px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 700;
      line-height: 1;
    }

    .tag-signal {
      background: rgba(255,106,34,.12);
      color: #D9531C;
    }

    .tag-pitch {
      background: rgba(198,255,63,.2);
      color: #435B22;
    }

    .tag-muted {
      background: #EDF1EC;
      color: #556A61;
    }

    .notice-item h4 {
      font-size: 16px;
      font-weight: 800;
      margin: 0 0 6px;
      line-height: 1.45;
    }

    .notice-item p {
      margin: 0;
      font-size: 14px;
      line-height: 1.65;
      color: #64746C;
    }

    .feature-section {
      background: #FDFEFC;
      border-top: 1px solid var(--color-mist);
      border-bottom: 1px solid var(--color-mist);
    }

    .feature-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      grid-template-areas: "main side" "wide wide";
      gap: 24px;
    }

    .feature-card {
      border-radius: 20px;
      border: 1px solid var(--color-mist);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      background: var(--color-surface);
      transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
    }

    .feature-card:hover {
      border-color: var(--color-pitch);
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .feature-card-main {
      grid-area: main;
    }

    .feature-card-side {
      grid-area: side;
      background: var(--color-ink);
      color: #fff;
      border: none;
    }

    .feature-card-side:hover {
      border-color: var(--color-pitch);
    }

    .feature-card-wide {
      grid-area: wide;
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 26px 30px;
    }

    .feature-card-wide .wide-icon {
      flex: 0 0 auto;
      width: 54px;
      height: 54px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 16px;
      background: var(--color-ink);
      color: var(--color-pitch);
      font-size: 20px;
      font-weight: 900;
    }

    .feature-cover {
      width: 100%;
      height: 224px;
      object-fit: cover;
    }

    .feature-card-body {
      padding: 24px 26px 28px;
    }

    .feature-card-body h3 {
      font-size: 24px;
      font-weight: 800;
      margin: 0 0 12px;
      letter-spacing: -0.01em;
    }

    .feature-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .feature-list li {
      position: relative;
      padding-left: 22px;
      color: #3D5147;
      line-height: 1.7;
      margin-bottom: 10px;
    }

    .feature-list li:last-child {
      margin-bottom: 0;
    }

    .feature-list li::before {
      content: "✔";
      position: absolute;
      left: 0;
      font-weight: 900;
      color: #7EBA1F;
    }

    .feature-card-side {
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background-image: radial-gradient(circle at top right, rgba(198,255,63,.18), transparent 48%);
    }

    .feature-card-side .side-label {
      font-size: 13px;
      color: var(--color-pitch);
      font-weight: 800;
      letter-spacing: .04em;
    }

    .feature-card-side h3 {
      font-size: 22px;
      line-height: 1.4;
      margin: 14px 0 18px;
      font-weight: 800;
    }

    .side-channel {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-bottom: 24px;
    }

    .side-channel div {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .side-channel .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--color-pitch);
      box-shadow: 0 0 0 5px rgba(198,255,63,.14);
    }

    .side-channel span {
      color: rgba(255,255,255,.88);
      font-size: 15px;
    }

    .wide-copy {
      flex: 1;
    }

    .wide-copy h3 {
      font-size: 18px;
      font-weight: 800;
      margin: 0 0 8px;
    }

    .wide-copy p {
      margin: 0;
      color: #556B61;
      line-height: 1.7;
    }

    .btn-dark {
      min-height: 44px;
      padding: 0 20px;
      border-radius: var(--radius-sm);
      background: var(--color-ink);
      color: #fff;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      font-size: 14px;
    }

    .btn-dark:hover {
      background: #1C2922;
      transform: translateY(-1px);
    }

    .process-section {
      background: var(--color-ink);
      color: var(--color-text-invert);
      position: relative;
      overflow: hidden;
    }

    .process-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size: 44px 44px;
      pointer-events: none;
    }

    .process-section .container {
      position: relative;
      z-index: 1;
    }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 44px;
    }

    .process-item {
      border: 1px solid rgba(255,255,255,.13);
      background: rgba(255,255,255,.045);
      border-radius: 18px;
      padding: 24px;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
    }

    .process-item:hover {
      background: rgba(255,255,255,.09);
      border-color: rgba(198,255,63,.6);
      transform: translateY(-3px);
    }

    .process-num {
      font-size: 36px;
      line-height: 1;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--color-pitch);
      opacity: .9;
      display: block;
      margin-bottom: 18px;
    }

    .process-item h3 {
      font-size: 19px;
      font-weight: 800;
      margin: 0 0 10px;
    }

    .process-item p {
      margin: 0;
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255,255,255,.66);
    }

    .process-section .section-title {
      max-width: 600px;
    }

    .process-section .section-sub {
      color: rgba(255,255,255,.6);
    }

    .faq-section {
      background: var(--color-canvas);
    }

    .faq-layout {
      display: grid;
      grid-template-columns: .95fr 1.4fr;
      gap: 56px;
    }

    .faq-intro {
      position: sticky;
      top: 100px;
      align-self: start;
    }

    .faq-intro .section-title {
      font-size: 34px;
    }

    .faq-note {
      margin-top: 28px;
      padding: 18px 20px;
      border-radius: 14px;
      border: 1px solid var(--color-mist);
      background: #fff;
      color: #4D6258;
      font-size: 14px;
      line-height: 1.8;
    }

    .faq-note strong {
      color: var(--color-text);
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      border: 1px solid var(--color-mist);
      background: var(--color-surface);
      border-radius: 16px;
      overflow: hidden;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .faq-item.open {
      border-color: rgba(198,255,63,.75);
      box-shadow: var(--shadow-card);
    }

    .faq-q {
      width: 100%;
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 20px 22px;
      text-align: left;
      font-size: 16px;
      line-height: 1.5;
      font-weight: 800;
    }

    .faq-index {
      color: #9BA9A1;
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .03em;
    }

    .faq-icon {
      position: relative;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: rgba(198,255,63,.18);
      flex: 0 0 22px;
      transition: transform .2s ease;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: #2C6932;
      border-radius: 3px;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
    }

    .faq-icon::before {
      width: 10px;
      height: 2px;
    }

    .faq-icon::after {
      width: 2px;
      height: 10px;
      transition: opacity .2s ease;
    }

    .faq-item.open .faq-icon::after {
      opacity: 0;
    }

    .faq-item.open .faq-icon {
      transform: rotate(180deg);
      background: var(--color-pitch);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .25s ease;
    }

    .faq-item.open .faq-a {
      max-height: 400px;
    }

    .faq-a-inner {
      padding: 0 22px 24px 52px;
      color: #4D6258;
      font-size: 15px;
      line-height: 1.8;
    }

    .cta-section {
      padding-bottom: 96px;
      background: var(--color-canvas);
    }

    .cta-band {
      border-radius: 22px;
      background: var(--color-ink);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      padding: 42px 44px;
      position: relative;
      overflow: hidden;
    }

    .cta-band::after {
      content: "";
      position: absolute;
      right: -40px;
      bottom: -70px;
      width: 240px;
      height: 180px;
      background: linear-gradient(135deg, transparent 40%, rgba(198,255,63,.2) 40%);
      transform: rotate(-8deg);
      pointer-events: none;
    }

    .cta-left h2 {
      margin: 0 0 10px;
      font-size: 30px;
      line-height: 1.3;
      font-weight: 900;
    }

    .cta-left p {
      margin: 0;
      color: rgba(255,255,255,.65);
      font-size: 15px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }

    .site-footer {
      background: var(--color-ink);
      color: var(--color-text-invert);
      padding-top: 64px;
      padding-bottom: 28px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
    }

    .site-footer a {
      color: rgba(255,255,255,.7);
      transition: color .2s ease;
    }

    .site-footer a:hover {
      color: var(--color-pitch);
    }

    .site-footer .footer-head {
      font-size: 15px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 18px;
      letter-spacing: .03em;
    }

    .footer-brand {
      color: #fff;
      margin-bottom: 6px;
    }

    .footer-description {
      margin: 18px 0 16px;
      color: rgba(255,255,255,.62);
      font-size: 14px;
      line-height: 1.8;
      max-width: 380px;
    }

    .footer-domain {
      display: inline-flex;
      align-items: center;
      height: 34px;
      padding: 0 14px;
      border: 1px solid rgba(255,255,255,.2);
      border-radius: 999px;
      font-size: 13px;
      color: rgba(255,255,255,.72);
    }

    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
    }

    .footer-links a.active {
      color: var(--color-pitch);
    }

    .footer-note {
      color: rgba(255,255,255,.5);
      font-size: 13px;
      line-height: 1.8;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,.1);
      margin-top: 44px;
      padding-top: 22px;
      color: rgba(255,255,255,.45);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .container {
        padding-left: 24px;
        padding-right: 24px;
      }

      .nav-links,
      .header-actions {
        display: none;
      }

      .nav-toggle {
        display: block;
        margin-left: auto;
      }

      .mobile-nav {
        display: none;
        flex-direction: column;
        gap: 6px;
        padding: 16px 24px 24px;
        background: rgba(11,18,16,.98);
        border-top: 1px solid rgba(255,255,255,.08);
      }

      .mobile-nav.open {
        display: flex;
      }

      .mobile-nav a {
        padding: 14px 18px;
        border-radius: 12px;
        background: rgba(255,255,255,.06);
        color: #fff;
        font-weight: 700;
      }

      .mobile-nav a.active {
        background: rgba(198,255,63,.14);
        color: var(--color-pitch);
      }

      .mobile-nav .mobile-btn {
        margin-top: 10px;
        justify-content: center;
      }

      .notice-layout {
        grid-template-columns: 1fr;
      }

      .feature-grid {
        grid-template-columns: 1fr;
        grid-template-areas: "main" "side" "wide";
      }

      .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .faq-layout {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .faq-intro {
        position: static;
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }

      .section {
        padding-top: 64px;
        padding-bottom: 64px;
      }

      .section-title {
        font-size: 30px;
      }

      .page-hero {
        min-height: 340px;
      }

      .hero-content {
        padding: 60px 0 42px;
      }

      .page-hero h1 {
        font-size: 36px;
        line-height: 1.2;
      }

      .hero-lead {
        font-size: 17px;
      }

      .pinned-card {
        padding: 28px 22px;
      }

      .pinned-card h3 {
        font-size: 23px;
      }

      .feature-grid {
        grid-template-columns: 1fr;
      }

      .feature-cover {
        height: 190px;
      }

      .process-grid {
        grid-template-columns: 1fr;
      }

      .process-item {
        padding: 22px;
      }

      .faq-a-inner {
        padding-left: 22px;
      }

      .cta-band {
        flex-direction: column;
        align-items: flex-start;
        padding: 32px 24px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .brand-main {
        font-size: 18px;
      }

      .brand-sub {
        font-size: 11px;
        padding: 3px 7px;
      }

      .page-hero h1 {
        font-size: 31px;
      }

      .cta-left h2 {
        font-size: 23px;
      }

      .cta-actions .btn {
        width: 100%;
      }

      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

/* roulang page: category4 */
:root {
      --color-pitch: #C6FF3F;
      --color-pitch-light: #DBFF80;
      --color-ink: #0C1210;
      --color-panel: #121A16;
      --color-canvas: #F4F7F2;
      --color-surface: #FFFFFF;
      --color-signal: #FF6A22;
      --color-mist: #E2E8DF;
      --color-text: #14201B;
      --color-text-invert: #F3F7F4;
      --radius-lg: 18px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --shadow-card: 0 1px 2px rgba(16,24,20,.06), 0 4px 16px rgba(16,24,20,.05);
      --shadow-hover: 0 12px 32px rgba(16,24,20,.12);
      --font-system: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-system);
      background: var(--color-canvas);
      color: var(--color-text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    button,
    input {
      font-family: inherit;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }
    .section {
      padding: 96px 0;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--color-ink);
      background: rgba(198, 255, 63, .18);
      border: 1px solid rgba(198, 255, 63, .55);
      padding: 7px 14px;
      border-radius: 999px;
      margin-bottom: 16px;
    }
    .eyebrow-dark {
      color: var(--color-pitch);
      background: rgba(198, 255, 63, .1);
      border: 1px solid rgba(198, 255, 63, .32);
    }
    .section-head {
      margin-bottom: 48px;
    }
    .section-head h2,
    .feature-copy h2 {
      font-size: 38px;
      line-height: 1.2;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--color-ink);
      margin: 4px 0 16px;
    }
    .section-head p,
    .feature-copy p {
      max-width: 720px;
      font-size: 17px;
      color: #52605A;
      margin: 0;
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      height: 74px;
      background: rgba(12, 18, 16, .86);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(255, 255, 255, .08);
    }
    .header-inner {
      height: 74px;
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand-symbol {
      width: 42px;
      height: 42px;
      border-radius: 13px;
      background: var(--color-pitch);
      color: var(--color-ink);
      font-size: 24px;
      font-weight: 900;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 0 4px rgba(198, 255, 63, .1);
    }
    .brand-text {
      display: inline-flex;
      flex-direction: column;
      line-height: 1.2;
    }
    .brand-main {
      font-size: 19px;
      font-weight: 900;
      letter-spacing: -.02em;
      color: #FFFFFF;
    }
    .brand-sub {
      font-size: 12px;
      font-weight: 700;
      color: var(--color-pitch);
      letter-spacing: .06em;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      overflow-x: auto;
      scrollbar-width: none;
    }
    .nav-links::-webkit-scrollbar {
      display: none;
    }
    .nav-links a {
      color: rgba(255, 255, 255, .72);
      font-size: 15px;
      font-weight: 600;
      line-height: 1.2;
      padding: 10px 16px;
      border-radius: 999px;
      white-space: nowrap;
      transition: background .16s ease, color .16s ease;
    }
    .nav-links a:hover {
      color: #FFFFFF;
      background: rgba(255, 255, 255, .08);
    }
    .nav-links a.active {
      color: var(--color-ink);
      background: var(--color-pitch);
      font-weight: 800;
    }
    .header-actions {
      margin-left: auto;
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }
    .header-search {
      width: 220px;
      height: 42px;
      display: flex;
      align-items: center;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: 999px;
      padding: 0 14px;
      transition: border-color .16s ease, background .16s ease;
    }
    .header-search:focus-within {
      border-color: rgba(198, 255, 63, .55);
      background: rgba(255, 255, 255, .14);
    }
    .header-search svg {
      width: 16px;
      height: 16px;
      stroke: rgba(255, 255, 255, .72);
      margin-right: 8px;
      flex-shrink: 0;
    }
    .header-search input {
      width: 100%;
      background: transparent;
      border: 0;
      outline: 0;
      color: #fff;
      font-size: 14px;
    }
    .header-search input::placeholder {
      color: rgba(255, 255, 255, .45);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-sm);
      height: 48px;
      padding: 0 24px;
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 800;
      cursor: pointer;
      text-decoration: none;
      transition: transform .16s ease, background .16s ease, box-shadow .16s ease, color .16s ease, border-color .16s ease;
    }
    .btn-primary {
      background: var(--color-pitch);
      color: var(--color-ink);
    }
    .btn-primary:hover {
      background: var(--color-pitch-light);
      transform: translateY(-1px);
      box-shadow: 0 10px 24px rgba(198, 255, 63, .22);
    }
    .btn-primary:active {
      transform: translateY(0);
    }
    .btn-ghost {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, .28);
      color: #FFFFFF;
    }
    .btn-ghost:hover {
      background: rgba(255, 255, 255, .08);
      border-color: rgba(255, 255, 255, .45);
    }
    .btn-line {
      background: transparent;
      border-color: var(--color-mist);
      color: var(--color-text);
    }
    .btn-line:hover {
      border-color: var(--color-pitch);
      background: rgba(198, 255, 63, .08);
      transform: translateY(-1px);
    }
    .btn-lg {
      height: 56px;
      padding: 0 32px;
      font-size: 16px;
      border-radius: 13px;
    }
    .btn-header {
      height: 42px;
      padding: 0 18px;
      font-size: 14px;
      border-radius: 999px;
    }
    .btn-header:focus-visible,
    .btn:focus-visible,
    .nav-links a:focus-visible,
    .faq-q:focus-visible {
      outline: 3px solid rgba(198, 255, 63, .45);
      outline-offset: 2px;
    }
    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .1);
      border-radius: 12px;
      cursor: pointer;
      margin-left: auto;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      transition: background .16s ease;
    }
    .nav-toggle:hover {
      background: rgba(255, 255, 255, .12);
    }
    .nav-toggle span {
      width: 18px;
      height: 2px;
      background: #FFFFFF;
      border-radius: 4px;
      transition: transform .2s ease, opacity .2s ease;
    }
    .nav-toggle.is-open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle.is-open span:nth-child(2) {
      opacity: 0;
    }
    .nav-toggle.is-open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
    .mobile-nav {
      display: none;
      background: var(--color-ink);
      border-bottom: 1px solid rgba(255, 255, 255, .08);
      padding: 18px 0 28px;
    }
    .mobile-nav.show {
      display: block;
    }
    .mobile-nav .mobile-search {
      display: flex;
      align-items: center;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .1);
      border-radius: 999px;
      height: 44px;
      padding: 0 14px;
      margin-bottom: 18px;
    }
    .mobile-nav .mobile-search input {
      background: transparent;
      border: 0;
      outline: 0;
      color: #fff;
      width: 100%;
    }
    .mobile-nav .mobile-search input::placeholder {
      color: rgba(255, 255, 255, .5);
    }
    .mobile-nav-links {
      display: grid;
      gap: 6px;
    }
    .mobile-nav-links a {
      display: block;
      padding: 14px 16px;
      border-radius: 12px;
      color: rgba(255, 255, 255, .82);
      font-size: 16px;
      font-weight: 600;
      background: rgba(255, 255, 255, .04);
      border: 1px solid rgba(255, 255, 255, .06);
    }
    .mobile-nav-links a.active {
      background: var(--color-pitch);
      color: var(--color-ink);
    }
    .mobile-nav .btn-header {
      margin-top: 14px;
      width: 100%;
    }

    /* Hero */
    .page-hero {
      position: relative;
      color: #FFFFFF;
      background: linear-gradient(100deg, rgba(12, 18, 16, .98) 15%, rgba(12, 18, 16, .85) 60%, rgba(198, 255, 63, .04) 100%), url("/assets/images/backpic/back-3.webp") center center / cover no-repeat;
      padding: 104px 0 92px;
      overflow: hidden;
    }
    .page-hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 1px;
      background: linear-gradient(90deg, rgba(198, 255, 63, .55), transparent 70%);
    }
    .page-hero .container {
      position: relative;
      z-index: 2;
    }
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: rgba(255, 255, 255, .62);
      margin-bottom: 24px;
    }
    .breadcrumb a {
      color: rgba(255, 255, 255, .72);
      transition: color .16s ease;
    }
    .breadcrumb a:hover {
      color: var(--color-pitch);
    }
    .breadcrumb .sep {
      color: rgba(255, 255, 255, .3);
    }
    .breadcrumb .current {
      color: var(--color-pitch);
      font-weight: 600;
    }
    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--color-pitch);
      background: rgba(198, 255, 63, .1);
      border: 1px solid rgba(198, 255, 63, .34);
      border-radius: 999px;
      padding: 8px 16px;
      margin-bottom: 22px;
    }
    .page-hero h1 {
      font-size: 54px;
      line-height: 1.08;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: #FFFFFF;
      margin: 0 0 18px;
    }
    .page-hero h1 .accent-text {
      color: var(--color-pitch);
      white-space: nowrap;
    }
    .hero-desc {
      max-width: 720px;
      font-size: 18px;
      line-height: 1.7;
      color: rgba(255, 255, 255, .76);
      margin: 0 0 34px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 46px;
    }
    .hero-points {
      list-style: none;
      display: flex;
      flex-wrap: wrap;
      gap: 12px 28px;
      padding: 0;
      color: rgba(255, 255, 255, .68);
      font-size: 14px;
      font-weight: 500;
    }
    .hero-points li {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .hero-points span {
      color: var(--color-pitch);
      font-weight: 900;
    }

    /* Stats */
    .section-stats {
      background: var(--color-surface);
      padding: 84px 0;
      border-bottom: 1px solid var(--color-mist);
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .stat-card {
      background: var(--color-canvas);
      border: 1px solid var(--color-mist);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
    }
    .stat-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--color-pitch);
    }
    .stat-label {
      display: block;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
      color: #7B8B82;
      text-transform: uppercase;
      margin-bottom: 16px;
    }
    .stat-card strong {
      display: block;
      font-size: 34px;
      line-height: 1.1;
      color: var(--color-ink);
      font-weight: 900;
      margin-bottom: 12px;
    }
    .stat-card p {
      font-size: 15px;
      color: #5A6A61;
      line-height: 1.6;
      margin: 0;
    }
    .stat-card-dark {
      background: var(--color-ink);
      border-color: var(--color-ink);
    }
    .stat-card-dark .stat-label {
      color: var(--color-pitch);
    }
    .stat-card-dark strong {
      color: #FFFFFF;
    }
    .stat-card-dark p {
      color: rgba(255, 255, 255, .62);
    }

    /* Coverage */
    .section-coverage {
      background: var(--color-canvas);
    }
    .section-head-split {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 42px;
    }
    .section-head-split h2 {
      margin-bottom: 8px;
    }
    .sports-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-auto-rows: 250px;
      gap: 20px;
    }
    .sport-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--color-panel);
      box-shadow: var(--shadow-card);
      min-height: 0;
    }
    .sport-card.featured {
      grid-column: span 2;
      grid-row: span 2;
    }
    .sport-card img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .3s ease;
    }
    .sport-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(12, 18, 16, .05) 30%, rgba(12, 18, 16, .86) 100%);
      transition: background .25s ease;
    }
    .sport-card:hover::after {
      background: linear-gradient(180deg, rgba(12, 18, 16, .03) 30%, rgba(12, 18, 16, .92) 100%);
    }
    .sport-card:hover img {
      transform: scale(1.02);
    }
    .sport-content {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 3;
      padding: 22px 24px;
      color: #FFFFFF;
    }
    .sport-card.featured .sport-content {
      padding: 38px;
    }
    .sport-tag {
      display: inline-flex;
      background: var(--color-pitch);
      color: var(--color-ink);
      border-radius: 999px;
      font-size: 12px;
      font-weight: 800;
      line-height: 1;
      padding: 8px 12px;
      margin-bottom: 12px;
    }
    .sport-content h3 {
      font-size: 22px;
      line-height: 1.25;
      color: #FFFFFF;
      font-weight: 800;
      margin: 0 0 8px;
    }
    .sport-card.featured .sport-content h3 {
      font-size: 32px;
      line-height: 1.16;
    }
    .sport-content p {
      color: rgba(255, 255, 255, .72);
      font-size: 14px;
      line-height: 1.5;
      margin: 0;
      max-width: 520px;
    }

    /* Flow */
    .section-flow {
      background: var(--color-ink);
      padding: 96px 0;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
    }
    .section-flow::before {
      content: "";
      position: absolute;
      left: -10%;
      right: -10%;
      top: -80px;
      height: 200px;
      background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
      background-size: 44px 44px;
      pointer-events: none;
    }
    .flow-section-head {
      margin-bottom: 54px;
    }
    .flow-section-head h2 {
      font-size: 38px;
      color: #FFFFFF;
      line-height: 1.2;
      font-weight: 900;
      margin: 4px 0 14px;
    }
    .flow-section-head p {
      color: rgba(255, 255, 255, .6);
      max-width: 680px;
      font-size: 17px;
    }
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .flow-step {
      background: rgba(255, 255, 255, .035);
      border: 1px solid rgba(255, 255, 255, .09);
      border-radius: var(--radius-lg);
      padding: 30px 26px;
      position: relative;
      transition: border-color .2s ease, background .2s ease, transform .2s ease;
    }
    .flow-step:hover {
      border-color: rgba(198, 255, 63, .45);
      background: rgba(198, 255, 63, .04);
      transform: translateY(-4px);
    }
    .flow-num {
      display: inline-flex;
      font-size: 44px;
      line-height: 1;
      font-weight: 900;
      color: var(--color-pitch);
      margin-bottom: 42px;
      font-feature-settings: "tnum";
    }
    .flow-step h3 {
      font-size: 19px;
      color: #FFFFFF;
      font-weight: 800;
      margin: 0 0 10px;
    }
    .flow-step p {
      color: rgba(255, 255, 255, .58);
      font-size: 14px;
      margin: 0;
      line-height: 1.7;
    }

    /* Feature */
    .section-modules {
      background: var(--color-surface);
      padding: 96px 0;
    }
    .feature-grid {
      display: grid;
      grid-template-columns: 1.02fr .98fr;
      gap: 64px;
      align-items: center;
      margin-bottom: 64px;
    }
    .feature-copy .eyebrow {
      margin-bottom: 16px;
    }
    .feature-copy h2 {
      font-size: 36px;
      line-height: 1.2;
      font-weight: 900;
      color: var(--color-ink);
      margin: 4px 0 18px;
      letter-spacing: -0.02em;
    }
    .feature-list {
      list-style: none;
      padding: 0;
      margin: 28px 0 36px;
      display: grid;
      gap: 18px;
    }
    .feature-list li {
      display: grid;
      grid-template-columns: 28px 1fr;
      gap: 10px;
    }
    .feature-list li i {
      width: 28px;
      height: 28px;
      border-radius: 9px;
      background: var(--color-pitch);
      color: var(--color-ink);
      font-style: normal;
      font-weight: 900;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-top: 3px;
    }
    .feature-list strong {
      display: block;
      font-size: 17px;
      font-weight: 800;
      color: var(--color-ink);
      margin-bottom: 2px;
    }
    .feature-list p {
      color: #5C6B62;
      font-size: 15px;
      line-height: 1.6;
      margin: 0;
    }
    .feature-visual {
      position: relative;
    }
    .feature-visual img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 22px;
      box-shadow: var(--shadow-hover);
      border: 1px solid var(--color-mist);
    }
    .visual-note {
      position: absolute;
      left: -22px;
      bottom: 28px;
      background: var(--color-ink);
      color: #FFFFFF;
      padding: 12px 16px;
      border-radius: 14px;
      font-size: 13px;
      font-weight: 700;
      border-left: 3px solid var(--color-pitch);
      box-shadow: var(--shadow-card);
    }
    .visual-note span {
      color: var(--color-pitch);
    }
    .hot-entries {
      border-top: 1px solid var(--color-mist);
      padding-top: 52px;
    }
    .hot-heading {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 24px;
    }
    .hot-heading h3 {
      font-size: 22px;
      font-weight: 900;
      color: var(--color-ink);
      margin: 0;
    }
    .hot-heading a {
      font-size: 14px;
      font-weight: 700;
      color: var(--color-text);
      border-bottom: 2px solid var(--color-pitch);
      padding-bottom: 3px;
    }
    .hot-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .hot-card {
      display: block;
      background: var(--color-canvas);
      border: 1px solid var(--color-mist);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
    }
    .hot-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--color-pitch);
    }
    .hot-card img {
      width: 100%;
      height: 150px;
      object-fit: cover;
    }
    .hot-card-info {
      padding: 16px 18px 18px;
    }
    .hot-card-info span {
      display: inline-block;
      background: var(--color-ink);
      color: #FFFFFF;
      border-radius: 999px;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: .04em;
      padding: 6px 10px;
      margin-bottom: 8px;
    }
    .hot-card-info strong {
      display: block;
      font-size: 16px;
      font-weight: 800;
      color: var(--color-ink);
      line-height: 1.4;
    }

    /* FAQ */
    .section-faq {
      background: var(--color-canvas);
      padding: 96px 0;
    }
    .faq-grid {
      display: grid;
      grid-template-columns: .42fr .58fr;
      gap: 72px;
      align-items: start;
    }
    .faq-intro .eyebrow {
      margin-bottom: 16px;
    }
    .faq-intro h2 {
      font-size: 36px;
      line-height: 1.24;
      font-weight: 900;
      color: var(--color-ink);
      margin: 0 0 20px;
      letter-spacing: -0.02em;
    }
    .faq-intro p {
      color: #5D6B63;
      font-size: 16px;
      line-height: 1.7;
      margin: 0;
    }
    .faq-intro .faq-contact-note {
      display: inline-flex;
      gap: 8px;
      align-items: center;
      margin-top: 26px;
      background: var(--color-surface);
      border: 1px solid var(--color-mist);
      border-radius: 12px;
      padding: 12px 18px;
      font-size: 14px;
      font-weight: 600;
      color: var(--color-text);
    }
    .faq-intro .faq-contact-note i {
      color: var(--color-signal);
      font-style: normal;
      font-size: 18px;
    }
    .faq-list {
      background: var(--color-surface);
      border-top: 1px solid var(--color-mist);
      border-bottom: 1px solid var(--color-mist);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }
    .faq-item {
      border-bottom: 1px solid var(--color-mist);
      transition: background .16s ease;
    }
    .faq-item:last-child {
      border-bottom: 0;
    }
    .faq-item.open {
      background: rgba(198, 255, 63, .07);
    }
    .faq-q {
      width: 100%;
      background: transparent;
      border: 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 22px 26px;
      text-align: left;
      cursor: pointer;
      color: var(--color-text);
      font-size: 16px;
      font-weight: 800;
      line-height: 1.4;
      transition: color .16s ease;
    }
    .faq-q:hover {
      color: var(--color-ink);
    }
    .faq-icon {
      position: relative;
      width: 30px;
      height: 30px;
      flex-shrink: 0;
      background: var(--color-pitch);
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--color-ink);
      border-radius: 3px;
      transition: transform .2s ease, opacity .2s ease;
    }
    .faq-icon::before {
      width: 12px;
      height: 2px;
    }
    .faq-icon::after {
      width: 2px;
      height: 12px;
    }
    .faq-item.open .faq-icon::after {
      opacity: 0;
      transform: rotate(90deg);
    }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .25s ease, padding .25s ease;
      padding: 0 26px;
    }
    .faq-item.open .faq-a {
      max-height: 360px;
      padding-bottom: 24px;
    }
    .faq-a p {
      color: #56675E;
      font-size: 15px;
      line-height: 1.8;
      margin: 0;
    }

    /* CTA */
    .cta-band {
      background: linear-gradient(105deg, rgba(12, 18, 16, .98) 30%, rgba(12, 18, 16, .82)), url("/assets/images/backpic/back-2.webp") center center / cover no-repeat;
      color: #FFFFFF;
      padding: 96px 0;
      position: relative;
      overflow: hidden;
    }
    .cta-band::after {
      content: "";
      position: absolute;
      right: -80px;
      top: -80px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(198, 255, 63, .16), transparent 68%);
      pointer-events: none;
    }
    .cta-wrapper {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 48px;
      align-items: center;
    }
    .cta-copy .eyebrow {
      margin-bottom: 16px;
    }
    .cta-copy h2 {
      font-size: 36px;
      line-height: 1.22;
      font-weight: 900;
      color: #FFFFFF;
      margin: 0 0 16px;
      letter-spacing: -0.02em;
    }
    .cta-copy h2 span {
      color: var(--color-pitch);
    }
    .cta-copy p {
      color: rgba(255, 255, 255, .62);
      max-width: 620px;
      font-size: 16px;
      line-height: 1.7;
      margin: 0 0 32px;
    }
    .cta-actions {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 18px;
    }
    .qr-mini {
      display: inline-flex;
      align-items: center;
      gap: 14px;
      background: rgba(255, 255, 255, .04);
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 14px;
      padding: 10px 14px;
    }
    .qr-mock {
      width: 54px;
      height: 54px;
      background-color: #FFFFFF;
      background-image: linear-gradient(90deg, transparent 38%, #0C1210 38%, #0C1210 46%, transparent 46%), linear-gradient(0deg, transparent 38%, #0C1210 38%, #0C1210 46%, transparent 46%), linear-gradient(90deg, transparent 70%, #0C1210 70%, #0C1210 78%, transparent 78%), linear-gradient(0deg, transparent 30%, #0C1210 30%, #0C1210 38%, transparent 38%);
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 8px;
      display: inline-block;
    }
    .qr-mini small {
      color: rgba(255, 255, 255, .7);
      font-size: 12px;
      line-height: 1.5;
      font-weight: 600;
      white-space: nowrap;
    }

    /* Footer */
    .site-footer {
      background: var(--color-ink);
      color: rgba(255, 255, 255, .72);
      padding: 72px 0 0;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
      gap: 48px;
      padding-bottom: 48px;
    }
    .footer-brand .brand-main {
      color: #FFFFFF;
    }
    .footer-description {
      max-width: 340px;
      color: rgba(255, 255, 255, .5);
      font-size: 14px;
      line-height: 1.7;
    }
    .footer-domain {
      display: inline-flex;
      margin-top: 12px;
      background: rgba(198, 255, 63, .1);
      border: 1px solid rgba(198, 255, 63, .2);
      color: var(--color-pitch);
      border-radius: 999px;
      padding: 8px 16px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .02em;
    }
    .footer-head {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      display: grid;
      gap: 10px;
    }
    .footer-links a {
      color: rgba(255, 255, 255, .58);
      font-size: 14px;
      transition: color .16s ease;
    }
    .footer-links a:hover {
      color: var(--color-pitch);
    }
    .footer-note {
      color: rgba(255, 255, 255, .48);
      font-size: 13px;
      line-height: 1.8;
      margin: 0;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .08);
      padding: 22px 0;
      font-size: 13px;
      color: rgba(255, 255, 255, .4);
    }

    @media (max-width: 1199px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .faq-grid {
        gap: 44px;
      }
    }
    @media (max-width: 1023px) {
      .section {
        padding: 72px 0;
      }
      .nav-links,
      .header-actions .header-search,
      .header-actions .btn-header {
        display: none;
      }
      .nav-toggle {
        display: inline-flex;
        margin-left: auto;
      }
      .page-hero h1 {
        font-size: 42px;
      }
      .sports-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 230px;
      }
      .sport-card.featured {
        grid-column: span 2;
        grid-row: span 1;
      }
      .sport-card.featured .sport-content h3 {
        font-size: 26px;
      }
      .feature-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .feature-visual img {
        aspect-ratio: 16 / 10;
      }
      .faq-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .faq-intro {
        max-width: 720px;
      }
      .cta-wrapper {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }
      .footer-brand {
        grid-column: 1 / -1;
      }
      .footer-description {
        max-width: 100%;
      }
    }
    @media (max-width: 768px) {
      .container {
        padding: 0 20px;
      }
      .section-head-split {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }
      .hot-grid {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 560px) {
      .page-hero {
        padding: 76px 0 70px;
      }
      .page-hero h1 {
        font-size: 34px;
      }
      .hero-desc {
        font-size: 16px;
      }
      .hero-actions .btn-lg {
        width: 100%;
      }
      .stats-grid,
      .flow-grid {
        grid-template-columns: 1fr;
      }
      .sports-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 220px;
      }
      .sport-card.featured {
        grid-column: auto;
        grid-row: auto;
      }
      .sport-card.featured .sport-content {
        padding: 24px;
      }
      .sport-card.featured .sport-content h3 {
        font-size: 22px;
      }
      .sport-content p {
        display: none;
      }
      .section-flow h2,
      .feature-copy h2,
      .faq-intro h2,
      .cta-copy h2,
      .section-head h2 {
        font-size: 29px;
        line-height: 1.24;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer-brand {
        grid-column: auto;
      }
      .cta-actions .btn-lg {
        width: 100%;
      }
      .qr-mini {
        width: 100%;
        justify-content: center;
      }
    }