/* roulang page: index */
:root {
  --primary: #00E5A0;
  --secondary: #7C3AED;
  --accent: #FFB800;
  --bg: #0B0F19;
  --card: #151D2E;
  --card-2: #1A2235;
  --text: #F1F5F9;
  --text-sub: #94A3B8;
  --text-weak: #64748B;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(0,229,160,0.12);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","HarmonyOS Sans SC",system-ui,sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) {
  .container { padding: 0 16px; }
}
.bg-glow { position: relative; }
.bg-glow::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0,229,160,0.18), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.bg-grid {
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.section-pad { padding: 70px 0; }
@media (max-width: 768px) {
  .section-pad { padding: 48px 0; }
}
.gradient-text {
  background: linear-gradient(135deg, #00E5A0 0%, #7C3AED 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-btn {
  background: linear-gradient(90deg, #00E5A0, #7C3AED);
  color: #0B0F19;
  font-weight: 700;
  transition: all 0.3s ease;
}
.gradient-btn:hover {
  filter: brightness(1.15);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,229,160,0.3);
}
.gradient-btn:active { transform: scale(0.97); }
.outline-btn {
  background: transparent;
  border: 1px solid rgba(0,229,160,0.4);
  color: #00E5A0;
  font-weight: 600;
  transition: all 0.3s ease;
}
.outline-btn:hover {
  border-color: #00E5A0;
  color: #ffffff;
  box-shadow: 0 0 20px rgba(0,229,160,0.15);
}
.card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
}
.card:hover {
  border-color: rgba(0,229,160,0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: #94A3B8;
  transition: all 0.25s;
}
.chip:hover { color: #fff; background: rgba(255,255,255,0.06); }
.chip-active {
  background: linear-gradient(90deg, #00E5A0, #7C3AED);
  color: #0B0F19;
  font-weight: 600;
}
.chip-active i { color: #0B0F19; }
.data-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 20px;
  background: linear-gradient(90deg, #00E5A0, #7C3AED);
  padding: 1px;
}
.data-badge-inner {
  background: #0B0F19;
  border-radius: 19px;
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.data-badge .num {
  font-family: "DIN Alternate", "Bahnschrift", "Roboto Mono", monospace;
  font-size: 22px;
  font-weight: 700;
  color: #00E5A0;
}
.data-badge .label {
  font-size: 12px;
  color: #94A3B8;
}
.faq-item {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}
.faq-item:hover { border-color: rgba(0,229,160,0.25); }
.faq-item.active { border-color: rgba(0,229,160,0.4); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
}
.faq-question .icon {
  transition: transform 0.3s;
  color: #00E5A0;
  font-size: 18px;
  flex-shrink: 0;
}
.faq-item.active .faq-question .icon { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--text-sub);
  border-left: 2px solid #00E5A0;
  margin-left: 20px;
  margin-right: 20px;
  padding-left: 16px;
  line-height: 1.8;
}
.faq-item.active .faq-answer { display: block; }
.img-cover-wrap { overflow: hidden; border-radius: var(--radius-md); }
.img-cover-wrap img { transition: transform 0.5s ease; width: 100%; height: 100%; object-fit: cover; }
.img-cover-wrap:hover img { transform: scale(1.06); }
.vertical-card {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  padding: 2px;
  background: linear-gradient(180deg, rgba(0,229,160,0.6), rgba(124,58,237,0.6));
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.vertical-card-inner {
  border-radius: 30px;
  overflow: hidden;
  background: #0B0F19;
  position: relative;
  height: 100%;
}
.scroll-x {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(0,229,160,0.3) transparent;
}
.scroll-x::-webkit-scrollbar { height: 6px; }
.scroll-x::-webkit-scrollbar-track { background: transparent; }
.scroll-x::-webkit-scrollbar-thumb { background: rgba(0,229,160,0.3); border-radius: 8px; }
.scroll-x > * { scroll-snap-align: start; flex-shrink: 0; }
.hide-scrollbar::-webkit-scrollbar { display: none; }
.hide-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }
.section-title {
  font-size: 28px;
  font-weight: 700;
  position: relative;
  padding-left: 18px;
  margin-bottom: 32px;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  border-radius: 4px;
  background: linear-gradient(180deg, #00E5A0, #7C3AED);
}
@media (max-width: 768px) {
  .section-title { font-size: 24px; }
}
.nav-container { backdrop-filter: blur(12px); }
.mobile-menu { display: none; }
.mobile-menu.open { display: block; }
.hamburger:hover { color: #00E5A0; }
.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text-sub);
  font-size: 14px;
  border: 1px solid rgba(255,255,255,0.06);
  transition: all 0.25s;
}
.pagination-btn:hover { border-color: rgba(0,229,160,0.4); color: #00E5A0; }
.pagination-btn.active { background: linear-gradient(90deg, #00E5A0, #7C3AED); color: #0B0F19; font-weight: 600; border: none; }
.tag-cloud {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(21,29,46,0.8);
  border: 1px solid rgba(255,255,255,0.06);
  font-size: 13px;
  color: #94A3B8;
  transition: all 0.25s;
}
.tag-cloud:hover { border-color: #00E5A0; color: #00E5A0; transform: translateY(-2px); }
.news-thumb { width: 112px; height: 80px; border-radius: 14px; overflow: hidden; flex-shrink: 0; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cms-list-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.04);
  background: rgba(21,29,46,0.5);
  transition: all 0.3s;
}
.cms-list-item:hover { background: rgba(21,29,46,0.9); border-color: rgba(0,229,160,0.2); transform: translateX(4px); }
.empty-state { text-align: center; padding: 40px 20px; }
.empty-icon { font-size: 48px; color: rgba(0,229,160,0.4); margin-bottom: 12px; }
.cta-card {
  background: linear-gradient(120deg, #00E5A0 0%, #7C3AED 100%);
  border-radius: 32px;
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,0.18), transparent 60%);
  top: -80px;
  right: -40px;
  border-radius: 50%;
}
@media (max-width: 768px) {
  .cta-card { padding: 36px 24px; }
}
.form-input {
  background: #0B0F19;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  height: 48px;
  padding: 0 16px;
  font-size: 14px;
  color: #fff;
  transition: all 0.3s;
  width: 100%;
}
.form-input::placeholder { color: #64748B; }
.form-input:focus { border-color: #00E5A0; outline: none; box-shadow: 0 0 0 3px rgba(0,229,160,0.15); }
.sidebar-card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.footer-link { color: #94A3B8; transition: color 0.25s; font-size: 14px; }
.footer-link:hover { color: #00E5A0; }
.meta-text { font-size: 12px; color: var(--text-weak); }
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(11,15,25,0.2);
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 14px;
  backdrop-filter: blur(4px);
}
@media (max-width: 640px) {
  .trust-badge { padding: 8px 14px; font-size: 13px; }
}

/* roulang page: category1 */
:root {
  --c-brand: #00E5A0;
  --c-neon: #7C3AED;
  --c-energy: #FFB800;
  --c-bg: #0B0F19;
  --c-card: #151D2E;
  --c-float: #1A2235;
  --c-text: #F1F5F9;
  --c-sub: #94A3B8;
  --c-weak: #64748B;
  --border-brand: rgba(0, 229, 160, 0.15);
  --border-sub: rgba(148, 163, 184, 0.1);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 40px rgba(0, 229, 160, 0.12);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, sans-serif;
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

@media (min-width: 640px) {
  .container { padding-left: 24px; padding-right: 24px; }
}

@media (min-width: 1024px) {
  .container { padding-left: 32px; padding-right: 32px; }
}

/* 文本 */
.gradient-text {
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* 导航 */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 12px;
  font-size: 14px;
  color: #94A3B8;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.chip:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.chip-active {
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  color: #0B0F19;
  font-weight: 600;
}

.chip-active:hover {
  color: #0B0F19;
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
}

/* 按钮 */
.gradient-btn {
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  color: #0B0F19;
  font-weight: 700;
  height: 48px;
  padding: 0 28px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.gradient-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 229, 160, 0.3);
}

.gradient-btn:active {
  transform: scale(0.95);
}

.outline-btn {
  background: transparent;
  border: 1px solid rgba(0, 229, 160, 0.4);
  color: #00E5A0;
  height: 48px;
  padding: 0 28px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.outline-btn:hover {
  border-color: #00E5A0;
  color: #fff;
  background: rgba(0, 229, 160, 0.05);
}

.outline-btn:active {
  transform: scale(0.95);
}

/* 移动菜单 */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.mobile-menu.open {
  max-height: 500px;
}

/* Hero */
.hero-section {
  position: relative;
  overflow: hidden;
  background-color: var(--c-bg);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.2), transparent 65%);
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, rgba(0, 229, 160, 0.08), transparent);
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0B0F19 30%, transparent);
}

/* Hero竖屏卡 */
.vertical-card {
  position: relative;
  border-radius: 32px;
  padding: 2px;
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  box-shadow: 0 20px 60px rgba(0, 229, 160, 0.15);
}

.vertical-card-inner {
  border-radius: 30px;
  overflow: hidden;
  background: #0B0F19;
  position: relative;
  height: 560px;
}

@media (max-width: 1023px) {
  .vertical-card-inner {
    height: 480px;
  }
}

.vertical-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6);
}

.vertical-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px 24px;
  background: linear-gradient(to top, #0B0F19 10%, transparent);
}

/* 数据徽章 */
.data-badge {
  padding: 2px;
  border-radius: 16px;
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  display: inline-block;
}

.data-badge-inner {
  background: #0B0F19;
  border-radius: 14px;
  padding: 12px 20px;
  text-align: center;
}

.data-badge-num {
  font-family: "DIN Alternate", "Bahnschrift", "Roboto Mono", monospace;
  font-size: 28px;
  font-weight: 800;
  color: #00E5A0;
  line-height: 1.2;
}

@media (max-width: 640px) {
  .data-badge-num {
    font-size: 22px;
  }
}

/* 卡片 */
.card {
  background: var(--c-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: rgba(0, 229, 160, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.feature-card {
  background: var(--c-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 24px;
  padding: 28px 24px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(0, 229, 160, 0.25);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  opacity: 1;
}

/* 内容卡片 */
.content-card {
  background: var(--c-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.content-card:hover {
  border-color: rgba(0, 229, 160, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.content-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.content-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.content-card:hover .content-card-img img {
  transform: scale(1.05);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(0, 229, 160, 0.1);
  color: #00E5A0;
  border: 1px solid rgba(0, 229, 160, 0.2);
}

.tag-hot {
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  color: #0B0F19;
  border: none;
  font-weight: 700;
}

/* 章节标题 */
.section-title {
  font-size: 28px;
  font-weight: 800;
  position: relative;
  padding-left: 16px;
  line-height: 1.3;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, #00E5A0, #7C3AED);
}

@media (min-width: 768px) {
  .section-title {
    font-size: 32px;
  }
}

/* 横滚卡片条 */
.scroll-row {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
}

.scroll-row::-webkit-scrollbar {
  height: 4px;
}

.scroll-row::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
}

.scroll-row::-webkit-scrollbar-thumb {
  background: rgba(0, 229, 160, 0.3);
  border-radius: 4px;
}

.scroll-row > * {
  scroll-snap-align: start;
  flex-shrink: 0;
}

/* FAQ */
.faq-item {
  background: var(--c-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-q {
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  user-select: none;
}

.faq-icon {
  transition: transform 0.3s ease;
  color: #00E5A0;
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-a {
  display: none;
  padding: 0 20px 18px;
  margin-left: 20px;
  padding-left: 20px;
  border-left: 2px solid #00E5A0;
  color: var(--c-sub);
  font-size: 14px;
  line-height: 1.8;
}

.faq-item.open .faq-a {
  display: block;
}

/* CTA */
.cta-card {
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  border-radius: 32px;
  padding: 48px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.cta-card .cta-dark-btn {
  background: #0B0F19;
  color: #00E5A0;
  font-weight: 700;
  padding: 14px 40px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cta-card .cta-dark-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11, 15, 25, 0.3);
}

/* 步骤 */
.step {
  display: flex;
  gap: 16px;
  position: relative;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: -12px;
  width: 2px;
  background: linear-gradient(180deg, rgba(0, 229, 160, 0.4), transparent);
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #00E5A0, #7C3AED);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #0B0F19;
  flex-shrink: 0;
  font-size: 16px;
}

/* 页脚 */
.footer-link {
  color: #94A3B8;
  font-size: 14px;
  transition: all 0.25s ease;
}

.footer-link:hover {
  color: #00E5A0;
}

/* 表单 */
.form-input {
  background: #0B0F19;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  height: 48px;
  padding: 0 16px;
  color: #fff;
  font-size: 14px;
  width: 100%;
  transition: all 0.3s ease;
}

.form-input:focus {
  border-color: #00E5A0;
  box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.2);
  outline: none;
}

.form-input::placeholder {
  color: rgba(148, 163, 184, 0.5);
}

/* 响应式工具 */
@media (max-width: 1023px) {
  .desktop-nav { display: none; }
}

@media (min-width: 1024px) {
  .hamburger { display: none; }
}

/* 图片加载失败兜底 */
img {
  background: #151D2E;
}

img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: #151D2E;
}

/* 通用动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-up {
  animation: fadeInUp 0.6s ease both;
}

/* 网格线纹理 */
.grid-lines {
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 100% 60px;
}

/* roulang page: article */
:root {
  --brand: #00E5A0;
  --purple: #7C3AED;
  --orange: #FFB800;
  --bg: #0B0F19;
  --card: #151D2E;
  --surface: #1A2235;
  --text: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-weak: #64748B;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
.container {
  max-width: 80rem;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 640px) {
  .container { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (min-width: 1024px) {
  .container { padding-left: 2rem; padding-right: 2rem; }
}
.gradient-text {
  background: linear-gradient(90deg, var(--brand), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.gradient-btn {
  background: linear-gradient(90deg, var(--brand), var(--purple));
  color: #0B0F19;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  box-shadow: 0 4px 20px rgba(0,229,160,0.2);
}
.gradient-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,229,160,0.3);
}
.gradient-btn:active { transform: scale(0.96); }
.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 12px;
  transition: all .25s ease;
}
.chip:hover { color: #fff; background: rgba(255,255,255,0.05); }
.chip-active {
  background: linear-gradient(90deg, var(--brand), var(--purple));
  color: #0B0F19;
  font-weight: 600;
}
.chip-active:hover {
  color: #0B0F19;
  background: linear-gradient(90deg, var(--brand), var(--purple));
}
.mobile-menu { display: none; }
.mobile-menu.open { display: block; }
.breadcrumb {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.375rem;
  font-size: 0.875rem;
  color: var(--text-weak);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .current { color: #fff; }
.article-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center 40%;
  border-bottom: 1px solid rgba(0,229,160,0.15);
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,15,25,0.88), rgba(11,15,25,0.96));
}
.article-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(124,58,237,0.22), transparent 55%),
              radial-gradient(circle at 15% 90%, rgba(0,229,160,0.16), transparent 60%);
}
.article-hero .container { position: relative; z-index: 1; }
.post-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  background: rgba(0,229,160,0.12);
  color: var(--brand);
  border: 1px solid rgba(0,229,160,0.25);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.post-content {
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(241,245,249,0.92);
}
@media (min-width: 768px) {
  .post-content { font-size: 1.0625rem; }
}
.post-content h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 2.5rem 0 1.25rem;
  padding-left: 0.875rem;
  border-left: 4px solid var(--brand);
  background: linear-gradient(90deg, rgba(0,229,160,0.08), transparent);
  border-radius: 0 8px 8px 0;
  line-height: 1.4;
}
.post-content h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin: 2rem 0 0.875rem;
  color: #fff;
}
.post-content h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 1.5rem 0 0.625rem;
  color: #fff;
}
.post-content p { margin-bottom: 1.5rem; }
.post-content strong { color: #fff; font-weight: 700; }
.post-content a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.post-content a:hover { color: #fff; }
.post-content img {
  border-radius: 16px;
  margin: 1.75rem 0;
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
.post-content ul,
.post-content ol {
  margin: 0.875rem 0 1.5rem;
  padding-left: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}
.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }
.post-content li::marker { color: var(--brand); }
.post-content blockquote {
  border-left: 4px solid var(--brand);
  background: rgba(21,29,46,0.8);
  padding: 1rem 1.25rem;
  border-radius: 0 12px 12px 0;
  margin: 1.5rem 0;
  color: var(--text-secondary);
}
.post-content code {
  background: #0B0F19;
  color: var(--brand);
  border: 1px solid rgba(0,229,160,0.2);
  border-radius: 6px;
  padding: 0.125rem 0.5rem;
  font-family: "Roboto Mono", "DIN Alternate", monospace;
  font-size: 0.875em;
}
.post-content pre {
  background: #0B0F19;
  border: 1px solid rgba(0,229,160,0.15);
  border-radius: 16px;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.post-content pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: #E2E8F0;
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.875rem;
}
.post-content th,
.post-content td {
  border: 1px solid rgba(148,163,184,0.15);
  padding: 0.625rem 0.875rem;
  text-align: left;
}
.post-content th {
  background: rgba(0,229,160,0.08);
  color: #fff;
  font-weight: 600;
}
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin: 2.5rem 0 1.5rem;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.875rem;
  background: rgba(0,229,160,0.08);
  border: 1px solid rgba(0,229,160,0.18);
  color: var(--brand);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all .25s ease;
}
.tag:hover { background: rgba(0,229,160,0.15); border-color: var(--brand); }
.share-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(148,163,184,0.1);
}
.share-label { font-size: 0.875rem; color: var(--text-secondary); }
.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  background: var(--card);
  border: 1px solid rgba(148,163,184,0.15);
  color: var(--text-secondary);
  border-radius: 10px;
  font-size: 0.875rem;
  transition: all .25s ease;
}
.social-btn:hover {
  color: var(--brand);
  border-color: var(--brand);
  transform: translateY(-2px);
}
.not-found {
  text-align: center;
  padding: 4rem 1.5rem;
  background: var(--card);
  border: 1px solid rgba(148,163,184,0.1);
  border-radius: var(--radius-lg);
}
.not-found i {
  font-size: 3rem;
  color: var(--text-weak);
  display: block;
  margin-bottom: 1.25rem;
}
.article-body { padding: 3rem 0 2rem; }
.recommend-section { padding: 3.5rem 0; }
.faq-section { padding: 3.5rem 0; }
.cta-section { padding: 3.5rem 0 4rem; }
@media (min-width: 768px) {
  .article-body { padding: 4.5rem 0 3rem; }
  .recommend-section { padding: 4.5rem 0; }
  .faq-section { padding: 4.5rem 0; }
  .cta-section { padding: 4.5rem 0 5rem; }
}
.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}
.section-title-bar {
  width: 4px;
  height: 1.75rem;
  background: linear-gradient(180deg, var(--brand), var(--purple));
  border-radius: 999px;
}
.section-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin: 0;
}
@media (min-width: 768px) {
  .section-title { font-size: 1.875rem; }
}
.rec-card {
  display: block;
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .3s ease;
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
.rec-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,229,160,0.3);
  box-shadow: 0 12px 40px rgba(0,229,160,0.12);
}
.cover-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--surface);
}
.cover-wrap::after {
  content: "\f1c5";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: rgba(148,163,184,0.4);
}
.cover-img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.rec-card:hover .cover-img { transform: scale(1.05); }
.duration-badge {
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  z-index: 2;
  background: rgba(11,15,25,0.78);
  color: #fff;
  font-size: 0.75rem;
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  padding: 0.25rem 0.625rem;
  border-radius: 8px;
  backdrop-filter: blur(6px);
}
.hot-badge {
  position: absolute;
  left: 0.75rem;
  bottom: 0.75rem;
  z-index: 2;
  background: linear-gradient(90deg, rgba(0,229,160,0.9), rgba(124,58,237,0.9));
  color: #0B0F19;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.rec-card-body { padding: 1.25rem; }
.category-chip {
  display: inline-flex;
  padding: 0.1875rem 0.625rem;
  background: rgba(0,229,160,0.1);
  border: 1px solid rgba(0,229,160,0.2);
  color: var(--brand);
  font-size: 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.625rem;
}
.rec-card-body h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.rec-card-body p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.875rem;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--brand);
  font-size: 0.8125rem;
  font-weight: 600;
}
.card-link i { transition: transform .25s ease; }
.rec-card:hover .card-link i { transform: translateX(4px); }
.faq-item {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: border-color .3s ease;
}
.faq-item.open { border-color: rgba(0,229,160,0.3); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.125rem 1.25rem;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background .25s ease;
}
.faq-question:hover { background: rgba(255,255,255,0.03); }
.faq-icon {
  color: var(--brand);
  transition: transform .3s ease;
  font-size: 0.875rem;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  display: none;
  margin-left: 1.25rem;
  padding: 0 1.25rem 1.125rem;
  border-left: 2px solid var(--brand);
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.75;
}
.faq-answer p { margin: 0; }
.faq-item.open .faq-answer { display: block; animation: fadeIn .3s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.cta-card {
  background: linear-gradient(135deg, #00E5A0 0%, #7C3AED 100%);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  color: #0B0F19;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
  box-shadow: 0 16px 48px rgba(124,58,237,0.25);
}
@media (min-width: 768px) {
  .cta-card {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    padding: 3rem;
  }
}
.cta-inner h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.625rem;
  letter-spacing: -0.02em;
}
.cta-inner p {
  font-size: 0.9375rem;
  opacity: 0.85;
  max-width: 420px;
}
.dark-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #0B0F19;
  color: #fff;
  font-weight: 700;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  transition: all .3s ease;
}
.dark-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11,15,25,0.3);
}
.cta-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  justify-content: center;
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: rgba(11,15,25,0.12);
  color: #0B0F19;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.5rem 0.875rem;
  border-radius: 999px;
  border: 1px solid rgba(11,15,25,0.1);
}
.footer-link {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color .25s ease;
  display: inline-flex;
  align-items: center;
}
.footer-link:hover { color: var(--brand); }

/* roulang page: category2 */
:root {
            --primary: #00E5A0;
            --accent: #7C3AED;
            --warn: #FFB800;
            --bg: #0B0F19;
            --card: #151D2E;
            --card-2: #1A2235;
            --text: #F1F5F9;
            --text-2: #94A3B8;
            --text-3: #64748B;
            --border: rgba(0, 229, 160, 0.15);
            --border-2: rgba(148, 163, 184, 0.1);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 40px rgba(0, 229, 160, 0.12);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, sans-serif;
            min-height: 100vh;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        img {
            display: block;
            max-width: 100%;
            background: #1A2235;
        }

        button,
        input,
        textarea {
            font-family: inherit;
        }

        body .container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        .gradient-text {
            background: linear-gradient(135deg, #00E5A0 0%, #7C3AED 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .gradient-btn {
            background: linear-gradient(135deg, #00E5A0 0%, #7C3AED 100%);
            color: #0B0F19;
            font-weight: 700;
            transition: all .3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            border: none;
            cursor: pointer;
        }

        .gradient-btn:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 160, .3);
        }

        .gradient-btn:active {
            transform: scale(.96);
        }

        .outline-btn {
            border: 1px solid rgba(0, 229, 160, .4);
            color: #00E5A0;
            transition: all .3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            cursor: pointer;
        }

        .outline-btn:hover {
            border-color: #00E5A0;
            color: #fff;
            background: rgba(0, 229, 160, .06);
            box-shadow: 0 8px 24px rgba(0, 229, 160, .15);
        }

        .outline-btn:active {
            transform: scale(.96);
        }

        .chip {
            display: inline-flex;
            align-items: center;
            padding: .5rem .9rem;
            border-radius: 12px;
            font-size: .875rem;
            color: #94a3b8;
            transition: all .25s;
            cursor: pointer;
            white-space: nowrap;
        }

        .chip:hover {
            color: #fff;
            background: rgba(255, 255, 255, .05);
        }

        .chip-active {
            background: linear-gradient(135deg, #00E5A0 0%, #7C3AED 100%);
            color: #0B0F19 !important;
            font-weight: 600;
        }

        .site-card {
            background: var(--card);
            border: 1px solid var(--border-2);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all .3s;
            position: relative;
            overflow: hidden;
        }

        .site-card::before {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, rgba(0, 229, 160, .5), rgba(124, 58, 237, .5));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            opacity: 0;
            transition: opacity .3s;
            pointer-events: none;
        }

        .site-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 229, 160, .3);
        }

        .site-card:hover::before {
            opacity: 1;
        }

        .site-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }

        .hero-bg {
            background:
                radial-gradient(circle at 20% 25%, rgba(0, 229, 160, .18), transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(124, 58, 237, .18), transparent 45%);
        }

        .grid-lines {
            background-image:
                linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
            background-size: 44px 44px;
        }

        .footer-link {
            color: #94a3b8;
            transition: color .25s;
        }

        .footer-link:hover {
            color: #00E5A0;
        }

        .mobile-menu {
            display: none;
        }

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

        .data-num {
            font-family: "DIN Alternate", "Bahnschrift", "Roboto Mono", monospace;
            letter-spacing: .02em;
        }

        .vertical-card {
            border-radius: 32px;
            overflow: hidden;
            position: relative;
            padding: 2px;
            background: linear-gradient(160deg, #00E5A0, #7C3AED);
            box-shadow: 0 18px 48px rgba(0, 229, 160, .15);
        }

        .vertical-card-inner {
            border-radius: 30px;
            overflow: hidden;
            background: #0B0F19;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .scrollbar-hide::-webkit-scrollbar {
            display: none;
        }

        .scrollbar-hide {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .faq-card {
            background: #151D2E;
            border: 1px solid rgba(148, 163, 184, 0.1);
            border-radius: 16px;
            transition: border .3s, box-shadow .3s;
            overflow: hidden;
        }

        .faq-card:hover {
            border-color: rgba(0, 229, 160, .3);
        }

        .faq-card.active {
            border-color: rgba(0, 229, 160, .4);
            box-shadow: 0 8px 24px rgba(0, 229, 160, .08);
        }

        .faq-answer {
            display: none;
        }

        .faq-card.active .faq-answer {
            display: block;
        }

        .icon-plus {
            transition: transform .35s;
        }

        .faq-card.active .icon-plus {
            transform: rotate(45deg);
        }

        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity .7s ease, transform .7s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .hero-fade {
            animation: heroFade .8s ease forwards;
            opacity: 0;
            transform: translateY(20px);
        }

        @keyframes heroFade {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .delay-100 { animation-delay: .1s; }
        .delay-200 { animation-delay: .2s; }
        .delay-300 { animation-delay: .3s; }

        .pulse-glow {
            animation: pulseGlow 3s ease-in-out infinite;
        }

        @keyframes pulseGlow {
            0%, 100% { box-shadow: 0 0 0 rgba(0, 229, 160, .2); }
            50% { box-shadow: 0 0 28px rgba(0, 229, 160, .25); }
        }

/* roulang page: category3 */
:root {
            --brand: #00E5A0;
            --brand-purple: #7C3AED;
            --accent: #FFB800;
            --bg-deep: #0B0F19;
            --bg-card: #151D2E;
            --bg-float: #1A2235;
            --text-main: #F1F5F9;
            --text-sub: #94A3B8;
            --text-weak: #64748B;
            --border-brand: rgba(0, 229, 160, 0.15);
            --border-soft: rgba(148, 163, 184, 0.1);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 40px rgba(0, 229, 160, 0.12);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.6;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all .2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 渐变文字 */
        .gradient-text {
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-purple) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        /* 主按钮 */
        .gradient-btn {
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-purple) 100%);
            color: var(--bg-deep);
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all .3s ease;
            box-shadow: 0 4px 14px rgba(0, 229, 160, 0.2);
        }
        .gradient-btn:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 160, 0.3);
        }
        .gradient-btn:active {
            transform: scale(.96);
        }

        /* 次级按钮 */
        .outline-btn {
            background: transparent;
            border: 1px solid rgba(0, 229, 160, 0.4);
            color: var(--brand);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all .3s ease;
        }
        .outline-btn:hover {
            border-color: var(--brand);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(0, 229, 160, 0.15);
        }
        .outline-btn:active {
            transform: scale(.96);
        }

        /* 导航 chip */
        .chip {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            border-radius: 12px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-sub);
            transition: all .2s ease;
            white-space: nowrap;
        }
        .chip:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .chip-active {
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-purple) 100%);
            color: var(--bg-deep) !important;
            font-weight: 600;
        }
        .chip-active:hover {
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-purple) 100%);
            filter: brightness(1.1);
        }

        /* 移动菜单 */
        .mobile-menu {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .mobile-menu.open {
            max-height: 480px;
        }

        /* 板块标题（左侧渐变竖条） */
        .section-title {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .section-title::before {
            content: '';
            width: 4px;
            height: 28px;
            border-radius: 4px;
            background: linear-gradient(180deg, var(--brand), var(--brand-purple));
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.35rem;
            }
            .section-title::before {
                height: 22px;
            }
        }

        /* 数据徽章数字 */
        .stat-num {
            font-family: DIN Alternate, "Bahnschrift", "Roboto Mono", monospace;
            font-weight: 700;
            color: var(--brand);
            font-size: 1.75rem;
            line-height: 1;
        }
        @media (max-width: 768px) {
            .stat-num {
                font-size: 1.35rem;
            }
        }

        /* 卡片 hover */
        .card-hover {
            transition: all .3s ease;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            border-color: var(--border-brand) !important;
            box-shadow: var(--shadow-hover);
        }

        /* 图片缩放 */
        .img-zoom {
            overflow: hidden;
        }
        .img-zoom img {
            transition: transform .5s ease;
        }
        .img-zoom:hover img {
            transform: scale(1.05);
        }

        /* 标签 */
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(0, 229, 160, 0.12);
            border: 1px solid rgba(0, 229, 160, 0.2);
            color: var(--brand);
        }
        .badge-heat {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: linear-gradient(135deg, rgba(0, 229, 160, 0.9), rgba(124, 58, 237, 0.9));
            color: var(--bg-deep);
        }

        /* Hero 背景网格 */
        .hero-grid-bg {
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
        }
        .hero-glow::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.25), transparent 60%);
            pointer-events: none;
            border-radius: 50%;
            z-index: 0;
        }
        .hero-glow::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 10%;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.18), transparent 60%);
            pointer-events: none;
            border-radius: 50%;
            z-index: 0;
        }

        /* 竖屏卡 */
        .mobile-frame {
            padding: 2px;
            border-radius: 32px;
            background: linear-gradient(160deg, rgba(0, 229, 160, 0.6), rgba(124, 58, 237, 0.6));
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }
        .mobile-frame-inner {
            border-radius: 30px;
            overflow: hidden;
            background: var(--bg-deep);
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color .3s;
        }
        .faq-item:hover {
            border-color: rgba(0, 229, 160, 0.2);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .faq-q .icon {
            transition: transform .3s ease;
            color: var(--brand);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item.open .faq-q .icon {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 1.75;
        }
        .faq-a-inner {
            padding: 0 1.25rem 1rem;
            border-left: 2px solid var(--brand);
            margin: 0 1.25rem 0.5rem;
            padding-left: 1rem;
        }
        .faq-item.open .faq-a {
            max-height: 220px;
        }

        /* 页脚链接 */
        .footer-link {
            transition: all .2s ease;
        }
        .footer-link:hover {
            color: var(--brand);
            padding-left: 2px;
        }

        /* 表单输入 */
        .input-dark {
            background: var(--bg-deep);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            height: 46px;
            padding: 0 1rem;
            font-size: 0.875rem;
            width: 100%;
            color: #fff;
            transition: all .2s ease;
        }
        .input-dark::placeholder {
            color: var(--text-weak);
        }
        .input-dark:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.15);
        }

        /* 分页器（预留） */
        .pagination a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-sub);
            font-size: 0.875rem;
            font-weight: 500;
            transition: all .2s;
        }
        .pagination a:hover {
            border-color: var(--border-brand);
            color: var(--brand);
        }
        .pagination .active-page {
            background: linear-gradient(135deg, var(--brand), var(--brand-purple));
            color: var(--bg-deep) !important;
            font-weight: 700;
            border: none;
        }

        /* 移动端适配 */
        @media (max-width: 640px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions a {
                width: 100%;
            }
        }