/* roulang page: index */
/* ===== Design Tokens ===== */
:root {
  --color-primary: #14665C;
  --color-primary-light: #1C7A6E;
  --color-accent: #E89547;
  --color-accent-dark: #D98324;
  --color-bg-dark: #10251F;
  --color-bg-light: #F5F6F2;
  --color-white: #FFFFFF;
  --color-text: #22312D;
  --color-text-secondary: #5D6B66;
  --color-text-muted: #8A9691;
  --color-border: #DCE3DD;
  --color-success: #2F9E62;
  --color-warning: #D98324;
  --color-error: #CF4444;
  --shadow-color: rgba(16, 37, 31, .08);
  --shadow-hover: rgba(16, 37, 31, .12);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-img: 14px;
  --radius-badge: 999px;
  --font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "Helvetica Neue", sans-serif;
}

/* ===== Base Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg-light);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 1rem; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 92px 0; }
@media (max-width: 767px) {
  .section-pad { padding: 56px 0; }
  .container { padding: 0 16px; }
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5 { line-height: 1.3; color: var(--color-text); }
.section-title { font-size: 30px; font-weight: 700; color: var(--color-text); }
.section-sub { font-size: 18px; font-weight: 400; color: var(--color-text-secondary); margin-top: 8px; }
.section-head { margin-bottom: 48px; }
.section-head.center { text-align: center; }
.section-head .section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--color-accent-dark);
  background: rgba(232, 149, 71, .1);
  border-radius: var(--radius-badge);
  padding: 4px 16px;
  margin-bottom: 12px;
}
@media (max-width: 767px) {
  .section-title { font-size: 24px; }
  .section-sub { font-size: 16px; }
  .section-head { margin-bottom: 32px; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  transition: all .25s ease;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn-accent {
  background: var(--color-accent);
  color: var(--color-bg-dark);
}
.btn-accent:hover {
  background: #F09E52;
  box-shadow: 0 0 0 4px rgba(232, 149, 71, .22);
  color: var(--color-bg-dark);
  transform: translateY(-1px);
}
.btn-accent:active { transform: translateY(1px); }
.btn-outline {
  background: var(--color-white);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover {
  background: rgba(20, 102, 92, .06);
  color: var(--color-primary);
  border-color: var(--color-primary-light);
}
.btn-ghost {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, .65);
  color: rgba(255, 255, 255, .9);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, .15);
  border-color: #fff;
  color: #fff;
}
.btn-lg { height: 56px; padding: 0 40px; font-size: 16px; }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn:focus-visible {
  outline: 3px solid rgba(232, 149, 71, .4);
  outline-offset: 2px;
}
@media (max-width: 767px) {
  .btn { min-height: 46px; }
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background .35s ease, box-shadow .35s ease;
  background: transparent;
}
.site-header.scrolled {
  background: rgba(16, 37, 31, .96);
  box-shadow: 0 4px 12px rgba(16, 37, 31, .15);
  backdrop-filter: blur(8px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.brand-icon svg { width: 28px; height: 28px; }
.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .01em;
  white-space: nowrap;
}
.brand-text .brand-en { font-family: var(--font-num); font-weight: 700; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, .85);
  padding: 8px 2px;
  transition: color .25s;
}
.nav-link:hover { color: var(--color-accent); }
.nav-link.active { color: #fff; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: 32px;
  flex-shrink: 0;
}
.activity-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .22);
  color: rgba(255, 255, 255, .95);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: var(--radius-badge);
}
.activity-badge .dot {
  width: 6px; height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  display: inline-block;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(.8); }
}
.mobile-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  font-size: 20px;
  flex-shrink: 0;
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  background: var(--color-bg-dark);
  z-index: 999;
  padding: 96px 24px 40px;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}
.mobile-drawer.open { display: flex; }
.mobile-drawer .drawer-link {
  font-size: 20px;
  font-weight: 600;
  color: rgba(255, 255, 255, .9);
  padding: 16px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.mobile-drawer .drawer-link.active { color: var(--color-accent); }
.mobile-drawer .drawer-cta { margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.drawer-close {
  position: absolute;
  top: 20px; right: 20px;
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 1023px) {
  .main-nav, .nav-right { display: none; }
  .mobile-toggle { display: flex; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  z-index: 1;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(16, 37, 31, .92) 30%, rgba(16, 37, 31, .55) 70%, rgba(16, 37, 31, .4) 100%);
  z-index: 2;
}
.hero-content {
  position: relative;
  z-index: 3;
  color: #fff;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 120px 24px 80px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(232, 149, 71, .7);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  padding: 6px 18px;
  border-radius: var(--radius-badge);
  background: rgba(232, 149, 71, .08);
  margin-bottom: 28px;
}
.hero h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  max-width: 720px;
  margin-bottom: 20px;
  letter-spacing: .01em;
}
.hero-sub {
  font-size: 17px;
  color: rgba(255, 255, 255, .85);
  max-width: 520px;
  line-height: 1.6;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.countdown-card {
  position: absolute;
  right: 48px;
  bottom: 120px;
  z-index: 4;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  backdrop-filter: blur(6px);
  color: #fff;
  min-width: 280px;
}
.countdown-label {
  font-size: 13px;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 12px;
  letter-spacing: .03em;
}
.countdown-numbers {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: rgba(255, 255, 255, .8);
}
.cd-num {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  background: rgba(255, 255, 255, .1);
  border-radius: 8px;
  padding: 6px 10px;
  min-width: 44px;
  text-align: center;
  color: #fff;
}
.countdown-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 13px;
  color: rgba(255, 255, 255, .75);
}
.countdown-status .status-dot {
  width: 6px; height: 6px;
  background: var(--color-success);
  border-radius: 50%;
}
.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  width: 28px; height: 44px;
  border: 2px solid rgba(255, 255, 255, .5);
  border-radius: 16px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 8px;
  animation: scroll-hint 2s infinite;
}
.scroll-hint::before {
  content: "";
  width: 4px; height: 8px;
  background: rgba(255, 255, 255, .6);
  border-radius: 2px;
}
@keyframes scroll-hint {
  0%, 100% { opacity: .6; }
  50% { opacity: 1; transform: translateX(-50%) translateY(4px); }
}
@media (max-width: 1023px) {
  .countdown-card {
    position: relative;
    right: auto;
    bottom: auto;
    margin: 0 24px -60px;
    transform: none;
    min-width: 0;
  }
  .hero-content { padding-bottom: 40px; }
}
@media (max-width: 767px) {
  .hero { min-height: 70vh; }
  .hero-content { padding-top: 100px; padding-bottom: 32px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .countdown-card {
    margin: 16px 16px -80px;
    padding: 16px 20px;
    min-width: 0;
  }
  .countdown-numbers { justify-content: center; }
  .scroll-hint { display: none; }
}

/* ===== Stats Bar ===== */
.stats-bar {
  position: relative;
  z-index: 5;
  background: var(--color-white);
  border-radius: 20px;
  box-shadow: 0 4px 20px var(--shadow-color);
  margin: -50px auto 0;
  max-width: 1120px;
  padding: 32px 0;
}
.stats-bar .stat-item {
  text-align: center;
  padding: 16px 8px;
  position: relative;
}
.stats-bar .stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0; top: 20%;
  height: 60%;
  width: 1px;
  background: var(--color-border);
}
.stat-num {
  font-family: var(--font-num);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}
.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 6px;
}
.stats-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-muted);
  padding-top: 8px;
  border-top: 1px dashed var(--color-border);
  margin: 8px 24px 0;
}
@media (max-width: 767px) {
  .stats-bar { margin: -30px 8px 0; }
  .stat-num { font-size: 24px; }
  .stats-bar .stat-item:nth-child(2)::after { display: none; }
}

/* ===== Steps / 玩法介绍 ===== */
.steps-section { background: var(--color-white); }
.step-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  height: 100%;
  position: relative;
  transition: all .3s ease;
}
.step-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 12px 24px var(--shadow-hover);
  transform: translateY(-4px);
}
.step-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  margin-bottom: 20px;
}
.step-card:first-child .step-num {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg-dark);
}
.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}
.step-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  min-height: 72px;
}
.step-tag {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 500;
  background: rgba(20, 102, 92, .08);
  color: var(--color-primary);
  border-radius: var(--radius-badge);
  padding: 4px 14px;
}
.step-tag.optional {
  background: rgba(138, 150, 145, .12);
  color: var(--color-text-muted);
}
.head-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.head-link:hover { color: var(--color-accent-dark); }
@media (max-width: 767px) {
  .step-card { margin-bottom: 16px; }
  .step-card p { min-height: 0; }
}

/* ===== Rewards ===== */
.rewards-section { background: var(--color-bg-light); }
.reward-row {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--color-white);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  padding: 28px 32px;
  margin-bottom: 16px;
  transition: all .3s ease;
}
.reward-row:hover {
  background: var(--color-white);
  box-shadow: 0 12px 24px var(--shadow-hover);
  transform: scale(1.01);
}
.reward-badge {
  width: 64px; height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 26px;
  background: rgba(138, 150, 145, .15);
  color: var(--color-text-muted);
}
.reward-badge.silver {
  background: linear-gradient(145deg, #E8ECEF, #CBD2D8);
  color: #5F6F7E;
}
.reward-badge.gold {
  background: linear-gradient(145deg, #FCE4B3, #F2B35C);
  color: #8C5A14;
}
.reward-info { flex: 1; min-width: 160px; }
.reward-info .reward-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}
.reward-info .reward-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 4px;
}
.reward-progress {
  flex: 1;
  max-width: 220px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.progress-track {
  flex: 1;
  height: 6px;
  background: #E5EBE6;
  border-radius: var(--radius-badge);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: var(--radius-badge);
  background: linear-gradient(to right, var(--color-primary) 65%, var(--color-accent));
}
.reward-status {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-badge);
  white-space: nowrap;
}
.reward-status.can { background: var(--color-accent); color: var(--color-bg-dark); }
.reward-status.done { background: var(--color-success); color: #fff; }
.reward-status.locked { background: rgba(138, 150, 145, .15); color: var(--color-text-muted); }
.rewards-note {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 20px;
}
@media (max-width: 767px) {
  .reward-row { flex-wrap: wrap; padding: 20px; gap: 16px; }
  .reward-progress { max-width: 100%; width: 100%; }
}

/* ===== Missions / 任务进度 ===== */
.missions-section {
  background: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
}
.missions-section .section-title,
.missions-section .section-sub { color: rgba(255, 255, 255, .95); }
.missions-section .section-sub { color: rgba(255, 255, 255, .7); }
.mission-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .04));
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-card);
  padding: 28px;
  min-height: 200px;
  position: relative;
  transition: all .3s ease;
}
.mission-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .25);
}
.mission-card.completed { border-color: rgba(47, 158, 98, .5); }
.mission-card.locked { opacity: .65; }
.mission-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.mission-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .8);
}
.mission-status .state-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  background: rgba(255, 255, 255, .12);
}
.mission-status.running .state-icon {
  background: var(--color-accent);
  animation: pulse-dot 1.5s infinite;
}
.mission-status.done .state-icon { background: var(--color-success); }
.mission-status.locked .state-icon { background: rgba(255, 255, 255, .2); }
.mission-icon {
  width: 36px; height: 36px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  font-size: 17px;
}
.mission-name {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.mission-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 16px;
  line-height: 1.5;
}
.mission-progress {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mission-progress .progress-track {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, .15);
}
.mission-progress .progress-fill {
  background: var(--color-accent);
}
.mission-progress.done .progress-fill { background: var(--color-success); }
.mission-pct {
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  color: rgba(255, 255, 255, .85);
}
.mission-complete-banner {
  margin-top: 24px;
  padding: 14px 24px;
  background: rgba(232, 149, 71, .15);
  border: 1px solid rgba(232, 149, 71, .4);
  border-radius: var(--radius-btn);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
  text-align: center;
}
@media (max-width: 767px) {
  .mission-card { min-height: 180px; margin-bottom: 16px; }
}

/* ===== News / 最新资讯 ===== */
.news-section { background: var(--color-white); }
.news-card-wrap { margin-bottom: 24px; }
.news-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all .3s ease;
}
.news-card:hover {
  box-shadow: 0 12px 24px var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(20, 102, 92, .3);
}
.news-cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(20, 102, 92, .08);
  border-radius: var(--radius-badge);
  padding: 4px 14px;
  align-self: flex-start;
  margin-bottom: 16px;
}
.news-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 50px;
}
.news-card:hover .news-title { color: var(--color-primary); }
.news-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 20px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}
.news-arrow {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
}
.news-card:hover .news-arrow { color: var(--color-accent-dark); }
.empty-state {
  text-align: center;
  padding: 72px 32px;
  background: rgba(245, 246, 242, .6);
  border-radius: var(--radius-card);
  border: 1px dashed var(--color-border);
}
.empty-state .empty-icon {
  font-size: 40px;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 16px;
}
.empty-state p {
  font-size: 16px;
  color: var(--color-text-secondary);
}
@media (max-width: 767px) {
  .news-card { padding: 20px; }
}

/* ===== Capability / 产品能力 ===== */
.capability-section { background: var(--color-bg-light); }
.capability-row {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 88px;
}
.capability-row:last-child { margin-bottom: 0; }
.capability-row.reverse { flex-direction: row-reverse; }
.capability-visual {
  flex: 1;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-img);
  box-shadow: 0 16px 40px var(--shadow-color);
}
.capability-visual img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
}
.capability-visual .cap-badge {
  position: absolute;
  left: 16px; bottom: 16px;
  background: rgba(16, 37, 31, .8);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-badge);
  backdrop-filter: blur(4px);
}
.capability-text { flex: 1; }
.cap-label {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 12px;
  letter-spacing: .03em;
}
.capability-text h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.3;
}
.capability-text > p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 480px;
}
.cap-points { margin-bottom: 28px; }
.cap-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.6;
}
.cap-points li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}
@media (max-width: 1023px) {
  .capability-row { gap: 32px; }
}
@media (max-width: 767px) {
  .capability-row {
    flex-direction: column !important;
    gap: 24px;
    margin-bottom: 48px;
  }
  .capability-text h3 { font-size: 20px; }
}

/* ===== FAQ ===== */
.faq-section { background: var(--color-white); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .25s;
}
.faq-item.active { border-color: var(--color-primary); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  text-align: left;
  min-height: 48px;
  transition: background .2s;
}
.faq-q:hover { background: rgba(20, 102, 92, .03); }
.faq-q .faq-icon {
  font-size: 18px;
  color: var(--color-text-muted);
  transition: transform .25s ease;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.active .faq-q .faq-icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
}
.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
@media (max-width: 767px) {
  .faq-q { padding: 16px 20px; font-size: 16px; }
}

/* ===== CTA Zone ===== */
.cta-section {
  position: relative;
  padding: 96px 0;
  background: var(--color-bg-dark);
  overflow: hidden;
  text-align: center;
}
.cta-section .cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: .35;
  z-index: 1;
}
.cta-section .cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(16, 37, 31, .82);
  z-index: 2;
}
.cta-inner { position: relative; z-index: 3; max-width: 700px; margin: 0 auto; }
.cta-tag {
  display: inline-block;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .2);
  color: rgba(255, 255, 255, .9);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 18px;
  border-radius: var(--radius-badge);
  margin-bottom: 20px;
}
.cta-inner h2 {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-inner .btn-lg { height: 56px; padding: 0 48px; }
.cta-note {
  margin-top: 16px;
  font-size: 12px;
  color: rgba(255, 255, 255, .45);
}
@media (max-width: 767px) {
  .cta-section { padding: 56px 0; }
  .cta-inner h2 { font-size: 24px; }
  .cta-inner .btn-lg { width: 100%; }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, .8);
  padding: 72px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand-text { color: #fff; }
.footer-brand p {
  font-size: 12px;
  color: rgba(255, 255, 255, .5);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  transition: color .25s;
}
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 14px;
}
.footer-contact li i {
  color: var(--color-accent);
  width: 18px;
  margin-top: 4px;
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
  flex-wrap: wrap;
}
@media (max-width: 1023px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; padding: 20px 0; }
}

/* ===== Section Divider ===== */
.section-divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ===== Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Print ===== */
@media print {
  .site-header { display: none !important; }
  .cta-section, .site-footer { background: var(--color-bg-light) !important; color: var(--color-text) !important; }
}

/* roulang page: category1 */
:root {
  --color-primary: #14665C;
  --color-primary-dark: #0F4E46;
  --color-accent: #E89547;
  --color-accent-dark: #D98324;
  --color-bg-dark: #10251F;
  --color-bg-light: #F5F6F2;
  --color-white: #FFFFFF;
  --color-text: #22312D;
  --color-text-secondary: #5D6B66;
  --color-text-muted: #8A9691;
  --color-border: #DCE3DD;
  --color-success: #2F9E62;
  --shadow-card: 0 2px 6px rgba(16,37,31,.06);
  --shadow-card-hover: 0 12px 24px rgba(16,37,31,.12);
  --shadow-nav: 0 4px 12px rgba(16,37,31,.10);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-img: 14px;
  --radius-badge: 999px;
  --transition: all .25s ease;
  --container-max: 1200px;
  --header-height: 72px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--color-text);
  background:var(--color-bg-light);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--color-primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--color-accent)}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px;width:100%}
h1,h2,h3,h4,h5,h6{line-height:1.3;margin:0;font-weight:700}
p{margin:0}
.fas{-webkit-font-smoothing:antialiased}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--header-height);
  z-index:100;
  display:flex;
  align-items:center;
  background:linear-gradient(180deg,rgba(16,37,31,.82),rgba(16,37,31,.55));
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:var(--color-bg-dark);
  box-shadow:var(--shadow-nav);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:var(--header-height);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:32px;height:32px;
  color:var(--color-accent);
  display:flex;align-items:center;justify-content:center;
}
.brand-icon svg{width:32px;height:32px}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-en{
  font-family:Inter,"Helvetica Neue",sans-serif;
  font-weight:800;
  color:var(--color-accent);
  letter-spacing:-.02em;
}
.main-nav{display:flex;align-items:center;gap:30px}
.nav-link{
  font-size:15px;
  color:rgba(255,255,255,.85);
  font-weight:500;
  padding:8px 2px;
  position:relative;
  transition:color .25s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--color-accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--color-accent)}
.nav-link.active{color:#fff}
.nav-link.active::after{transform:scaleX(1)}
.header-action{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
}
.activity-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:rgba(255,255,255,.92);
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.15);
  padding:5px 14px;
  border-radius:var(--radius-badge);
  white-space:nowrap;
}
.activity-badge i{
  font-size:9px;
  color:#45D68A;
  animation:pulse 1.8s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.5;transform:scale(.85)}
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:none;
  border-radius:var(--radius-btn);
  font-weight:700;
  cursor:pointer;
  transition:all .25s ease;
  text-decoration:none;
  line-height:1.2;
  white-space:nowrap;
}
.btn:focus-visible{
  outline:3px solid rgba(232,149,71,.45);
  outline-offset:2px;
}
.btn-accent{
  background:var(--color-accent);
  color:var(--color-bg-dark);
  height:42px;
  padding:0 24px;
  font-size:15px;
}
.btn-accent:hover{
  background:var(--color-accent-dark);
  color:#fff;
  box-shadow:0 0 0 4px rgba(232,149,71,.22);
  transform:translateY(-1px);
}
.btn-accent:active{transform:translateY(1px)}
.btn-lg{height:56px;padding:0 40px;font-size:17px;border-radius:12px}
.btn-outline{
  background:var(--color-white);
  border:1.5px solid var(--color-primary);
  color:var(--color-primary);
  height:46px;
  padding:0 28px;
  font-size:15px;
}
.btn-outline:hover{
  background:rgba(20,102,92,.06);
  border-color:var(--color-primary-dark);
  color:var(--color-primary-dark);
}
.btn-ghost{
  background:transparent;
  border:1.5px solid rgba(255,255,255,.7);
  color:#fff;
  height:48px;
  padding:0 30px;
  font-size:15px;
}
.btn-ghost:hover{
  background:rgba(255,255,255,.15);
  border-color:#fff;
  color:#fff;
}
.menu-toggle{
  display:none;
  background:none;
  border:none;
  color:#fff;
  font-size:24px;
  cursor:pointer;
  padding:8px;
  line-height:1;
}
.mobile-menu{
  display:none;
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  background:var(--color-bg-dark);
  z-index:99;
  padding:100px 32px 40px;
  flex-direction:column;
  gap:28px;
}
.mobile-menu.open{display:flex}
.mobile-menu .nav-link{
  font-size:20px;
  color:rgba(255,255,255,.9);
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-menu .nav-link.active{color:var(--color-accent)}
.mobile-menu .btn{margin-top:16px;width:100%}
.mobile-menu-contact{
  color:rgba(255,255,255,.6);
  font-size:14px;
  line-height:2;
  margin-top:16px;
}
.mobile-menu-close{
  position:absolute;
  top:20px;right:24px;
  background:none;
  border:none;
  color:#fff;
  font-size:20px;
  cursor:pointer;
}

/* ===== Category Hero Banner ===== */
.cat-hero{
  position:relative;
  padding:calc(var(--header-height) + 96px) 0 96px;
  background:linear-gradient(112deg,rgba(16,37,31,.88) 30%,rgba(16,37,31,.55) 70%,rgba(16,37,31,.35)),
             url('/assets/images/backpic/back-1.png') center 30% / cover no-repeat;
  display:flex;
  align-items:center;
  min-height:420px;
}
.cat-hero-content{max-width:760px}
.cat-hero .hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  font-weight:600;
  color:var(--color-accent);
  border:1px solid rgba(232,149,71,.55);
  padding:6px 16px;
  border-radius:var(--radius-badge);
  background:rgba(16,37,31,.35);
  margin-bottom:24px;
  letter-spacing:.04em;
}
.cat-hero h1{
  font-size:42px;
  line-height:1.2;
  font-weight:800;
  color:#fff;
  margin-bottom:20px;
  letter-spacing:-.01em;
}
.cat-hero .hero-desc{
  font-size:17px;
  line-height:1.9;
  color:rgba(255,255,255,.82);
  max-width:640px;
  margin-bottom:32px;
}
.cat-hero .hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.cat-hero .hero-note{
  font-size:13px;
  color:rgba(255,255,255,.5);
  margin-top:18px;
}

/* ===== Feature Cards (大卡片列表) ===== */
.cat-features{
  padding:96px 0;
  background:var(--color-white);
}
.section-head{
  text-align:center;
  margin-bottom:64px;
}
.section-eyebrow{
  display:inline-block;
  font-size:14px;
  font-weight:700;
  color:var(--color-accent);
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{
  font-size:32px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:14px;
  letter-spacing:-.01em;
}
.section-head p{
  font-size:17px;
  color:var(--color-text-secondary);
  max-width:560px;
  margin:0 auto;
  line-height:1.7;
}
.feature-card{
  display:flex;
  align-items:center;
  gap:56px;
  margin-bottom:56px;
  background:#fff;
  border-radius:var(--radius-card);
  padding:24px;
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-card);
  transition:var(--transition);
}
.feature-card:last-child{margin-bottom:0}
.feature-card:hover{
  box-shadow:var(--shadow-card-hover);
  border-color:var(--color-primary);
  transform:translateY(-2px);
}
.feature-media{
  position:relative;
  flex:0 0 48%;
  max-width:48%;
  border-radius:var(--radius-img);
  overflow:hidden;
  aspect-ratio:16/10;
  background:#E8EDEA;
}
.feature-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-badge{
  position:absolute;
  top:16px;left:16px;
  background:var(--color-accent);
  color:#fff;
  font-size:13px;
  font-weight:700;
  padding:5px 14px;
  border-radius:var(--radius-badge);
  box-shadow:0 2px 8px rgba(0,0,0,.18);
}
.feature-content{
  flex:1;
  padding:12px 8px;
}
.feature-tag{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--color-primary);
  background:rgba(20,102,92,.08);
  padding:4px 14px;
  border-radius:var(--radius-badge);
  margin-bottom:14px;
}
.feature-content h3{
  font-size:24px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:14px;
}
.feature-content p{
  font-size:15px;
  color:var(--color-text-secondary);
  line-height:1.85;
  margin-bottom:20px;
}
.feature-points{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:26px;
}
.feature-points li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  color:var(--color-text-secondary);
  line-height:1.6;
}
.feature-points li::before{
  content:'';
  position:absolute;
  left:2px;top:10px;
  width:8px;height:8px;
  background:var(--color-accent);
  border-radius:50%;
}
.feature-card.alt-right .feature-media{order:2}
.feature-card.alt-right .feature-content{order:1}
.feature-card.alt-right{flex-direction:row-reverse}
.feature-card.alt-left{flex-direction:row}

/* ===== Scenarios ===== */
.cat-scenarios{
  padding:96px 0;
  background:var(--color-bg-light);
}
.scenario-grid{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin:0;
}
.scenario-grid .columns{
  flex:1 1 calc(25% - 21px);
  max-width:calc(25% - 21px);
}
.scenario-card{
  background:#fff;
  border-radius:var(--radius-card);
  padding:32px 28px;
  text-align:center;
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-card);
  transition:var(--transition);
  height:100%;
}
.scenario-card:hover{
  box-shadow:var(--shadow-card-hover);
  transform:translateY(-4px);
  border-color:var(--color-primary);
}
.scenario-icon{
  width:64px;height:64px;
  margin:0 auto 20px;
  border-radius:18px;
  background:rgba(20,102,92,.08);
  color:var(--color-primary);
  font-size:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.scenario-card:hover .scenario-icon{
  background:var(--color-primary);
  color:#fff;
}
.scenario-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:12px;
}
.scenario-card p{
  font-size:14px;
  color:var(--color-text-muted);
  line-height:1.7;
  margin:0;
}

/* ===== Solutions Process 方案流程 ===== */
.cat-process{
  padding:96px 0;
  background:var(--color-white);
}
.process-steps{
  display:flex;
  gap:28px;
  margin-top:48px;
  position:relative;
}
.process-step{
  flex:1;
  text-align:center;
  padding:0 12px;
  position:relative;
}
.process-step::before{
  content:'';
  position:absolute;
  top:32px;
  left:-14px;
  right:calc(50% + 28px);
  height:2px;
  border-top:2px dashed var(--color-border);
}
.process-step:first-child::before{display:none}
.process-num{
  width:64px;height:64px;
  margin:0 auto 20px;
  border-radius:50%;
  background:var(--color-white);
  border:2px solid var(--color-primary);
  color:var(--color-primary);
  font-size:22px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  z-index:1;
  box-shadow:0 0 0 6px rgba(20,102,92,.06);
}
.process-step:first-child .process-num{
  background:var(--color-accent);
  border-color:var(--color-accent);
  color:#fff;
  box-shadow:0 0 0 6px rgba(232,149,71,.16);
}
.process-step h3{
  font-size:18px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:10px;
}
.process-step p{
  font-size:14px;
  color:var(--color-text-muted);
  line-height:1.7;
  max-width:220px;
  margin:0 auto;
}

/* ===== FAQ ===== */
.faq-section{
  padding:96px 0;
  background:var(--color-bg-light);
}
.faq-list{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  background:#fff;
  border:1px solid var(--color-border);
  border-radius:12px;
  margin-bottom:16px;
  transition:var(--transition);
  overflow:hidden;
}
.faq-item:hover{border-color:var(--color-primary)}
.faq-item.open{
  border-color:var(--color-primary);
  box-shadow:var(--shadow-card);
}
.faq-question{
  width:100%;
  background:none;
  border:none;
  padding:20px 24px;
  font-size:16px;
  font-weight:700;
  color:var(--color-text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  cursor:pointer;
  text-align:left;
  transition:var(--transition);
  min-height:48px;
}
.faq-question:hover{color:var(--color-primary)}
.faq-question i{
  color:var(--color-accent);
  font-size:16px;
  flex-shrink:0;
  transition:transform .25s ease;
}
.faq-item.open .faq-question i{
  transform:rotate(45deg);
  color:var(--color-primary);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-answer-inner{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--color-text-secondary);
  line-height:1.75;
}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  padding:96px 0;
  background:linear-gradient(120deg,rgba(16,37,31,.92) 20%,rgba(16,37,31,.75)),
              url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
  text-align:center;
}
.cta-inner{
  max-width:640px;
  margin:0 auto;
  padding:0 16px;
}
.cta-badge{
  display:inline-block;
  background:rgba(232,149,71,.15);
  border:1px solid rgba(232,149,71,.5);
  color:var(--color-accent);
  font-size:13px;
  font-weight:600;
  padding:6px 18px;
  border-radius:var(--radius-badge);
  margin-bottom:24px;
}
.cta-section h2{
  font-size:32px;
  color:#fff;
  font-weight:800;
  margin-bottom:16px;
  letter-spacing:-.01em;
}
.cta-section p{
  font-size:16px;
  color:rgba(255,255,255,.72);
  margin-bottom:36px;
  line-height:1.8;
}
.cta-note{
  font-size:13px;
  color:rgba(255,255,255,.4);
  margin-top:18px;
}

/* ===== Related Categories ===== */
.related-cats{
  padding:80px 0;
  background:var(--color-white);
}
.related-cats h2{
  font-size:24px;
  font-weight:700;
  text-align:center;
  margin-bottom:40px;
}
.related-card{
  display:block;
  background:var(--color-bg-light);
  border:1px solid var(--color-border);
  border-radius:var(--radius-card);
  padding:32px;
  min-height:180px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.related-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--color-accent),var(--color-primary));
  opacity:0;
  transition:opacity .3s ease;
}
.related-card:hover{
  border-color:var(--color-accent);
  box-shadow:var(--shadow-card-hover);
  transform:translateY(-3px);
}
.related-card:hover::before{opacity:1}
.related-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:12px;
}
.related-card p{
  font-size:14px;
  color:var(--color-text-muted);
  line-height:1.7;
  margin-bottom:20px;
}
.related-card .link-text{
  font-size:14px;
  font-weight:600;
  color:var(--color-primary);
}
.related-card:hover .link-text{color:var(--color-accent)}
.related-card .link-text i{
  font-size:13px;
  margin-left:4px;
  transition:transform .25s ease;
}
.related-card:hover .link-text i{transform:translateX(4px)}

/* ===== Footer ===== */
.site-footer{
  background:var(--color-bg-dark);
  color:rgba(255,255,255,.8);
  padding:72px 0 32px;
  font-size:14px;
}
.footer-top{
  display:flex;
  flex-wrap:wrap;
  gap:40px;
  margin-bottom:48px;
}
.footer-brand{
  flex:1.4;
  min-width:240px;
}
.footer-brand .brand{
  margin-bottom:16px;
}
.footer-brand .brand-text{color:#fff}
.footer-brand p{
  font-size:13px;
  color:rgba(255,255,255,.5);
  line-height:1.8;
  max-width:280px;
}
.footer-col{
  flex:1;
  min-width:140px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-col ul li{
  margin-bottom:12px;
}
.footer-col ul li a{
  color:rgba(255,255,255,.65);
  font-size:14px;
  transition:color .25s ease;
}
.footer-col ul li a:hover{
  color:var(--color-accent);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  color:rgba(255,255,255,.65);
  font-size:14px;
  line-height:1.6;
}
.footer-contact i{
  color:var(--color-accent);
  width:18px;
  text-align:center;
  font-size:14px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  color:rgba(255,255,255,.4);
  font-size:13px;
}
.footer-bottom a{
  color:rgba(255,255,255,.4);
}
.footer-bottom a:hover{
  color:var(--color-accent);
}

/* ===== Responsive ===== */
@media (max-width:1023px){
  .main-nav{gap:18px}
  .nav-link{font-size:14px}
  .header-action .activity-badge{display:none}
  .scenario-grid .columns{
    flex:1 1 calc(50% - 14px);
    max-width:calc(50% - 14px);
  }
  .feature-card{flex-direction:column;gap:28px}
  .feature-card.alt-right{flex-direction:column}
  .feature-media{
    flex:0 0 100%;
    max-width:100%;
    width:100%;
  }
  .feature-content{width:100%}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .main-nav{display:none}
  .header-action .btn{padding:0 18px;height:40px;font-size:14px}
  .menu-toggle{display:block}
  .cat-hero{
    padding:calc(var(--header-height) + 56px) 0 64px;
    min-height:420px;
  }
  .cat-hero h1{font-size:30px}
  .cat-hero .hero-desc{font-size:15px}
  .cat-hero .hero-actions{flex-direction:column;gap:12px}
  .cat-hero .btn{width:100%}
  .cat-features,
  .cat-scenarios,
  .cat-process,
  .faq-section,
  .cta-section{
    padding:56px 0;
  }
  .section-head{margin-bottom:40px}
  .section-head h2{font-size:24px}
  .section-head p{font-size:15px}
  .feature-card{padding:16px}
  .feature-media{aspect-ratio:16/10}
  .feature-content h3{font-size:20px}
  .feature-content p{font-size:14px}
  .feature-points li{font-size:13px}
  .scenario-grid{flex-direction:column}
  .scenario-grid .columns{
    flex:1 1 100%;
    max-width:100%;
  }
  .process-steps{
    flex-direction:column;
    gap:36px;
  }
  .process-step::before{display:none}
  .faq-question{font-size:15px;padding:16px 18px}
  .faq-answer-inner{padding:0 18px 20px;font-size:14px}
  .cta-section h2{font-size:26px}
  .cta-section p{font-size:15px}
  .cta-section .btn{width:100%}
  .related-cats h2{font-size:20px}
  .related-card{padding:24px}
  .footer-top{flex-direction:column;gap:32px}
  .footer-brand{flex:1 1 100%}
  .footer-bottom{flex-direction:column;text-align:center}
  .footer-contact li{font-size:13px}
}
@media (max-width:520px){
  .header-action .header-cta-text{display:none}
  .btn-accent{padding:0 16px}
  .brand-text{font-size:16px}
}

/* roulang page: article */
:root{
  --color-primary:#14665C;
  --color-primary-dark:#0F524A;
  --color-accent:#E89547;
  --color-accent-dark:#D98324;
  --color-bg-dark:#10251F;
  --color-bg-light:#F5F6F2;
  --color-text:#22312D;
  --color-text-secondary:#5D6B66;
  --color-text-muted:#8A9691;
  --color-border:#DCE3DD;
  --color-white:#FFFFFF;
  --color-success:#2F9E62;
  --color-warning:#D98324;
  --color-error:#CF4444;
  --shadow-sm:0 2px 6px rgba(16,37,31,.06);
  --shadow-md:0 12px 24px rgba(16,37,31,.12);
  --shadow-nav:0 4px 12px rgba(16,37,31,.10);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --radius-pill:999px;
  --container:1200px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--color-text);
  background:var(--color-bg-light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--color-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--color-accent-dark);}
ul,ol{padding-left:1.4em;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 32px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:all .25s ease;
}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.btn-accent{
  background:var(--color-accent);color:var(--color-bg-dark);
  box-shadow:0 4px 12px rgba(232,149,71,.25);
}
.btn-accent:hover{
  background:#F0A15F;color:var(--color-bg-dark);
  box-shadow:0 8px 20px rgba(232,149,71,.35);transform:translateY(-1px);
}
.btn-accent:active{transform:translateY(1px);box-shadow:none;}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff;color:#fff;}
.btn-dark{background:var(--color-bg-dark);color:#fff;}
.btn-dark:hover{background:var(--color-primary);color:#fff;}
a:focus-visible,.btn:focus-visible,.nav-link:focus-visible,.brand:focus-visible,.menu-toggle:focus-visible{
  outline:3px solid rgba(232,149,71,.5);outline-offset:2px;
}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  height:var(--header-h);
  background:var(--color-bg-dark);
  box-shadow:var(--shadow-nav);
  transition:background .3s ease;
}
.nav-container{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--header-h);gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;white-space:nowrap;}
.brand-icon{width:32px;height:32px;color:var(--color-accent);display:inline-flex;align-items:center;flex-shrink:0;}
.brand-icon svg{width:100%;height:100%;}
.brand-text{font-size:18px;font-weight:700;color:#fff;letter-spacing:.02em;}
.brand-en{color:var(--color-accent);font-family:"Inter","Helvetica Neue",sans-serif;font-weight:800;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;color:rgba(255,255,255,.8);font-size:15px;font-weight:500;
  padding:8px 4px;transition:color .2s ease;
}
.nav-link:hover{color:var(--color-accent);}
.nav-link.active{color:#fff;font-weight:600;}
.nav-link.active::after{
  content:'';position:absolute;left:0;right:0;bottom:-2px;
  height:2px;background:var(--color-accent);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.live-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.1);color:#fff;padding:4px 12px;
  border-radius:999px;font-size:13px;white-space:nowrap;
}
.live-badge::before{
  content:'';width:6px;height:6px;background:var(--color-success);border-radius:50%;
  animation:pulse 1.6s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 2px rgba(47,158,98,.4);}
  50%{box-shadow:0 0 0 4px rgba(47,158,98,.12);}
}
.mobile-menu-check{display:none;position:absolute;opacity:0;pointer-events:none;}
.menu-toggle{display:none;}

/* ===== Breadcrumb ===== */
.breadcrumb-bar{
  background:#EDF0EC;border-bottom:1px solid var(--color-border);
  padding:14px 0;font-size:14px;
}
.breadcrumb-bar .container{display:flex;align-items:center;flex-wrap:wrap;gap:8px;}
.breadcrumb-bar a{color:var(--color-text-secondary);font-weight:500;}
.breadcrumb-bar a:hover{color:var(--color-accent-dark);}
.breadcrumb-bar .sep{color:#B7C3BC;font-size:12px;display:inline-flex;align-items:center;}
.breadcrumb-bar .current{color:var(--color-text-muted);}

/* ===== Article ===== */
.article-main{padding:48px 0 80px;background:var(--color-white);}
.article-card{max-width:920px;margin:0 auto;}
.article-header{text-align:left;padding-bottom:28px;margin-bottom:36px;border-bottom:1px solid var(--color-border);}
.article-category{
  display:inline-block;color:var(--color-primary);background:rgba(20,102,92,.08);
  font-size:13px;font-weight:600;padding:4px 14px;border-radius:999px;margin-bottom:20px;
  transition:background .2s ease;
}
.article-category:hover{background:rgba(20,102,92,.16);color:var(--color-primary-dark);}
.article-header h1{font-size:34px;line-height:1.3;font-weight:800;color:var(--color-text);margin:0 0 16px;letter-spacing:-.01em;}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--color-text-muted);font-size:14px;}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{color:var(--color-accent);}

.article-body{max-width:720px;margin:0 auto;}
.article-body p{margin-bottom:24px;color:var(--color-text);font-size:16px;line-height:1.85;}
.article-body h2{font-size:22px;line-height:1.4;margin:40px 0 16px;color:var(--color-text);font-weight:700;}
.article-body h3{font-size:18px;margin:32px 0 12px;color:var(--color-text);font-weight:700;}
.article-body ul,.article-body ol{margin-bottom:24px;padding-left:1.6em;}
.article-body li{margin-bottom:8px;}
.article-body a{color:var(--color-primary);border-bottom:1px solid rgba(20,102,92,.3);}
.article-body a:hover{color:var(--color-accent-dark);border-color:var(--color-accent);}
.article-body blockquote{
  border-left:3px solid var(--color-primary);background:#EEF5F1;
  padding:18px 22px;border-radius:0 10px 10px 0;
  color:var(--color-text-secondary);margin:24px 0;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--color-border);padding:12px 14px;text-align:left;}
.article-body th{background:var(--color-bg-dark);color:#fff;font-weight:600;}
.article-body tr:nth-child(even) td{background:#FAFBF9;}
.article-body img{border-radius:var(--radius-img);margin:24px 0;height:auto;}
.article-body code,.article-body pre{font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:14px;}
.article-body pre{background:var(--color-bg-dark);color:#E8F0EC;padding:20px;border-radius:12px;overflow-x:auto;margin:24px 0;}

.article-not-found{text-align:center;padding:100px 24px;}
.article-not-found i{font-size:56px;color:var(--color-primary);margin-bottom:24px;display:block;}
.article-not-found h1{font-size:28px;font-weight:800;margin-bottom:12px;}
.article-not-found p{color:var(--color-text-secondary);margin-bottom:28px;}

/* ===== Related ===== */
.related-section{background:var(--color-bg-light);padding:72px 0;}
.related-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;flex-wrap:wrap;gap:16px;}
.related-header h2{font-size:30px;font-weight:700;color:var(--color-text);}
.back-link{
  font-size:15px;color:var(--color-primary);font-weight:600;
  padding:10px 16px;border-radius:10px;display:inline-flex;align-items:center;gap:6px;
  transition:background .2s ease;
}
.back-link:hover{background:#E8F0EC;color:var(--color-primary-dark);}
.mb-3{margin-bottom:24px;}
.related-card{
  display:block;background:var(--color-white);border-radius:var(--radius-card);
  overflow:hidden;border:1px solid var(--color-border);box-shadow:var(--shadow-sm);
  height:100%;transition:all .25s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--color-primary);}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.related-meta{padding:20px;}
.related-card h3{font-size:16px;line-height:1.55;margin-bottom:8px;color:var(--color-text);transition:color .2s;}
.related-card:hover h3{color:var(--color-primary);}
.related-card .date{font-size:13px;color:var(--color-text-muted);display:flex;align-items:center;gap:6px;}

/* ===== Demo Form ===== */
.demo-section{background:var(--color-bg-light);padding:72px 0;}
.demo-box{
  max-width:760px;margin:0 auto;background:var(--color-white);
  border-radius:20px;box-shadow:var(--shadow-md);padding:48px;
}
.demo-box h2{font-size:28px;font-weight:700;margin-bottom:8px;}
.demo-box .demo-desc{color:var(--color-text-secondary);margin-bottom:32px;}
.demo-form .row{margin-left:-8px;margin-right:-8px;}
.demo-form .columns{padding-left:8px;padding-right:8px;}
.form-group{margin-bottom:20px;}
.form-group label{display:flex;align-items:baseline;gap:6px;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--color-text);}
.required{color:var(--color-error);}
.form-group input,.form-group select{
  width:100%;height:48px;padding:10px 14px;border:1px solid var(--color-border);
  border-radius:8px;font-size:15px;background:var(--color-white);
  transition:all .2s ease;font-family:inherit;
}
.form-group select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2314656C' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;
}
.form-group input:focus,.form-group select:focus{
  border-color:var(--color-primary);outline:none;box-shadow:0 0 0 4px rgba(20,102,92,.1);
}
.form-group input::placeholder{color:#B7C3BC;}
.form-submit{margin-top:8px;width:100%;}
.form-privacy{margin-top:12px;font-size:12px;color:var(--color-text-muted);text-align:center;}
.form-success{text-align:center;padding:32px 0;}
.form-success i{font-size:48px;color:var(--color-success);margin-bottom:16px;display:block;}
.form-success h3{font-size:22px;font-weight:700;margin-bottom:8px;}
.form-success p{color:var(--color-text-secondary);}

/* ===== CTA ===== */
.cta-section{
  background:
    linear-gradient(rgba(16,37,31,.92),rgba(16,37,31,.86)),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding:96px 0;text-align:center;color:#fff;
}
.cta-tag{
  display:inline-block;background:rgba(232,149,71,.18);border:1px solid rgba(232,149,71,.45);
  color:#F0C79A;font-size:13px;padding:6px 18px;border-radius:999px;margin-bottom:20px;
}
.cta-section h2{font-size:32px;font-weight:800;margin-bottom:16px;}
.cta-section p{color:rgba(255,255,255,.75);max-width:520px;margin:0 auto 36px;font-size:16px;}
.btn-cta{
  background:var(--color-accent);color:var(--color-bg-dark);min-height:56px;
  padding:0 48px;font-size:16px;border-radius:12px;
  box-shadow:0 8px 24px rgba(232,149,71,.35);
}
.btn-cta:hover{
  background:#F0A15F;color:var(--color-bg-dark);
  box-shadow:0 8px 24px rgba(232,149,71,.5);transform:translateY(-1px);
}
.cta-note{margin-top:16px;font-size:12px;color:rgba(255,255,255,.5);}

/* ===== Footer ===== */
.site-footer{background:var(--color-bg-dark);color:rgba(255,255,255,.8);padding:64px 0 0;}
.site-footer a{color:rgba(255,255,255,.8);}
.site-footer a:hover{color:var(--color-accent);}
.footer-top{
  display:flex;flex-wrap:wrap;gap:32px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{flex:1 1 260px;min-width:240px;}
.footer-brand .brand{margin-bottom:12px;}
.footer-brand p{font-size:12px;line-height:1.7;color:rgba(255,255,255,.55);max-width:260px;margin:0;}
.footer-col{flex:1 1 180px;min-width:150px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;}
.footer-contact li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7);}
.footer-contact i{color:var(--color-accent);width:16px;flex-shrink:0;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:24px 0;font-size:13px;color:rgba(255,255,255,.4);
}

/* ===== Responsive ===== */
@media(max-width:1023px){
  .menu-toggle{
    display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
    width:40px;height:40px;background:transparent;border:1px solid rgba(255,255,255,.2);
    border-radius:8px;cursor:pointer;
  }
  .menu-toggle .bar{width:20px;height:2px;background:#fff;border-radius:2px;margin:0 auto;}
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:var(--color-bg-dark);flex-direction:column;gap:0;
    padding:16px 24px;box-shadow:0 12px 24px rgba(0,0,0,.3);
    display:none;z-index:999;max-height:calc(100vh - var(--header-h));overflow-y:auto;
  }
  .nav-link{display:block;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08);}
  .mobile-menu-check:checked ~ .main-nav{display:flex;}
  .nav-actions .live-badge{display:none;}
}
@media(max-width:767px){
  .container{padding:0 16px;}
  .article-main{padding:32px 0 48px;}
  .article-header h1{font-size:26px;}
  .article-header{padding-bottom:20px;margin-bottom:28px;}
  .article-body p{font-size:15px;}
  .related-section,.demo-section{padding:48px 0;}
  .related-header h2{font-size:24px;}
  .demo-box{padding:32px 20px;}
  .demo-box h2{font-size:24px;}
  .cta-section{padding:64px 0;}
  .cta-section h2{font-size:24px;}
  .footer-top{gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .nav-actions .btn-sm{padding:0 14px;font-size:13px;min-height:38px;}
}
@media(max-width:520px){
  .breadcrumb-bar{font-size:13px;}
  .article-meta{flex-direction:column;gap:8px;}
  .related-card h3{font-size:15px;}
  .btn-cta{min-height:52px;padding:0 36px;}
  .brand-text{font-size:16px;}
  .nav-container{gap:12px;}
}

/* roulang page: category2 */
:root {
      --color-primary: #14665C;
      --color-accent: #E89547;
      --color-bg-dark: #10251F;
      --color-bg-light: #F5F6F2;
      --color-white: #FFFFFF;
      --color-text: #22312D;
      --color-text-secondary: #5D6B66;
      --color-text-muted: #8A9691;
      --color-border: #DCE3DD;
      --color-success: #2F9E62;
      --color-warning: #D98324;
      --color-error: #CF4444;
      --shadow-card: 0 2px 6px rgba(16,37,31,.06);
      --shadow-hover: 0 12px 24px rgba(16,37,31,.12);
      --shadow-nav: 0 4px 12px rgba(16,37,31,.10);
      --radius-card: 16px;
      --radius-btn: 10px;
      --radius-img: 14px;
      --radius-badge: 999px;
      --space-section: 88px;
      --font-main: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: Inter, "Helvetica Neue", "PingFang SC", sans-serif;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-main);
      color: var(--color-text);
      background: #fff;
      line-height: 1.6;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; }
    a { color: var(--color-primary); }
    a:hover { color: var(--color-accent); }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }

    /* ===== Header ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: 72px;
      display: flex;
      align-items: center;
      background: rgba(16,37,31,.96);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: var(--shadow-nav);
      transition: background .3s ease, box-shadow .3s ease;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      width: 100%;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      text-decoration: none;
      flex-shrink: 0;
    }
    .brand:hover { color: #fff; }
    .brand-icon { width: 32px; height: 32px; color: var(--color-accent); display: flex; }
    .brand-icon svg { width: 100%; height: 100%; }
    .brand-text {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      letter-spacing: 0;
      white-space: nowrap;
    }
    .brand-en {
      font-family: var(--font-num);
      font-weight: 800;
      color: var(--color-accent);
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      font-size: 15px;
      color: rgba(255,255,255,.85);
      text-decoration: none;
      padding: 6px 2px;
      position: relative;
      transition: color .25s ease;
      background: none;
      border: none;
      cursor: pointer;
    }
    .nav-link:hover { color: var(--color-accent); }
    .nav-link.active { color: #fff; font-weight: 600; }
    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 2px;
      background: var(--color-accent);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-shrink: 0;
    }
    .live-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: rgba(255,255,255,.9);
      font-size: 13px;
      background: rgba(255,255,255,.1);
      padding: 6px 14px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.18);
      white-space: nowrap;
    }
    .live-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-accent);
      position: relative;
      flex-shrink: 0;
    }
    .live-dot::after {
      content: '';
      position: absolute;
      inset: -4px;
      border-radius: 50%;
      border: 1px solid var(--color-accent);
      animation: live-pulse 2s infinite;
    }
    @keyframes live-pulse {
      0% { transform: scale(.6); opacity: 1; }
      100% { transform: scale(1.5); opacity: 0; }
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 32px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 700;
      text-decoration: none;
      transition: all .25s ease;
      cursor: pointer;
      border: none;
      font-family: var(--font-main);
      line-height: 1;
      white-space: nowrap;
    }
    .btn-accent { background: var(--color-accent); color: var(--color-bg-dark); }
    .btn-accent:hover { background: #f0a55e; color: var(--color-bg-dark); box-shadow: 0 0 0 4px rgba(232,149,71,.22); }
    .btn-outline {
      background: #fff;
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
    }
    .btn-outline:hover { background: rgba(20,102,92,.06); color: var(--color-primary); }
    .btn-ghost {
      background: transparent;
      border: 1.5px solid rgba(255,255,255,.7);
      color: #fff;
    }
    .btn-ghost:hover { background: rgba(255,255,255,.15); border-color: #fff; color: #fff; }
    .btn-lg { height: 56px; padding: 0 40px; font-size: 16px; }
    .btn-sm { height: 40px; padding: 0 20px; font-size: 14px; border-radius: 8px; }
    .btn-block { width: 100%; }
    .btn:focus-visible {
      outline: 3px solid rgba(232,149,71,.5);
      outline-offset: 2px;
    }

    /* ===== Mobile nav ===== */
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.15);
      border-radius: 10px;
      cursor: pointer;
      padding: 0;
      flex-shrink: 0;
    }
    .nav-toggle span {
      width: 18px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: transform .25s ease, opacity .25s ease;
    }
    .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle.open span:nth-child(2) { opacity: 0; }
    .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .mobile-menu {
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      background: var(--color-bg-dark);
      padding: 24px 16px 32px;
      display: none;
      flex-direction: column;
      gap: 4px;
      box-shadow: var(--shadow-nav);
      z-index: 999;
      border-top: 1px solid rgba(255,255,255,.08);
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a.nav-link {
      padding: 14px 12px;
      font-size: 16px;
      border-radius: 10px;
      color: rgba(255,255,255,.85);
      text-decoration: none;
    }
    .mobile-menu a.nav-link.active { background: rgba(255,255,255,.06); color: #fff; }
    .mobile-menu a.btn { margin-top: 14px; }
    .mobile-contact {
      margin-top: 20px;
      padding: 14px 12px;
      font-size: 14px;
      color: rgba(255,255,255,.5);
      line-height: 1.8;
      border-top: 1px solid rgba(255,255,255,.08);
    }

    /* ===== Category hero ===== */
    .category-hero {
      position: relative;
      padding: 120px 0 80px;
      min-height: 280px;
      display: flex;
      align-items: center;
      color: #fff;
      overflow: hidden;
    }
    .category-hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
    }
    .category-hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(16,37,31,.9) 0%, rgba(16,37,31,.74) 55%, rgba(16,37,31,.46) 100%);
    }
    .category-hero-content { position: relative; z-index: 2; }
    .hero-tag {
      display: inline-block;
      border: 1px solid var(--color-accent);
      color: var(--color-accent);
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 13px;
      letter-spacing: .04em;
      margin-bottom: 18px;
      background: rgba(232,149,71,.08);
    }
    .category-hero h1 {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.25;
      margin: 0 0 14px;
      color: #fff;
    }
    .hero-desc {
      font-size: 16px;
      color: rgba(255,255,255,.78);
      max-width: 640px;
      line-height: 1.7;
      margin: 0;
    }

    /* ===== Sections ===== */
    .section { padding: var(--space-section) 0; }
    .section.bg-light { background: var(--color-bg-light); }
    .section-head { margin-bottom: 48px; max-width: 720px; }
    .section-head h2 {
      font-size: 30px;
      font-weight: 700;
      color: var(--color-text);
      margin: 0 0 12px;
      line-height: 1.3;
    }
    .section-head p {
      font-size: 16px;
      color: var(--color-text-secondary);
      margin: 0;
      line-height: 1.7;
    }

    /* ===== About ===== */
    .about-text p {
      font-size: 16px;
      line-height: 1.85;
      color: var(--color-text-secondary);
      margin-bottom: 20px;
    }
    .about-card {
      background: var(--color-bg-light);
      border-radius: var(--radius-card);
      padding: 28px;
      border: 1px solid var(--color-border);
      height: 100%;
    }
    .about-card ul { list-style: none; margin: 0; padding: 0; }
    .about-card li {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 0;
      font-size: 15px;
      color: var(--color-text);
      border-bottom: 1px dashed var(--color-border);
    }
    .about-card li:last-child { border-bottom: none; }
    .about-card li i { color: var(--color-accent); font-size: 18px; flex-shrink: 0; }

    .stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
      background: var(--color-bg-light);
      border-radius: var(--radius-card);
      padding: 36px 32px;
      border: 1px solid var(--color-border);
    }
    .stat-item {
      text-align: center;
      border-right: 1px solid var(--color-border);
      padding: 8px 0;
    }
    .stat-item:last-child { border-right: none; }
    .stat-num {
      font-size: 34px;
      font-weight: 800;
      color: var(--color-primary);
      font-family: var(--font-num);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 13px;
      color: var(--color-text-muted);
      margin-top: 8px;
    }
    .stat-note {
      text-align: center;
      font-size: 12px;
      color: var(--color-text-muted);
      margin-top: 12px;
    }

    /* ===== Timeline ===== */
    .timeline {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding-left: 24px;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 6px;
      top: 0;
      bottom: 0;
      width: 2px;
      background: linear-gradient(var(--color-primary), var(--color-accent));
      opacity: .25;
    }
    .timeline-item {
      position: relative;
      padding: 0 0 36px 32px;
    }
    .timeline-item:last-child { padding-bottom: 0; }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: 0;
      top: 6px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: #fff;
      border: 3px solid var(--color-primary);
    }
    .timeline-item:nth-child(even)::before { border-color: var(--color-accent); }
    .timeline-year {
      font-size: 14px;
      font-weight: 800;
      color: var(--color-primary);
      font-family: var(--font-num);
      letter-spacing: .02em;
      margin-bottom: 6px;
    }
    .timeline-item:nth-child(even) .timeline-year { color: var(--color-accent); }
    .timeline-content h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--color-text);
      margin: 0 0 8px;
    }
    .timeline-content p {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.7;
      margin: 0;
      max-width: 560px;
    }

    /* ===== Capacity cards ===== */
    .capacity-card {
      background: #fff;
      border-radius: var(--radius-card);
      border: 1px solid var(--color-border);
      overflow: hidden;
      height: 100%;
      box-shadow: var(--shadow-card);
      transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
    }
    .capacity-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(20,102,92,.3);
    }
    .capacity-img { aspect-ratio: 16/10; overflow: hidden; }
    .capacity-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform .4s ease;
    }
    .capacity-card:hover .capacity-img img { transform: scale(1.04); }
    .capacity-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 0;
      padding: 20px 22px 8px;
    }
    .capacity-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--color-text-secondary);
      padding: 0 22px 24px;
      margin: 0;
    }

    /* ===== Form ===== */
    .form-section { padding-top: 0; }
    .form-card {
      max-width: 760px;
      margin: 0 auto;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: 20px;
      box-shadow: var(--shadow-hover);
      padding: 44px 40px;
    }
    .form-head { text-align: center; margin-bottom: 32px; }
    .form-head h2 {
      font-size: 26px;
      font-weight: 700;
      color: var(--color-text);
      margin: 0 0 8px;
    }
    .form-head p { font-size: 15px; color: var(--color-text-muted); margin: 0; }
    .demo-form label {
      font-size: 14px;
      font-weight: 600;
      color: var(--color-text);
      margin-bottom: 8px;
      display: block;
    }
    .required { color: var(--color-error); }
    .demo-form input,
    .demo-form select {
      height: 48px;
      border: 1px solid var(--color-border);
      border-radius: 8px;
      font-size: 15px;
      padding: 0 14px;
      background: #fff;
      color: var(--color-text);
      width: 100%;
      margin-bottom: 20px;
      transition: border-color .2s, box-shadow .2s;
      box-shadow: none;
    }
    .demo-form input:focus,
    .demo-form select:focus {
      border-color: var(--color-primary);
      outline: none;
      box-shadow: 0 0 0 4px rgba(20,102,92,.12);
    }
    .form-privacy {
      font-size: 12px;
      color: var(--color-text-muted);
      text-align: center;
      margin-top: 14px;
    }
    .form-success { display: none; text-align: center; padding: 30px 0; }
    .form-success i {
      font-size: 52px;
      color: var(--color-success);
      margin-bottom: 12px;
    }
    .form-success h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 8px;
    }
    .form-success p {
      color: var(--color-text-secondary);
      font-size: 15px;
      margin: 0;
    }
    .form-success.show { display: block; }
    #demoForm.hidden { display: none; }

    /* ===== FAQ ===== */
    .faq-list { max-width: 820px; margin: 0 auto; }
    .faq-item {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: 12px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color .25s ease, box-shadow .25s ease;
    }
    .faq-item.open {
      border-color: var(--color-primary);
      box-shadow: var(--shadow-card);
    }
    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      background: none;
      border: none;
      padding: 20px 22px;
      font-size: 16px;
      font-weight: 700;
      color: var(--color-text);
      cursor: pointer;
      text-align: left;
      min-height: 56px;
      font-family: var(--font-main);
      transition: color .2s ease;
    }
    .faq-q:hover { color: var(--color-primary); }
    .faq-icon {
      width: 28px;
      height: 28px;
      flex-shrink: 0;
      border-radius: 50%;
      background: var(--color-bg-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      transition: transform .25s ease, background .25s ease;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--color-primary);
      color: #fff;
    }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease;
    }
    .faq-a-inner {
      padding: 0 22px 20px;
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.75;
    }
    .faq-item.open .faq-a { max-height: 400px; }

    /* ===== CTA ===== */
    .cta-section {
      position: relative;
      padding: 96px 0;
      background: linear-gradient(135deg, #10251F 0%, #14665C 100%);
      color: #fff;
      text-align: center;
    }
    .cta-tag {
      display: inline-block;
      border: 1px solid rgba(232,149,71,.5);
      background: rgba(232,149,71,.12);
      color: rgba(255,255,255,.92);
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 13px;
      margin-bottom: 20px;
    }
    .cta-section h2 {
      font-size: 30px;
      font-weight: 700;
      color: #fff;
      margin: 0 0 16px;
      line-height: 1.3;
    }
    .cta-desc {
      font-size: 16px;
      color: rgba(255,255,255,.7);
      max-width: 600px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }
    .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .cta-note {
      font-size: 12px;
      color: rgba(255,255,255,.5);
      margin-top: 20px;
    }

    /* ===== Related ===== */
    .related-card {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 16px;
      height: 100%;
      text-decoration: none;
      transition: all .3s ease;
      box-shadow: var(--shadow-card);
    }
    .related-card:hover {
      border-color: var(--color-accent);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .related-card img {
      width: 120px;
      height: 80px;
      object-fit: cover;
      border-radius: 10px;
      flex-shrink: 0;
    }
    .related-info h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--color-text);
      margin: 0 0 8px;
      transition: color .25s;
    }
    .related-card:hover .related-info h3 { color: var(--color-primary); }
    .related-info p {
      font-size: 14px;
      color: var(--color-text-secondary);
      margin: 0 0 10px;
      line-height: 1.6;
    }
    .related-link {
      font-size: 14px;
      font-weight: 700;
      color: var(--color-accent);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--color-bg-dark);
      color: rgba(255,255,255,.8);
      padding: 64px 0 0;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 48px;
    }
    .footer-brand p {
      font-size: 12px;
      color: rgba(255,255,255,.55);
      line-height: 1.7;
      margin-top: 14px;
      max-width: 260px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin: 0 0 18px;
    }
    .footer-col ul { list-style: none; margin: 0; padding: 0; }
    .footer-col li { margin-bottom: 12px; }
    .footer-col a {
      color: rgba(255,255,255,.65);
      text-decoration: none;
      font-size: 14px;
      transition: color .25s;
    }
    .footer-col a:hover { color: var(--color-accent); }
    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: rgba(255,255,255,.65);
    }
    .footer-contact i {
      color: var(--color-accent);
      width: 16px;
      text-align: center;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 24px 0;
      border-top: 1px solid rgba(255,255,255,.1);
      font-size: 13px;
      color: rgba(255,255,255,.4);
      flex-wrap: wrap;
      gap: 8px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      :root { --space-section: 64px; }
      .main-nav, .header-actions .live-badge { display: none; }
      .nav-toggle { display: flex; }
      .header-actions .btn { display: none; }
      .footer-top { grid-template-columns: 1fr 1fr; }
      .category-hero { padding: 100px 0 64px; min-height: 240px; }
    }

    @media (max-width: 767px) {
      :root { --space-section: 56px; }
      .container { padding: 0 16px; }
      .category-hero { padding: 88px 0 56px; min-height: auto; }
      .category-hero h1 { font-size: 28px; }
      .hero-desc { font-size: 15px; }
      .section-head h2 { font-size: 24px; }
      .section-head p { font-size: 15px; }
      .stats-row {
        grid-template-columns: 1fr 1fr;
        gap: 20px 12px;
        padding: 28px 20px;
      }
      .stat-item { border-right: none; }
      .stat-num { font-size: 28px; }
      .timeline { padding-left: 16px; }
      .timeline-item { padding-left: 24px; }
      .form-card { padding: 28px 20px; }
      .cta-section { padding: 56px 0; }
      .cta-section h2 { font-size: 24px; }
      .cta-buttons .btn { width: 100%; }
      .related-card {
        flex-direction: column;
        align-items: flex-start;
      }
      .related-card img {
        width: 100%;
        height: auto;
        aspect-ratio: 16/8;
      }
      .footer-top { grid-template-columns: 1fr; gap: 24px; }
      .footer-bottom { justify-content: center; text-align: center; }
      .header-inner { gap: 12px; }
      .brand-text { font-size: 16px; }
      .btn-lg { width: 100%; }
    }

    @media (max-width: 520px) {
      .category-hero h1 { font-size: 24px; }
      .hero-tag { font-size: 12px; padding: 5px 12px; }
      .stats-row { grid-template-columns: 1fr 1fr; }
      .stat-num { font-size: 24px; }
      .about-card { padding: 20px; }
      .section-head { margin-bottom: 32px; }
      .faq-q { font-size: 15px; padding: 18px 16px; }
      .faq-a-inner { font-size: 14px; }
      .capacity-card h3 { font-size: 16px; }
    }