/* roulang page: index */
/* ========== Design Variables ========== */
:root {
  --primary: #0B2B1F;
  --primary-card: #123529;
  --neon: #2DD68D;
  --neon-bright: #3BE89A;
  --gold: #D4A233;
  --bg-light: #F4F6F0;
  --bg-white: #FFFFFF;
  --text-main: #14241D;
  --text-sub: #587365;
  --text-disabled: #9AAFA5;
  --line-light: #E2E8E0;
  --line-dark: #2A4A3C;
  --danger: #E5484D;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(11, 43, 31, 0.04);
  --shadow-md: 0 8px 24px rgba(11, 43, 31, 0.08);
  --shadow-lg: 0 8px 24px rgba(11, 43, 31, 0.10);
  --container: 1200px;
  --section-pad: 88px;
  --transition: 0.2s ease;
}

/* ========== Reset / Base ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  object-fit: cover;
}
a {
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--neon);
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
input, textarea {
  font-family: inherit;
  outline: none;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  font-size: 15px;
  border-radius: var(--radius-sm);
  height: 48px;
  padding: 0 28px;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 1.5px solid transparent;
  letter-spacing: 0.02em;
}
.btn-primary {
  background: var(--neon);
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(45, 214, 141, 0.24);
}
.btn-primary:hover {
  background: var(--neon-bright);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 214, 141, 0.32);
}
.btn-primary:active {
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(45, 214, 141, 0.22);
}
.btn-primary:focus-visible,
.btn-outline:focus-visible,
.btn-ghost:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(45, 214, 141, 0.3);
}
.btn-outline {
  background: transparent;
  border-color: var(--gold);
  color: var(--gold);
}
.btn-outline:hover {
  background: rgba(212, 162, 51, 0.10);
  color: var(--gold);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(-1px);
}
.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}
.btn-lg {
  height: 56px;
  padding: 0 40px;
  font-size: 16px;
}
.btn-block {
  width: 100%;
}

/* ========== Badges & Tags ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}
.badge-green {
  background: transparent;
  border: 1px solid var(--neon);
  color: #1A9E64;
}
.badge-gold {
  background: var(--gold);
  color: #1F1400;
}
.badge-red {
  background: var(--danger);
  color: #fff;
}
.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 4px;
  border: 1px solid var(--neon);
  color: #1A9E64;
  line-height: 1.4;
}

/* ========== Section Shared ========== */
.section {
  padding: var(--section-pad) 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-main);
  letter-spacing: -0.01em;
}
.section-head .section-sub {
  font-size: 14px;
  color: var(--text-sub);
  margin-top: 8px;
  max-width: 480px;
}
.section-head .head-mark {
  font-size: 14px;
  font-weight: 700;
  color: var(--neon);
  background: rgba(45, 214, 141, 0.08);
  border: 1px solid rgba(45, 214, 141, 0.3);
  padding: 6px 16px;
  border-radius: 40px;
  white-space: nowrap;
}

/* ========== Header / Nav ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 43, 31, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(45, 214, 141, 0.3);
  height: 64px;
}
.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  height: 64px;
  gap: 16px;
  position: relative;
}
.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.12;
  text-decoration: none;
  margin-right: 8px;
}
.logo-brand {
  font-size: 21px;
  font-weight: 800;
  color: var(--neon);
  letter-spacing: -0.01em;
}
.logo-sub {
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.16em;
  opacity: 0.95;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: 24px;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.82);
  padding: 8px 2px;
  transition: color var(--transition);
  text-decoration: none;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--neon);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-link:hover {
  color: #fff;
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--neon);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.search-wrap {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid transparent;
  border-radius: 40px;
  padding: 0 6px 0 16px;
  height: 36px;
  transition: all var(--transition);
}
.search-wrap:focus-within {
  border-color: var(--neon);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px rgba(45, 214, 141, 0.15);
}
.search-wrap input {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 13px;
  width: 130px;
  transition: width 0.25s ease;
}
.search-wrap input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}
.search-wrap button {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.search-wrap button:hover {
  color: var(--neon);
  background: rgba(45, 214, 141, 0.12);
}
.menu-toggle {
  display: none;
  font-size: 20px;
  color: #fff;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: background var(--transition);
}
.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  background: var(--primary);
  color: #fff;
  overflow: hidden;
  padding: 144px 0 72px;
  min-height: 640px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  opacity: 0.55;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(620px 340px at 18% 18%, rgba(45, 214, 141, 0.18), transparent),
    radial-gradient(540px 300px at 82% 72%, rgba(212, 162, 51, 0.14), transparent),
    linear-gradient(180deg, rgba(11, 43, 31, 0.25), rgba(11, 43, 31, 0.65));
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 60px;
  align-items: center;
}
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.live-panel {
  width: 100%;
  max-width: 480px;
  background: rgba(18, 53, 41, 0.72);
  border: 1px solid rgba(45, 214, 141, 0.24);
  border-radius: 20px;
  padding: 24px;
  backdrop-filter: blur(6px);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.28);
}
.live-panel-top {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 0 rgba(45, 214, 141, 0.6);
  animation: pulse 1.8s infinite;
}
.live-pulse {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--neon);
  border: 1px solid rgba(45, 214, 141, 0.3);
  padding: 2px 8px;
  border-radius: 20px;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(45, 214, 141, 0.45); }
  70% { box-shadow: 0 0 0 10px rgba(45, 214, 141, 0); }
  100% { box-shadow: 0 0 0 0 rgba(45, 214, 141, 0); }
}
.live-panel-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 0 20px;
}
.live-team {
  flex: 1;
  text-align: center;
}
.team-avatar {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--neon), #10855A);
  color: var(--primary);
  font-size: 24px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
  box-shadow: 0 4px 16px rgba(45, 214, 141, 0.25);
}
.live-team:nth-child(3) .team-avatar {
  background: linear-gradient(135deg, var(--gold), #9A6B14);
  color: #1F1400;
  box-shadow: 0 4px 16px rgba(212, 162, 51, 0.22);
}
.team-name {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.86);
}
.team-score {
  font-size: 28px;
  font-weight: 800;
  font-family: "DIN Alternate", "Barlow Condensed", "Oswald", sans-serif;
  color: #fff;
  line-height: 1.2;
  letter-spacing: 0.04em;
}
.live-vs {
  font-size: 14px;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: 0.2em;
  padding: 0 6px;
}
.live-panel-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}
.live-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 14px;
}
.live-bar span {
  display: block;
  height: 100%;
  width: 72%;
  background: linear-gradient(90deg, var(--neon), var(--gold));
  border-radius: 20px;
}
.live-stats {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.live-stats div {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  padding: 8px 12px;
  flex: 1;
  text-align: center;
}
.live-stats span {
  display: block;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 2px;
}
.live-stats strong {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  font-family: "DIN Alternate", "Barlow Condensed", "Oswald", sans-serif;
  letter-spacing: 0.04em;
}
.hero-content {
  position: relative;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--neon);
  background: rgba(45, 214, 141, 0.1);
  border: 1px solid rgba(45, 214, 141, 0.3);
  padding: 4px 14px;
  border-radius: 40px;
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}
.hero-content h1 {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: -0.015em;
}
.hero-sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.72);
  max-width: 400px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-actions .btn i {
  transition: transform var(--transition);
}
.hero-actions .btn:hover i {
  transform: translateX(4px);
}

/* ========== Ticker ========== */
.ticker {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  background: rgba(11, 43, 31, 0.78);
  border-top: 1px solid rgba(45, 214, 141, 0.3);
  backdrop-filter: blur(4px);
  overflow: hidden;
}
.ticker-track {
  display: flex;
  gap: 0;
  white-space: nowrap;
  animation: tickerMove 30s linear infinite;
}
.ticker:hover .ticker-track {
  animation-play-state: paused;
}
.ticker-track span {
  display: inline-block;
  padding: 10px 32px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.72);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  letter-spacing: 0.04em;
}
.ticker-track span:first-child {
  padding-left: 24px;
}
@keyframes tickerMove {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========== Play Section ========== */
.play-section {
  background: var(--bg-light);
  padding: var(--section-pad) 0;
}
.step-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.step-list::before {
  content: "";
  position: absolute;
  top: 40px;
  bottom: 40px;
  left: 50%;
  width: 0;
  border-left: 2px dashed rgba(45, 214, 141, 0.36);
  transform: translateX(-1px);
}
.step-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  position: relative;
}
.step-number {
  font-family: "DIN Alternate", "Barlow Condensed", "Oswald", sans-serif;
  font-size: 92px;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px var(--neon);
  letter-spacing: 0.02em;
  user-select: none;
}
.step-content {
  background: #fff;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}
.step-content::before {
  content: "";
  position: absolute;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--neon);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px rgba(45, 214, 141, 0.4);
}
.step-row:nth-child(odd) .step-content::before {
  right: -33px;
}
.step-row:nth-child(even) .step-content::before {
  left: -33px;
}
.step-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.step-content h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.step-content h3 i {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(45, 214, 141, 0.1);
  color: #1A9E64;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.step-content p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 12px;
}
.step-content .step-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--neon);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}
.step-content .step-link i {
  transition: transform var(--transition);
}
.step-content .step-link:hover i {
  transform: translateX(3px);
}
.step-row:nth-child(even) .step-number {
  order: 2;
  -webkit-text-stroke: 2px var(--gold);
  text-align: right;
}
.step-row:nth-child(even) .step-content {
  order: 1;
}

/* ========== Rewards ========== */
.reward-section {
  background: var(--primary);
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--gold);
  position: relative;
  overflow: hidden;
}
.reward-section::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(212, 162, 51, 0.06);
  top: -120px;
  right: -120px;
}
.reward-section .section-head h2 {
  color: #fff;
}
.reward-section .section-head .section-sub {
  color: rgba(255, 255, 255, 0.5);
}
.reward-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 24px;
  position: relative;
  z-index: 2;
}
.reward-card-main {
  background: var(--primary-card);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  color: #fff;
  display: flex;
  flex-direction: column;
}
.reward-card-main:hover {
  border-color: var(--gold);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.24);
  transform: translateY(-4px);
}
.reward-card-main .reward-img {
  height: 220px;
  width: 100%;
  overflow: hidden;
}
.reward-card-main .reward-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.reward-card-main:hover .reward-img img {
  transform: scale(1.03);
}
.reward-card-main .reward-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.reward-card-main .reward-body .badge {
  align-self: flex-start;
  margin-bottom: 12px;
}
.reward-card-main h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}
.reward-card-main p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 16px;
  line-height: 1.65;
}
.reward-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 700;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.reward-link i {
  transition: transform var(--transition);
}
.reward-link:hover i {
  transform: translateX(3px);
}
.reward-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}
.reward-card-mini {
  background: var(--primary-card);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  color: #fff;
  display: flex;
  flex-direction: column;
}
.reward-card-mini:hover {
  border-color: var(--gold);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transform: translateY(-4px);
}
.reward-card-mini .reward-img {
  height: 120px;
  width: 100%;
  overflow: hidden;
}
.reward-card-mini .reward-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.reward-card-mini:hover .reward-img img {
  transform: scale(1.03);
}
.reward-card-mini .reward-body {
  padding: 16px 20px 20px;
}
.reward-card-mini h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}
.reward-card-mini .reward-tag {
  font-size: 12px;
  color: var(--gold);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ========== Task Section ========== */
.task-section {
  background: var(--bg-light);
  padding: var(--section-pad) 0;
}
.task-panel {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  gap: 32px;
  box-shadow: 0 16px 44px rgba(11, 43, 31, 0.2);
  position: relative;
  overflow: hidden;
}
.task-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon), var(--gold), transparent);
}
.task-steps {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
}
.task-steps::before {
  content: "";
  position: absolute;
  top: 30px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
}
.task-steps::after {
  content: "";
  position: absolute;
  top: 30px;
  left: 12%;
  width: 48%;
  height: 2px;
  background: var(--neon);
  box-shadow: 0 0 8px rgba(45, 214, 141, 0.5);
}
.task-step {
  text-align: center;
  position: relative;
  z-index: 2;
}
.task-step .task-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 20px;
  color: rgba(255, 255, 255, 0.5);
  transition: all var(--transition);
}
.task-step.done .task-icon {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(45, 214, 141, 0.35);
}
.task-step.active .task-icon {
  border-color: var(--gold);
  color: var(--gold);
  box-shadow: 0 0 0 6px rgba(212, 162, 51, 0.1);
}
.task-step h4 {
  font-size: 15px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 3px;
}
.task-step span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
}
.task-step.done span {
  color: var(--neon);
}
.task-cta {
  text-align: center;
  flex-shrink: 0;
}
.task-cta .btn {
  white-space: nowrap;
}

/* ========== CTA Section ========== */
.cta-section {
  background: var(--bg-white);
  padding: 76px 0;
  text-align: center;
}
.cta-section h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 32px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 28px;
}
.cta-tags {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}
.cta-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-sub);
  background: var(--bg-light);
  border: 1px solid var(--line-light);
  border-radius: 40px;
  padding: 6px 16px;
}
.cta-tags span i {
  color: var(--neon);
}

/* ========== News Section ========== */
.news-section {
  background: var(--bg-light);
  padding: var(--section-pad) 0;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.news-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-white);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  padding: 14px 20px 14px 14px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text-main);
  overflow: hidden;
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(45, 214, 141, 0.4);
}
.news-thumb {
  width: 160px;
  height: 96px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--line-light);
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.04);
}
.news-info {
  flex: 1;
  min-width: 0;
}
.news-info h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-info p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-disabled);
}
.news-arrow {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  font-size: 15px;
  flex-shrink: 0;
  transition: all var(--transition);
}
.news-card:hover .news-arrow {
  background: var(--neon);
  color: var(--primary);
  transform: translateX(3px);
}
.load-more-wrap {
  text-align: center;
  margin-top: 36px;
}
.empty-state {
  border: 2px dashed var(--line-light);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-disabled);
}
.empty-state i {
  font-size: 36px;
  margin-bottom: 12px;
  color: var(--line-light);
}
.empty-state p {
  font-size: 15px;
  font-weight: 600;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--bg-light);
  padding: var(--section-pad) 0 96px;
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.25s ease;
}
.faq-item.expanded {
  border-left: 2px solid var(--neon);
  box-shadow: var(--shadow-sm);
}
.faq-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  text-align: left;
  transition: background var(--transition);
}
.faq-title:hover {
  background: rgba(45, 214, 141, 0.03);
}
.faq-title i {
  color: var(--neon);
  font-size: 14px;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-item.expanded .faq-title i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-answer p {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.75;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid rgba(45, 214, 141, 0.3);
  padding: 60px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer-brand .logo {
  margin-bottom: 14px;
}
.footer-brand .footer-desc {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
  max-width: 240px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul li a:hover {
  color: var(--neon);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 12px;
}
.footer-contact li i {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon);
  font-size: 13px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom .copyright {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-bottom .legal {
  display: flex;
  gap: 24px;
}
.footer-bottom .legal a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-bottom .legal a:hover {
  color: #fff;
}

/* ========== Responsive ========== */
@media (max-width: 1200px) {
  .container {
    padding: 0 16px;
  }
  .site-header {
    height: 56px;
  }
  .header-inner {
    height: 56px;
    gap: 10px;
  }
  .menu-toggle {
    display: flex;
    order: -1;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin: 0;
    padding: 12px 16px 20px;
    border-bottom: 1px solid var(--line-dark);
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.24);
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    display: block;
    font-size: 16px;
    padding: 14px 4px;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.86);
  }
  .nav-link::after {
    display: none;
  }
  .nav-link.active {
    color: var(--neon);
  }
  .header-actions .search-wrap {
    display: none;
  }
  .hero {
    padding: 120px 0 60px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-visual {
    order: 1;
  }
  .hero-content {
    order: 2;
  }
  .live-panel {
    max-width: 100%;
  }
  .hero-content h1 {
    font-size: 36px;
  }
  .task-panel {
    flex-direction: column;
    padding: 28px 24px;
  }
  .task-steps {
    width: 100%;
  }
  .task-cta .btn {
    width: 100%;
  }
}
@media (max-width: 992px) {
  .section {
    padding: 60px 0;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 32px;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .step-list::before {
    display: none;
  }
  .step-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .step-row:nth-child(even) .step-number,
  .step-row:nth-child(odd) .step-number {
    order: 0;
    text-align: left;
    font-size: 56px;
  }
  .step-row:nth-child(even) .step-content,
  .step-row:nth-child(odd) .step-content {
    order: 1;
  }
  .step-content::before {
    display: none;
  }
  .reward-grid {
    grid-template-columns: 1fr;
  }
  .reward-side {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: none;
  }
  .task-steps {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .task-steps::before,
  .task-steps::after {
    display: none;
  }
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 30px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .news-card {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 12px;
  }
  .news-thumb {
    width: 100%;
    height: 156px;
  }
  .news-arrow {
    display: none;
  }
  .reward-side {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-bottom .legal {
    gap: 16px;
  }
}
@media (max-width: 480px) {
  .site-header {
    height: 56px;
  }
  .header-inner {
    height: 56px;
  }
  .logo-brand {
    font-size: 18px;
  }
  .logo-sub {
    font-size: 10px;
  }
  .header-actions .btn {
    padding: 0 14px;
    font-size: 13px;
    height: 34px;
  }
  .hero {
    padding: 110px 0 48px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .task-steps {
    grid-template-columns: 1fr 1fr;
  }
  .cta-section h2 {
    font-size: 26px;
  }
  .cta-tags {
    flex-direction: column;
    align-items: center;
  }
  .btn-lg {
    height: 52px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0B2B1F;
  --primary-800: #123529;
  --accent: #2DD68D;
  --accent-bright: #3BE89A;
  --gold: #D4A233;
  --light-bg: #F4F6F0;
  --white: #FFFFFF;
  --text-main: #14241D;
  --text-secondary: #587365;
  --text-disabled: #9AAFA5;
  --border-light: #E2E8E0;
  --border-dark: #2A4A3C;
  --danger: #E74C3C;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(11,43,31,.04);
  --shadow-md: 0 8px 24px rgba(11,43,31,.10);
  --shadow-lg: 0 16px 32px rgba(11,43,31,.16);
  --container: 1200px;
  --gutter: 24px;
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
  --font-display: 'Barlow Condensed', 'Oswald', 'DIN Alternate', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 15px;
  line-height: 1;
  border: 1.5px solid transparent;
  transition: all .2s ease;
  letter-spacing: .02em;
}
.btn-primary { background: var(--accent); color: var(--primary); }
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(45,214,141,.25); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline { background: transparent; border-color: var(--gold); color: var(--gold); }
.btn-outline:hover { background: rgba(212,162,51,.10); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(212,162,51,.15); }
.btn-outline:active { transform: translateY(1px); }
.btn-lg { height: 56px; padding: 0 40px; font-size: 17px; }
.btn-sm { height: 40px; padding: 0 18px; font-size: 13px; }
.btn .fa-arrow-right, .btn .fa-angle-right { transition: transform .2s ease; }
.btn:hover .fa-arrow-right, .btn:hover .fa-angle-right { transform: translateX(4px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(45,214,141,.3); }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  line-height: 1.4;
  white-space: nowrap;
}
.tag-green { color: var(--accent); border: 1px solid rgba(45,214,141,.55); }
.tag-gold { color: var(--gold); border: 1px solid rgba(212,162,51,.6); background: rgba(212,162,51,.06); }
.tag-red { color: var(--danger); border: 1px solid rgba(231,76,60,.35); background: rgba(231,76,60,.05); }
.section-head { margin-bottom: 40px; }
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: .01em;
}
.section-head p { font-size: 15px; color: var(--text-secondary); margin-top: 10px; max-width: 600px; line-height: 1.8; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background: rgba(11,43,31,.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(45,214,141,.3);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 30px;
}
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  flex-shrink: 0;
}
.logo-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: .04em;
}
.logo-sub {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  letter-spacing: .18em;
}
.nav-toggle { display: none; color: var(--accent); font-size: 22px; padding: 8px; }
.main-nav { display: flex; gap: 4px; align-items: center; }
.nav-link {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,.78);
  padding: 8px 12px;
  position: relative;
  transition: color .2s ease;
  letter-spacing: .02em;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform .25s ease;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: #fff; }
.nav-link.active::after { transform: scaleX(1); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.search-btn { color: rgba(255,255,255,.85); font-size: 18px; padding: 8px 10px; border-radius: var(--radius-sm); transition: color .2s ease; }
.search-btn:hover { color: var(--accent); }
.header-cta { height: 40px; padding: 0 18px; font-size: 14px; }

/* ===== Category Hero ===== */
.cat-hero {
  background: linear-gradient(135deg, #0B2B1F 0%, #123529 65%, #0B2B1F 100%);
  position: relative;
  overflow: hidden;
  padding: 72px 0 64px;
  border-bottom: 1px solid rgba(45,214,141,.25);
}
.cat-hero::before {
  content: '';
  position: absolute;
  top: -42%;
  right: -8%;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45,214,141,.20), transparent 62%);
  pointer-events: none;
}
.cat-hero::after {
  content: '';
  position: absolute;
  bottom: -55%;
  left: 30%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,162,51,.12), transparent 62%);
  pointer-events: none;
}
.cat-hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  min-height: 220px;
}
.cat-hero-content { max-width: 680px; }
.cat-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  margin-bottom: 14px;
}
.cat-eyebrow::before {
  content: '';
  display: inline-block;
  width: 26px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}
.cat-hero h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: .01em;
}
.cat-hero h1 .hero-sep { color: var(--accent); margin: 0 6px; font-weight: 900; }
.cat-hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,.72);
  max-width: 540px;
  line-height: 1.8;
}
.cat-hero-visual {
  flex: 0 0 320px;
  height: 210px;
  border-radius: var(--radius);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  border: 1px solid rgba(45,214,141,.35);
  position: relative;
  box-shadow: 0 12px 32px rgba(0,0,0,.28);
}
.cat-hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(11,43,31,.10), rgba(11,43,31,.48));
}
.cat-hero-visual span {
  position: absolute;
  bottom: 14px;
  left: 16px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  z-index: 1;
  letter-spacing: .05em;
}

/* ===== Intro ===== */
.cat-intro { padding: 80px 0; background: var(--light-bg); }
.cat-intro-grid { display: grid; grid-template-columns: 460px 1fr; gap: 56px; align-items: center; }
.cat-intro-media { border-radius: var(--radius); overflow: hidden; position: relative; box-shadow: var(--shadow-md); }
.cat-intro-media img { height: 320px; width: 100%; object-fit: cover; }
.cat-intro-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(11,43,31,.28), transparent 42%); }
.cat-intro-text h2 { font-size: 32px; font-weight: 800; line-height: 1.3; color: var(--text-main); margin-bottom: 16px; letter-spacing: .01em; }
.cat-intro-text p { font-size: 15px; color: var(--text-secondary); line-height: 1.9; margin-bottom: 26px; }
.cat-intro-text .btn { margin-right: 12px; margin-bottom: 8px; }

/* ===== Featured Cards ===== */
.cat-featured { padding: 80px 0; background: var(--white); }
.featured-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; align-items: stretch; }
.featured-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: flex;
  flex-direction: column;
}
.featured-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gold); }
.featured-card .card-media { overflow: hidden; aspect-ratio: 16 / 9; background: #E2E8E0; position: relative; }
.featured-card .card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.featured-card:hover .card-media img { transform: scale(1.03); }
.featured-card .card-media .tag { position: absolute; top: 14px; left: 14px; z-index: 2; }
.card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 20px; font-weight: 800; color: var(--text-main); margin-top: 10px; margin-bottom: 10px; line-height: 1.4; }
.card-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 18px; flex: 1; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  transition: color .2s ease;
  margin-top: 4px;
}
.card-link i { transition: transform .2s ease; }
.card-link:hover { color: var(--accent); }
.card-link:hover i { transform: translateX(4px); }
.featured-stack { display: flex; flex-direction: column; gap: 24px; }
.featured-small .card-media { aspect-ratio: 16 / 7; }
.featured-small .card-body { padding: 20px; }
.featured-small .card-body h3 { font-size: 18px; font-weight: 700; margin-top: 8px; margin-bottom: 8px; }
.featured-small .tag { align-self: flex-start; }
.featured-small .card-body p { font-size: 13px; margin-bottom: 12px; }

/* ===== Updates ===== */
.cat-updates { padding: 80px 0; background: var(--light-bg); }
.update-list { max-width: 900px; }
.update-item {
  display: flex;
  gap: 28px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border-light);
  transition: background .2s ease;
}
.update-item:first-child { padding-top: 0; }
.update-meta { flex: 0 0 150px; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.update-date { font-size: 13px; color: var(--text-secondary); font-family: var(--font-display); letter-spacing: .04em; font-weight: 600; }
.update-content h4 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 6px; }
.update-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; max-width: 640px; }

/* ===== FAQ ===== */
.cat-faq { padding: 80px 0; background: var(--white); }
.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item {
  background: var(--light-bg);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease;
}
.faq-item.open { border-color: var(--accent); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  text-align: left;
  background: none;
  transition: color .2s ease;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  flex-shrink: 0;
  transition: transform .25s ease, background .2s ease;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--gold); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  padding: 0 24px;
}
.faq-item.open .faq-answer { max-height: 240px; padding: 0 24px 20px; }
.faq-answer p { font-size: 14px; color: var(--text-secondary); line-height: 1.85; }

/* ===== CTA ===== */
.cat-cta { padding: 80px 0; background: var(--light-bg); }
.cta-panel {
  background: var(--primary);
  border-radius: var(--radius);
  text-align: center;
  padding: 56px 24px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.cta-panel::before {
  content: '';
  position: absolute;
  top: -70px;
  right: -70px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45,214,141,.28), transparent 70%);
}
.cta-panel::after {
  content: '';
  position: absolute;
  bottom: -70px;
  left: -70px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,162,51,.16), transparent 70%);
}
.cta-panel h2 { font-size: 30px; font-weight: 800; color: #fff; margin-bottom: 10px; position: relative; z-index: 1; }
.cta-panel p { font-size: 15px; color: rgba(255,255,255,.7); margin-bottom: 28px; position: relative; z-index: 1; }
.cta-panel .btn { position: relative; z-index: 1; }

/* ===== Terms ===== */
.cat-terms { padding: 24px 0 56px; background: var(--light-bg); }
.cat-terms p {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  border-top: 1px solid rgba(45,214,141,.3);
  color: rgba(255,255,255,.78);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-desc { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.6); max-width: 320px; }
.footer-col h4 { font-size: 15px; color: #fff; font-weight: 700; margin-bottom: 16px; letter-spacing: .02em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color .2s ease;
}
.footer-col a:hover { color: var(--accent); }
.footer-col a i { font-size: 12px; }
.footer-contact li { font-size: 14px; color: rgba(255,255,255,.6); display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.footer-contact i { font-size: 14px; color: var(--accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 24px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
.legal { display: flex; gap: 24px; }
.legal a { color: rgba(255,255,255,.5); transition: color .2s ease; }
.legal a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .header-inner { gap: 16px; }
  .cat-intro-grid { grid-template-columns: 380px 1fr; gap: 40px; }
  .cat-hero h1 { font-size: 38px; }
}
@media (max-width: 992px) {
  .site-header { height: 56px; }
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--primary);
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid rgba(45,214,141,.3);
    box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: flex; }
  .main-nav .nav-link { font-size: 20px; padding: 12px 16px; }
  .main-nav .nav-link::after { display: none; }
  .header-actions { gap: 8px; }
  .header-cta { font-size: 13px; padding: 0 14px; }
  .cat-hero { padding: 48px 0; }
  .cat-hero-inner { flex-direction: column; gap: 20px; text-align: center; }
  .cat-hero-content { max-width: 100%; }
  .cat-hero-desc { margin: 0 auto; }
  .cat-hero-visual { display: none; }
  .cat-eyebrow { justify-content: center; }
  .cat-intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .cat-intro-media img { height: 260px; }
  .featured-grid { grid-template-columns: 1fr; }
  .featured-stack { flex-direction: row; }
  .featured-stack .featured-small { flex: 1; }
  .cat-featured, .cat-intro, .cat-updates, .cat-faq, .cat-cta { padding: 56px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .cat-hero h1 { font-size: 30px; }
  .cat-hero-desc { font-size: 15px; }
  .section-head h2 { font-size: 24px; }
  .cat-intro-text h2 { font-size: 26px; }
  .featured-stack { flex-direction: column; }
  .featured-small .card-media { aspect-ratio: 16 / 8; }
  .update-item { flex-direction: column; gap: 10px; }
  .update-meta { flex-direction: row; align-items: center; gap: 12px; }
  .cta-panel h2 { font-size: 24px; }
  .cta-panel { padding: 40px 20px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .legal { gap: 16px; }
}
@media (max-width: 480px) {
  .btn { width: 100%; }
  .header-cta { width: auto; }
  .header-actions .search-btn { display: none; }
  .cat-hero h1 { font-size: 26px; }
  .featured-card .card-media { aspect-ratio: 16 / 9; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-desc { max-width: 100%; }
}

/* roulang page: article */
:root {
  --primary: #0B2B1F;
  --primary-light: #123529;
  --accent: #2DD68D;
  --accent-hover: #3BE89A;
  --gold: #D4A233;
  --light-bg: #F4F6F0;
  --card-bg: #ffffff;
  --text-main: #14241D;
  --text-secondary: #587365;
  --text-muted: #9AAFA5;
  --border-light: #E2E8E0;
  --border-dark: #2A4A3C;
  --danger: #E74C3C;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(11,43,31,.04);
  --shadow-md: 0 8px 24px rgba(11,43,31,.08);
  --shadow-lg: 0 8px 24px rgba(11,43,31,.10);
  --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-display: 'Barlow Condensed','Oswald','DIN Alternate','PingFang SC',sans-serif;
}
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:var(--font-sans); color:var(--text-main); background:var(--light-bg); line-height:1.75; -webkit-font-smoothing:antialiased; }
ul,ol { list-style:none; }
a { text-decoration:none; color:inherit; }
img { max-width:100%; display:block; }
button { font-family:inherit; cursor:pointer; }
input,textarea { font-family:inherit; }
.visually-hidden { position:absolute; width:1px; height:1px; margin:-1px; padding:0; overflow:hidden; clip:rect(0,0,0,0); border:0; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; }

/* �阅读进度条 */
.reading-progress { position:absolute; bottom:-2px; left:0; right:0; height:2px; background:transparent; z-index:5; }
.reading-progress span { display:block; height:100%; width:0; background:linear-gradient(90deg,var(--accent),var(--gold)); transition:width .1s linear; }

/* �顶栏导航 */
.site-header { position:sticky; top:0; z-index:100; background:rgba(11,43,31,.92); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); border-bottom:1px solid rgba(45,214,141,.3); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:64px; }
.header-left { display:flex; align-items:center; gap:32px; min-width:0; }
.logo { display:inline-flex; flex-direction:column; line-height:1.1; flex-shrink:0; }
.logo-brand { font-family:var(--font-display); font-size:22px; font-weight:800; color:var(--accent); letter-spacing:.02em; }
.logo-sub { font-size:12px; font-weight:600; color:#fff; letter-spacing:.1em; }
.main-nav { display:flex; align-items:center; gap:2px; }
.nav-link { display:inline-block; padding:8px 14px; color:rgba(255,255,255,.75); font-size:14px; font-weight:500; border-radius:6px; position:relative; transition:color .2s ease, background .2s ease; }
.nav-link:hover { color:#fff; background:rgba(45,214,141,.08); }
.nav-link:focus-visible { outline:none; box-shadow:0 0 0 3px rgba(45,214,141,.3); }
.nav-link.active { color:var(--accent); font-weight:600; }
.nav-link.active::after { content:''; position:absolute; bottom:0; left:14px; right:14px; height:2px; background:var(--accent); border-radius:2px; }
.header-right { display:flex; align-items:center; gap:14px; flex-shrink:0; }
.icon-btn { width:40px; height:40px; border-radius:50%; border:1px solid rgba(255,255,255,.15); background:transparent; color:#fff; display:inline-flex; align-items:center; justify-content:center; font-size:15px; transition:all .2s ease; }
.icon-btn:hover { border-color:var(--accent); color:var(--accent); background:rgba(45,214,141,.1); }
.icon-btn:focus-visible { outline:none; box-shadow:0 0 0 3px rgba(45,214,141,.3); }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:6px; border-radius:8px; font-weight:700; transition:all .2s ease; border:none; }
.btn:focus-visible { outline:none; box-shadow:0 0 0 3px rgba(45,214,141,.3); }
.btn-primary { background:var(--accent); color:var(--primary); }
.btn-primary:hover { background:var(--accent-hover); transform:translateY(-2px); box-shadow:0 6px 16px rgba(45,214,141,.25); }
.btn-primary:active { transform:translateY(0); box-shadow:none; }
.btn-sm { height:40px; padding:0 20px; font-size:14px; }
.menu-toggle { display:none; width:40px; height:40px; border-radius:8px; border:1px solid rgba(255,255,255,.15); background:transparent; color:#fff; font-size:18px; align-items:center; justify-content:center; transition:all .2s ease; }
.menu-toggle:hover { border-color:var(--accent); color:var(--accent); }

/* �文章页 TDK 头部 */
.article-hero { background:var(--light-bg); padding:40px 0 36px; border-bottom:1px solid var(--border-light); }
.article-hero .container { max-width:880px; }
.page-kicker { display:inline-flex; align-items:center; gap:6px; background:rgba(45,214,141,.12); border:1px solid rgba(45,214,141,.3); color:var(--primary); font-size:13px; font-weight:700; padding:4px 14px; border-radius:20px; margin-bottom:14px; letter-spacing:.02em; }
.page-kicker i { color:var(--accent); font-size:12px; }
.article-hero-title { font-size:36px; font-weight:900; line-height:1.25; color:var(--text-main); margin-bottom:10px; }
.article-hero-desc { font-size:14px; color:var(--text-secondary); line-height:1.7; max-width:760px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }

/* �面包屑 */
.breadcrumb-wrap { background:var(--light-bg); border-bottom:1px solid var(--border-light); }
.breadcrumb { max-width:740px; margin:0 auto; display:flex; align-items:center; gap:8px; padding:14px 24px; font-size:14px; color:var(--text-muted); flex-wrap:wrap; }
.breadcrumb a { transition:color .2s ease; }
.breadcrumb a:hover { color:var(--accent); }
.breadcrumb i { font-size:10px; color:var(--text-muted); }
.breadcrumb .crumb-cat { color:var(--text-secondary); }
.breadcrumb .crumb-current { color:var(--primary); font-weight:700; max-width:340px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* �正文阅读区 */
.article-main { padding:48px 0 80px; background:var(--light-bg); }
.article-container { max-width:740px; margin:0 auto; background:var(--card-bg); border-radius:20px; padding:44px 48px; box-shadow:var(--shadow-sm); border:1px solid var(--border-light); }
.article-title { font-size:32px; font-weight:900; line-height:1.3; color:var(--text-main); margin-bottom:16px; }
.article-meta { display:flex; flex-wrap:wrap; gap:20px; padding-bottom:24px; margin-bottom:32px; border-bottom:1px solid var(--border-light); font-size:13px; color:var(--text-secondary); }
.meta-item { display:inline-flex; align-items:center; gap:6px; }
.meta-item i { font-size:13px; color:var(--accent); }
.article-content { font-size:16px; line-height:1.85; color:#1c2d24; word-break:break-word; }
.article-content p { margin-bottom:20px; }
.article-content p:last-child { margin-bottom:0; }
.article-content h2 { font-size:24px; font-weight:800; color:var(--text-main); margin:36px 0 16px; line-height:1.3; }
.article-content h3 { font-size:20px; font-weight:700; color:var(--text-main); margin:28px 0 12px; line-height:1.3; }
.article-content h4 { font-size:17px; font-weight:700; color:var(--text-main); margin:22px 0 10px; }
.article-content blockquote { border-left:4px solid var(--accent); background:var(--light-bg); padding:16px 20px; margin:24px 0; border-radius:0 8px 8px 0; color:var(--text-secondary); font-size:15px; }
.article-content blockquote p { margin-bottom:8px; }
.article-content blockquote p:last-child { margin-bottom:0; }
.article-content ul { margin:16px 0 20px; padding-left:0; }
.article-content ul li { position:relative; padding-left:20px; margin-bottom:8px; }
.article-content ul li::before { content:''; position:absolute; left:0; top:10px; width:8px; height:8px; border-radius:50%; background:var(--accent); }
.article-content ol { margin:16px 0 20px; padding-left:20px; counter-reset:article-ol; }
.article-content ol li { counter-increment:article-ol; margin-bottom:8px; padding-left:4px; }
.article-content ol li::marker { font-weight:700; color:var(--primary); }
.article-content a { color:var(--primary); text-decoration:underline; text-underline-offset:3px; transition:color .2s ease; }
.article-content a:hover { color:var(--accent); }
.article-content img { border-radius:12px; margin:24px 0; width:100%; height:auto; }
.article-content figure { margin:24px 0; }
.article-content figure img { margin:0; }
.article-content figcaption { font-size:13px; color:var(--text-muted); text-align:center; margin-top:10px; }
.article-content code { background:var(--light-bg); padding:2px 6px; border-radius:4px; font-size:14px; font-family:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace; }
.article-content pre { background:var(--primary); color:#fff; padding:20px; border-radius:8px; overflow-x:auto; margin:24px 0; line-height:1.6; font-size:14px; }
.article-content pre code { background:transparent; padding:0; color:inherit; }
.article-content table { width:100%; border-collapse:collapse; margin:20px 0; font-size:14px; }
.article-content table th, .article-content table td { border:1px solid var(--border-light); padding:10px 12px; text-align:left; }
.article-content table th { background:var(--light-bg); font-weight:700; }
.article-content hr { border:none; border-top:1px solid var(--border-light); margin:32px 0; }

/* �正文尾部 */
.article-footer { margin-top:44px; padding-top:24px; border-top:1px solid var(--border-light); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px; }
.back-link { display:inline-flex; align-items:center; gap:8px; color:var(--text-secondary); font-size:14px; font-weight:600; transition:all .2s ease; }
.back-link:hover { color:var(--accent); transform:translateX(-4px); }
.article-share { display:inline-flex; align-items:center; gap:6px; color:var(--text-muted); font-size:13px; cursor:pointer; transition:color .2s ease; }
.article-share:hover { color:var(--primary); }

/* �相关推荐区 */
.related-section { background:var(--light-bg); padding:0 0 80px; }
.related-section .section-title { font-size:26px; font-weight:800; color:var(--text-main); margin-bottom:28px; display:flex; align-items:center; gap:10px; }
.related-section .section-title i { color:var(--accent); font-size:22px; }
.related-grid { display:grid; grid-template-columns:1fr 1.4fr 1fr; gap:24px; }
.related-card { background:var(--card-bg); border-radius:16px; overflow:hidden; border:1px solid var(--border-light); box-shadow:var(--shadow-sm); transition:all .25s ease; display:block; }
.related-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:rgba(45,214,141,.4); }
.related-card.featured { grid-column:auto; }
.related-card .card-img { aspect-ratio:16/9; overflow:hidden; background:var(--border-light); }
.related-card .card-img img { width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
.related-card:hover .card-img img { transform:scale(1.03); }
.related-card .card-body { padding:20px; }
.related-card .card-tag { display:inline-flex; align-items:center; gap:4px; font-size:12px; font-weight:600; color:var(--primary); background:rgba(45,214,141,.1); border:1px solid rgba(45,214,141,.3); padding:2px 10px; border-radius:4px; margin-bottom:10px; }
.related-card.featured .card-title { font-size:20px; }
.related-card .card-title { font-size:17px; font-weight:700; line-height:1.4; color:var(--text-main); transition:color .2s ease; }
.related-card:hover .card-title { color:var(--accent); }
.related-card .card-summary { font-size:13px; color:var(--text-secondary); margin-top:8px; line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }

/* �文章未找到 */
.error-main { padding:100px 0; background:var(--light-bg); min-height:50vh; }
.not-found { text-align:center; background:var(--card-bg); border-radius:20px; border:1px dashed var(--border-light); box-shadow:var(--shadow-sm); padding:64px 32px; max-width:560px; margin:0 auto; }
.not-found i { font-size:52px; color:var(--text-muted); margin-bottom:16px; display:block; }
.not-found h2 { font-size:24px; font-weight:800; margin-bottom:8px; color:var(--text-main); }
.not-found p { color:var(--text-secondary); margin-bottom:24px; font-size:15px; }
.not-found .btn { height:48px; padding:0 32px; font-size:15px; }

/* �页脚 */
.site-footer { background:var(--primary); color:rgba(255,255,255,.8); border-top:1px solid rgba(45,214,141,.3); padding:64px 0 0; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:48px; }
.footer-brand .logo { margin-bottom:16px; }
.footer-desc { font-size:14px; color:rgba(255,255,255,.6); max-width:280px; margin-top:14px; line-height:1.7; }
.footer-col h4 { color:#fff; font-size:16px; font-weight:700; margin-bottom:18px; }
.footer-col ul li { margin-bottom:10px; }
.footer-col a { color:rgba(255,255,255,.7); font-size:14px; display:inline-flex; align-items:center; gap:8px; transition:color .2s ease; }
.footer-col a:hover { color:var(--accent); }
.footer-col i { font-size:12px; color:var(--accent); }
.footer-contact li { color:rgba(255,255,255,.7); font-size:14px; display:flex; align-items:center; gap:10px; }
.footer-contact li i { color:var(--accent); width:16px; text-align:center; }
.footer-bottom { display:flex; justify-content:space-between; align-items:center; padding:20px 0; border-top:1px solid rgba(255,255,255,.1); font-size:13px; color:rgba(255,255,255,.6); flex-wrap:wrap; gap:8px; }
.footer-bottom .legal { display:flex; gap:20px; }
.footer-bottom .legal a { color:rgba(255,255,255,.6); transition:color .2s ease; }
.footer-bottom .legal a:hover { color:#fff; }
.copyright { opacity:.6; }

/* �返回顶部 */
.back-top { position:fixed; right:24px; bottom:24px; width:44px; height:44px; border-radius:50%; background:var(--primary); color:var(--accent); border:1px solid rgba(45,214,141,.4); display:flex; align-items:center; justify-content:center; font-size:16px; opacity:0; visibility:hidden; transform:translateY(10px); transition:all .3s ease; z-index:99; }
.back-top.visible { opacity:1; visibility:visible; transform:translateY(0); }
.back-top:hover { background:var(--primary-light); transform:translateY(-3px); box-shadow:0 6px 16px rgba(11,43,31,.3); }
.back-top:focus-visible { outline:none; box-shadow:0 0 0 3px rgba(45,214,141,.3); }

/* �响应式断点 */
@media (max-width:1200px) {
  .container { padding:0 16px; }
  .main-nav { gap:0; }
  .nav-link { padding:8px 10px; font-size:13px; }
}
@media (max-width:992px) {
  .main-nav { position:fixed; top:64px; left:0; right:0; background:var(--primary); flex-direction:column; align-items:stretch; padding:16px; gap:4px; border-bottom:2px solid var(--accent); display:none; box-shadow:0 16px 32px rgba(0,0,0,.2); }
  .main-nav.open { display:flex; }
  .nav-link { padding:14px 16px; font-size:18px; border-radius:8px; color:rgba(255,255,255,.85); }
  .nav-link:hover { background:rgba(45,214,141,.1); }
  .nav-link.active { color:var(--accent); background:rgba(45,214,141,.08); }
  .nav-link.active::after { display:none; }
  .menu-toggle { display:inline-flex; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .related-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  .header-left { gap:12px; }
  .header-right .btn-primary span { display:none; }
  .header-right .btn-primary { padding:0 14px; }
  .article-hero { padding:28px 0 24px; }
  .article-hero-title { font-size:28px; }
  .article-hero-desc { font-size:13px; -webkit-line-clamp:3; }
  .breadcrumb { padding:12px 16px; font-size:13px; }
  .article-main { padding:24px 0 56px; }
  .article-container { padding:28px 20px; border-radius:14px; }
  .article-title { font-size:24px; }
  .article-content { font-size:15px; }
  .article-content h2 { font-size:21px; }
  .article-content h3 { font-size:18px; }
  .related-grid { grid-template-columns:1fr; }
  .related-card.featured { grid-column:auto; }
  .related-section { padding:0 0 56px; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .footer-bottom { flex-direction:column; justify-content:center; text-align:center; }
}
@media (max-width:520px) {
  .header-inner { height:56px; }
  .main-nav { top:56px; }
  .logo-brand { font-size:18px; }
  .logo-sub { font-size:10px; letter-spacing:.04em; }
  .header-right { gap:8px; }
  .icon-btn { width:36px; height:36px; }
  .menu-toggle { width:36px; height:36px; }
  .btn-sm { height:36px; padding:0 14px; font-size:13px; }
  .article-hero-title { font-size:24px; }
  .page-kicker { font-size:12px; padding:3px 10px; }
  .breadcrumb { font-size:12px; gap:6px; overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }
  .breadcrumb .crumb-current { max-width:160px; }
  .article-meta { gap:10px; font-size:12px; }
  .article-container { padding:24px 16px; border-radius:0; box-shadow:none; border:none; }
  .related-card .card-title { font-size:16px; }
  .back-top { right:16px; bottom:16px; width:40px; height:40px; }
}

/* roulang page: category2 */
:root {
            --primary: #0B2B1F;
            --primary-dark: #081F16;
            --primary-light: #123529;
            --accent: #2DD68D;
            --accent-hover: #3BE89A;
            --gold: #D4A233;
            --gold-soft: rgba(212, 162, 51, 0.12);
            --light-bg: #F4F6F0;
            --white: #ffffff;
            --text-main: #14241D;
            --text-muted: #587365;
            --text-disabled: #9AAFA5;
            --border: #E2E8E0;
            --border-dark: #2A4A3C;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(11, 43, 31, 0.04);
            --shadow-md: 0 8px 24px rgba(11, 43, 31, 0.08);
            --shadow-lg: 0 8px 24px rgba(11, 43, 31, 0.12);
            --transition: all .2s ease;
            --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 15px;
            border-radius: var(--radius-sm);
            height: 48px;
            padding: 0 28px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn i {
            transition: transform .2s ease;
        }
        .btn:hover i {
            transform: translateX(4px);
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(45, 214, 141, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(45, 214, 141, 0.35);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-outline {
            border: 1.5px solid var(--gold);
            color: var(--gold);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--gold-soft);
            transform: translateY(-2px);
        }
        .btn-lg {
            height: 56px;
            padding: 0 40px;
            font-size: 16px;
        }
        .btn-sm {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
            padding: 4px 10px;
            letter-spacing: 0.02em;
        }
        .badge-outline {
            border: 1px solid var(--accent);
            color: var(--accent);
            background: transparent;
        }
        .badge-gold {
            background: var(--gold);
            color: #0B2B1F;
        }
        .badge-hot {
            background: #E63946;
            color: #fff;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 64px;
            background: rgba(11, 43, 31, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(45, 214, 141, 0.3);
        }
        .header-inner {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
        }
        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }
        .logo-brand {
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.02em;
        }
        .logo-sub {
            color: #fff;
            font-weight: 600;
            font-size: 11px;
            letter-spacing: 0.14em;
        }
        .main-nav {
            display: flex;
            gap: 28px;
        }
        .nav-link {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 2px;
            position: relative;
            transition: color .2s ease;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transition: transform .2s ease;
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: #fff;
        }
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .icon-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: #fff;
            transition: var(--transition);
        }
        .icon-btn:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--accent);
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 20px;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .category-hero {
            background: var(--primary);
            min-height: 220px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 25% 50%, rgba(45, 214, 141, 0.18), transparent 55%);
            z-index: 1;
        }
        .category-hero-bg {
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .category-hero-inner {
            position: relative;
            z-index: 2;
            padding: 48px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .category-hero h1 {
            color: #fff;
            font-size: 44px;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: 0.01em;
        }
        .category-hero p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            margin-top: 8px;
            max-width: 420px;
        }
        .hero-line {
            display: block;
            width: 48px;
            height: 3px;
            background: var(--accent);
            margin-top: 16px;
            border-radius: 2px;
        }

        .category-intro {
            background: var(--light-bg);
            padding: 72px 0;
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: center;
        }
        .intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
            aspect-ratio: 4/3;
        }
        .intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .intro-img:hover img {
            transform: scale(1.03);
        }
        .intro-content h2 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .intro-content p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .topic-section {
            background: var(--white);
            padding: 80px 0;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-main);
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            margin-top: 6px;
        }
        .topic-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 24px;
        }
        .topic-small-col {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }
        .topic-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--gold);
        }
        .topic-img {
            overflow: hidden;
            background: #E2E8E0;
            position: relative;
        }
        .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.03);
        }
        .topic-body {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 10px 0 8px;
        }
        .topic-body p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            flex: 1;
        }
        .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            margin-top: 14px;
            transition: var(--transition);
        }
        .topic-link:hover {
            color: var(--accent);
            gap: 10px;
        }
        .card-large .topic-img {
            aspect-ratio: 16/9;
        }
        .card-small .topic-img {
            aspect-ratio: 16/7;
        }
        .card-large .topic-body {
            padding: 28px 32px;
        }
        .card-large .topic-body h3 {
            font-size: 24px;
        }
        .card-large .topic-body p {
            font-size: 15px;
            margin-bottom: 4px;
        }

        .process-section {
            background: var(--light-bg);
            padding: 80px 0;
        }
        .process-panel {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 48px 56px;
            position: relative;
            overflow: hidden;
        }
        .process-panel::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(45, 214, 141, 0.15), transparent 70%);
        }
        .process-panel .section-head h2 {
            color: #fff;
        }
        .process-panel .section-head p {
            color: rgba(255, 255, 255, 0.55);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            margin-top: 12px;
        }
        .process-grid::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 8%;
            right: 8%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--gold), var(--accent));
            opacity: 0.4;
            border-radius: 2px;
        }
        .process-step {
            position: relative;
            text-align: center;
            padding-top: 16px;
        }
        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-light);
            border: 2px solid var(--accent);
            color: var(--accent);
            font-size: 22px;
            font-weight: 800;
            margin: 0 auto 16px;
            position: relative;
            z-index: 1;
            font-family: 'Barlow Condensed', 'Oswald', 'DIN Alternate', sans-serif;
        }
        .process-step:nth-child(2) .step-num {
            border-color: var(--gold);
            color: var(--gold);
        }
        .process-step:nth-child(3) .step-num {
            border-color: var(--accent);
        }
        .process-step:nth-child(4) .step-num {
            border-color: var(--gold);
            color: var(--gold);
        }
        .process-step h3 {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            line-height: 1.6;
        }

        .faq-section {
            background: var(--white);
            padding: 80px 0;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .faq-item.active {
            background: var(--light-bg);
            border-left: 2px solid var(--accent);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            background: var(--light-bg);
            color: var(--primary);
            font-size: 14px;
            transition: transform .25s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .25s ease;
        }
        .faq-answer p {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        .cta-section {
            background: var(--light-bg);
            padding: 72px 0;
        }
        .cta-box {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 80% 20%, rgba(212, 162, 51, 0.15), transparent 50%), radial-gradient(circle at 20% 80%, rgba(45, 214, 141, 0.12), transparent 50%);
        }
        .cta-box h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 800;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 15px;
            margin: 10px 0 28px;
            position: relative;
            z-index: 1;
        }
        .cta-box .btn {
            position: relative;
            z-index: 1;
        }
        .cta-trust {
            display: flex;
            justify-content: center;
            gap: 28px;
            margin-top: 28px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-trust span {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cta-trust span i {
            color: var(--accent);
        }

        .category-notes {
            background: var(--light-bg);
            padding: 0 0 64px;
        }
        .notes-box {
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .notes-box i {
            color: var(--gold);
            margin-right: 6px;
        }

        .site-footer {
            background: var(--primary);
            border-top: 1px solid rgba(45, 214, 141, 0.3);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-col ul li a i {
            font-size: 12px;
        }
        .footer-contact li {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact li i {
            color: var(--accent);
            font-size: 15px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .copyright {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
        }
        .legal {
            display: flex;
            gap: 20px;
        }
        .legal a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            transition: var(--transition);
        }
        .legal a:hover {
            color: #fff;
        }

        @media (max-width: 1200px) {
            .container {
                padding: 0 16px;
            }
            .header-left {
                gap: 20px;
            }
            .main-nav {
                gap: 18px;
            }

            .category-hero h1 {
                font-size: 38px;
            }
            .intro-grid,
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .intro-img {
                aspect-ratio: 16/9;
                max-height: 320px;
            }
            .topic-small-col {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
                order: 2;
            }
            .card-large {
                order: 1;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px;
            }
            .process-grid::before {
                display: none;
            }
        }

        @media (max-width: 992px) {
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(11, 43, 31, 0.97);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(45, 214, 141, 0.3);
                transform: translateY(-120%);
                transition: transform .3s ease;
                z-index: 999;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .nav-link {
                font-size: 17px;
                padding: 14px 4px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-link:last-child {
                border-bottom: none;
            }
            .category-hero {
                min-height: 200px;
            }
            .category-hero-bg {
                width: 100%;
                opacity: 0.2;
            }
            .category-hero h1 {
                font-size: 34px;
            }
            .topic-section,
            .process-section,
            .faq-section {
                padding: 56px 0;
            }
            .section-head h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 768px) {
            .header-cta {
                display: none;
            }
            .intro-grid {
                gap: 28px;
            }
            .intro-content h2 {
                font-size: 24px;
            }
            .topic-small-col {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .card-small .topic-body {
                padding: 14px 16px;
            }
            .card-small .topic-body h3 {
                font-size: 16px;
            }
            .card-small .topic-body p {
                font-size: 13px;
            }
            .process-panel {
                padding: 32px 20px;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px 16px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-notes {
                padding-bottom: 48px;
            }
            .notes-box {
                padding: 16px 20px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .site-header,
            .header-inner {
                height: 56px;
            }
            .main-nav {
                top: 56px;
            }
            .logo-brand {
                font-size: 16px;
            }
            .logo-sub {
                font-size: 10px;
            }
            .category-hero {
                min-height: 180px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero p {
                font-size: 14px;
            }
            .category-intro {
                padding: 48px 0;
            }
            .topic-section,
            .process-section,
            .faq-section {
                padding: 44px 0;
            }
            .topic-small-col {
                grid-template-columns: 1fr;
            }
            .card-large .topic-body {
                padding: 20px;
            }
            .card-large .topic-body h3 {
                font-size: 20px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .process-step {
                text-align: left;
                display: flex;
                gap: 16px;
                align-items: flex-start;
            }
            .process-step .step-num {
                margin: 0;
                flex-shrink: 0;
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box p {
                font-size: 14px;
                margin-bottom: 20px;
            }
            .cta-trust {
                gap: 12px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .faq-question {
                padding: 16px 16px;
                font-size: 15px;
            }
            .faq-answer p {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category3 */
:root{
  --dark-green:#0B2B1F;
  --neon-green:#2DD68D;
  --amber:#D4A233;
  --light-bg:#F4F6F0;
  --white:#FFFFFF;
  --card-dark:#123529;
  --text-dark:#14241D;
  --text-secondary:#587365;
  --text-muted:#9AAFA5;
  --border:#E2E8E0;
  --border-dark:#2A4A3C;
  --radius:16px;
  --shadow-sm:0 2px 8px rgba(11,43,31,.04);
  --shadow-md:0 8px 24px rgba(11,43,31,.08);
  --shadow-lg:0 8px 30px rgba(11,43,31,.14);
  --container:1200px;
  --transition:.25s ease;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Barlow Condensed','Oswald','DIN Alternate','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  background:var(--light-bg);
  color:var(--text-dark);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button{border:none;background:none;cursor:pointer;font-family:inherit;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:8px;
  font-weight:800;font-size:15px;letter-spacing:.04em;
  transition:all var(--transition);border:1.5px solid transparent;cursor:pointer;
}
.btn i{transition:transform var(--transition);}
.btn:hover i{transform:translateX(4px);}
.btn-primary{background:var(--neon-green);color:var(--dark-green);border-color:var(--neon-green);}
.btn-primary:hover{background:#3BE89A;border-color:#3BE89A;box-shadow:0 8px 24px rgba(45,214,141,.25);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;color:#fff;border-color:var(--amber);}
.btn-outline:hover{background:rgba(212,162,51,.14);border-color:#E0B84D;}
.btn-outline-dark{background:transparent;color:var(--dark-green);border-color:var(--amber);}
.btn-outline-dark:hover{background:rgba(212,162,51,.12);border-color:#b98a2a;color:var(--dark-green);}
.btn-sm{height:38px;padding:0 20px;font-size:13px;border-radius:8px;}
.btn:focus-visible,.icon-btn:focus-visible,.menu-toggle:focus-visible,.nav-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(45,214,141,.35);border-radius:6px;}

/* 标签/徽章 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:4px;line-height:1.4;
}
.tag-green{color:var(--neon-green);border:1px solid var(--neon-green);background:rgba(45,214,141,.06);}
.badge{
  display:inline-block;font-size:12px;font-weight:700;padding:4px 10px;border-radius:4px;line-height:1.3;
}
.badge-gold{background:var(--amber);color:#201603;}
.badge-red{background:#E23B3B;color:#fff;}
.badge-green-outline{border:1px solid var(--neon-green);color:var(--neon-green);background:rgba(45,214,141,.08);}

/* 标题 */
.section{padding:80px 0;}
.section-head{margin-bottom:44px;max-width:720px;}
.section-head .tag{margin-bottom:12px;}
.section-head h2{font-size:34px;font-weight:800;line-height:1.25;letter-spacing:.01em;color:var(--text-dark);}
.section-head p{font-size:15px;color:var(--text-secondary);margin-top:12px;line-height:1.8;}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,43,31,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(45,214,141,.3);
}
.header-inner{display:flex;align-items:center;height:64px;gap:24px;}
.logo{display:flex;flex-direction:column;line-height:1.2;flex-shrink:0;}
.logo-brand{font-size:22px;font-weight:800;color:var(--neon-green);letter-spacing:.02em;}
.logo-sub{font-size:12px;font-weight:600;color:#fff;letter-spacing:.18em;}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto;}
.nav-link{
  font-size:14px;font-weight:600;color:rgba(255,255,255,.78);
  padding:10px 16px;position:relative;transition:color .2s ease;line-height:1.4;
}
.nav-link::after{
  content:'';position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--neon-green);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:#fff;}
.header-actions{display:flex;align-items:center;gap:12px;}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:8px;
  align-items:center;justify-content:center;font-size:20px;color:#fff;
  border:1px solid rgba(255,255,255,.2);transition:background .2s ease;
}
.menu-toggle:hover{background:rgba(255,255,255,.1);}

/* 分类 Hero */
.page-hero-cat{
  position:relative;min-height:220px;display:flex;align-items:center;
  background:var(--dark-green);overflow:hidden;
}
.page-hero-bg{
  position:absolute;top:0;right:0;width:62%;height:100%;
  background-size:cover;background-position:center;opacity:.5;
}
.page-hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(11,43,31,.97) 20%,rgba(11,43,31,.78) 55%,rgba(11,43,31,.35) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:40px 0;width:100%;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:rgba(255,255,255,.55);margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.55);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--neon-green);}
.breadcrumb .sep{color:rgba(255,255,255,.35);}
.breadcrumb .current{color:var(--neon-green);}
.cat-hero-copy h1{font-size:52px;font-weight:900;color:#fff;line-height:1.15;letter-spacing:.02em;margin-bottom:12px;}
.cat-hero-copy p{font-size:17px;color:rgba(255,255,255,.75);letter-spacing:.03em;max-width:560px;}
.hero-line{display:inline-block;width:60px;height:3px;background:var(--neon-green);border-radius:2px;margin-top:18px;}

/* 分类简介 */
.cat-intro-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:48px;align-items:center;}
.cat-intro-media{
  border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg);
  position:relative;transform:rotate(-1deg);
}
.cat-intro-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,43,31,0) 60%,rgba(11,43,31,.35));}
.cat-intro-media img{width:100%;height:380px;object-fit:cover;transition:transform .4s ease;}
.cat-intro-grid:hover .cat-intro-media img{transform:scale(1.03);}
.cat-intro-content h2{font-size:34px;font-weight:800;line-height:1.25;margin:14px 0 16px;}
.cat-intro-content p{font-size:15px;color:var(--text-secondary);line-height:1.9;margin-bottom:24px;}
.stat-row{display:flex;gap:28px;flex-wrap:wrap;margin-top:8px;}
.stat-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-secondary);font-weight:600;}
.stat-item i{color:var(--neon-green);font-size:18px;width:36px;height:36px;border-radius:50%;background:rgba(45,214,141,.12);display:flex;align-items:center;justify-content:center;}

/* 专题卡片（1大2小不对称） */
.cat-featured{background:var(--light-bg);}
.feature-cat3-grid{
  display:grid;
  grid-template-columns:0.85fr 1.4fr 0.85fr;
  grid-template-rows:auto auto;
  gap:24px;
  align-items:stretch;
}
.feature-card-large{grid-column:2;grid-row:1 / span 2;}
.feature-card-small-a{grid-column:1;grid-row:1;}
.feature-card-small-b{grid-column:3;grid-row:2;}

.feature-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--amber);}
.feature-card-media{position:relative;overflow:hidden;background:var(--border);}
.feature-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.feature-card:hover .feature-card-media img{transform:scale(1.03);}
.feature-card-body{display:flex;flex-direction:column;padding:24px 28px 28px;flex:1;}
.feature-card-body h3{font-size:22px;font-weight:800;line-height:1.35;margin-bottom:10px;color:var(--text-dark);}
.feature-card-body p{font-size:14px;color:var(--text-secondary);line-height:1.8;flex:1;margin-bottom:16px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;
  color:var(--dark-green);transition:color .2s ease;
}
.text-link i{transition:transform .2s ease;}
.text-link:hover{color:var(--neon-green);}
.text-link:hover i{transform:translateX(4px);}

.feature-card-large{background:var(--dark-green);border-color:var(--border-dark);}
.feature-card-large .feature-card-body h3{color:#fff;}
.feature-card-large .feature-card-body p{color:rgba(255,255,255,.72);}
.feature-card-large .feature-card-media{height:230px;}
.feature-card-large .feature-card-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,43,31,0) 45%,rgba(11,43,31,.55));}
.feature-card-large .badge{position:absolute;top:16px;left:16px;z-index:2;}
.feature-card-large .feature-card-body{padding:28px 32px 34px;}
.feature-card-large h3{font-size:26px;}
.feature-card-large .text-link{color:var(--neon-green);}
.feature-card-large .text-link:hover{color:#3BE89A;}

.feature-card-small .feature-card-media{height:130px;}
.feature-card-small .feature-card-body{padding:18px 20px 22px;}
.feature-card-small .badge{position:absolute;top:12px;right:12px;z-index:2;}
.feature-card-small h3{font-size:18px;margin-bottom:6px;}
.feature-card-small p{font-size:13px;line-height:1.7;margin-bottom:10px;}

/* 参与流程（深色） */
.cat-process{background:var(--dark-green);color:#fff;position:relative;overflow:hidden;}
.cat-process::before{
  content:'';position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,214,141,.16) 0%,transparent 70%);
  top:-120px;right:-100px;pointer-events:none;
}
.cat-process .section-head h2{color:#fff;}
.cat-process .section-head p{color:rgba(255,255,255,.68);}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:1;}
.process-item{
  background:rgba(18,53,41,.85);border:1px solid var(--border-dark);border-radius:var(--radius);
  padding:32px 26px;position:relative;transition:all .25s ease;
}
.process-item:hover{border-color:var(--neon-green);transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,.25);}
.process-num{
  font-family:'Barlow Condensed','Oswald',sans-serif;
  font-size:76px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--neon-green);
  margin-bottom:18px;letter-spacing:.02em;
}
.process-item h3{color:#fff;font-size:20px;font-weight:800;margin-bottom:10px;}
.process-item p{color:rgba(255,255,255,.64);font-size:14px;line-height:1.75;}

/* FAQ */
.cat-faq{background:var(--light-bg);}
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:16px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:12px;
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-left:3px solid var(--neon-green);box-shadow:var(--shadow-md);}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:700;color:var(--text-dark);cursor:pointer;user-select:none;
}
.faq-question:hover{color:var(--dark-green);}
.faq-icon{
  width:30px;height:30px;border-radius:50%;background:var(--light-bg);
  display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--dark-green);
  flex-shrink:0;transition:all .3s ease;
}
.faq-item.open .faq-icon{background:var(--neon-green);transform:rotate(135deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-answer-inner{padding:0 24px 22px;color:var(--text-secondary);font-size:14px;line-height:1.85;}

/* CTA */
.cat-cta{background:var(--light-bg);padding-top:0;}
.cat-cta-inner{
  position:relative;text-align:center;
  background:linear-gradient(135deg,var(--dark-green) 0%,#144235 100%);
  border:1px solid rgba(212,162,51,.25);
  border-radius:24px;padding:72px 40px 64px;overflow:hidden;color:#fff;
}
.cat-cta-inner::before{
  content:'';position:absolute;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,214,141,.22) 0%,transparent 70%);
  top:-90px;right:-70px;pointer-events:none;
}
.cat-cta-inner::after{
  content:'';position:absolute;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(212,162,51,.16) 0%,transparent 70%);
  bottom:-110px;left:-50px;pointer-events:none;
}
.cat-cta-inner h2{font-size:36px;font-weight:900;line-height:1.25;position:relative;z-index:1;}
.cat-cta-inner p{font-size:15px;color:rgba(255,255,255,.72);margin-top:14px;position:relative;z-index:1;}
.cta-actions{display:flex;gap:16px;justify-content:center;margin-top:36px;position:relative;z-index:2;flex-wrap:wrap;}
.cta-trust{display:flex;justify-content:center;gap:28px;margin-top:34px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-trust span{color:rgba(255,255,255,.68);font-size:13px;display:inline-flex;align-items:center;gap:6px;}
.cta-trust i{color:var(--neon-green);}

/* 注意事项 */
.cat-notes{background:var(--light-bg);padding-top:0;}
.notes-card{
  background:#fff;border:1px dashed #CFD9D2;border-radius:var(--radius);
  padding:34px 40px;font-size:13px;color:var(--text-secondary);line-height:1.85;
}
.notes-card h3{font-size:17px;font-weight:800;color:var(--text-dark);margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.notes-card h3 i{color:var(--amber);}
.notes-card ul{list-style:disc;padding-left:20px;}
.notes-card li{margin-bottom:8px;}

/* 页脚 */
.site-footer{background:var(--dark-green);border-top:1px solid rgba(45,214,141,.3);padding:64px 0 28px;color:rgba(255,255,255,.72);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--border-dark);}
.footer-brand{max-width:320px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.58);}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.03em;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.65);
  display:inline-flex;align-items:center;gap:7px;transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--neon-green);transform:translateX(3px);}
.footer-col a i{font-size:12px;color:var(--neon-green);}
.footer-contact li{display:flex;gap:10px;align-items:center;font-size:14px;color:rgba(255,255,255,.58);}
.footer-contact i{color:var(--neon-green);font-size:15px;width:20px;text-align:center;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-size:13px;color:rgba(255,255,255,.45);}
.footer-bottom a{color:rgba(255,255,255,.45);margin-left:20px;transition:color .2s ease;}
.footer-bottom a:hover{color:#fff;}
.legal{display:flex;align-items:center;}

/* 响应式 */
@media (max-width:1200px){
  .header-inner{height:56px;gap:12px;}
  .main-nav{
    display:none;
    position:fixed;top:56px;left:0;right:0;
    background:rgba(11,43,31,.98);
    flex-direction:column;align-items:stretch;
    padding:14px 20px 22px;
    border-bottom:1px solid rgba(45,214,141,.35);
    box-shadow:0 16px 40px rgba(0,0,0,.3);
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:14px 10px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:0;}
  .nav-link:last-child{border-bottom:none;}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--neon-green);}
  .menu-toggle{display:flex;}
  .feature-cat3-grid{grid-template-columns:1fr 1fr;}
  .feature-card-large{grid-column:1 / -1;grid-row:auto;}
  .feature-card-small-a{grid-column:1;grid-row:auto;}
  .feature-card-small-b{grid-column:2;grid-row:auto;}
  .process-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .cat-intro-grid{grid-template-columns:1fr;gap:32px;}
  .cat-intro-media img{height:280px;}
  .cat-cta-inner{padding:52px 24px 48px;}
  .cat-cta-inner h2{font-size:30px;}
  .process-grid{gap:16px;}
  .process-item{padding:24px 20px;}
  .process-num{font-size:60px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .page-hero-cat{min-height:auto;}
  .page-hero-inner{padding:36px 0;}
  .cat-hero-copy h1{font-size:34px;}
  .cat-hero-copy p{font-size:15px;}
  .hero-line{margin-top:14px;}
  .cat-intro-media{transform:none;}
  .cat-intro-media img{height:200px;}
  .section-head h2{font-size:26px;}
  .cat-intro-content h2{font-size:26px;}
  .feature-cat3-grid{grid-template-columns:1fr;}
  .feature-card-large{grid-column:auto;grid-row:auto;}
  .feature-card-small-a{grid-column:auto;grid-row:auto;}
  .feature-card-small-b{grid-column:auto;grid-row:auto;}
  .feature-card-large .feature-card-media{height:180px;}
  .feature-card-small .feature-card-media{height:170px;}
  .process-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .process-item{padding:20px 16px;}
  .process-num{font-size:48px;}
  .process-item h3{font-size:17px;}
  .process-item p{font-size:13px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:12px;align-items:flex-start;}
  .legal{margin-left:0;}
  .notes-card{padding:24px;}
}
@media (max-width:480px){
  .header-actions .btn-sm{padding:0 14px;font-size:12px;}
  .page-hero-cat{min-height:auto;}
  .cat-hero-copy h1{font-size:30px;}
  .section{padding:48px 0;}
  .cta-actions .btn{width:100%;}
  .cta-trust{gap:16px;}
  .stat-row{gap:16px;}
  .process-grid{grid-template-columns:1fr;}
  .faq-question{padding:16px 18px;font-size:15px;}
  .faq-answer-inner{padding:0 18px 18px;font-size:13px;}
}