/* ============================================================
   91漫画 — 全品类漫画聚合门户
   主样式表 style.css
   设计语言：深色基底 + 霓虹渐变强调 + 卡片式布局 + 微动效
   ============================================================ */

/* ---------- 1. CSS Variables & Reset ---------- */
:root {
  --color-bg: #0d0f1a;
  --color-bg-alt: #151830;
  --color-bg-card: #1c1f38;
  --color-surface: #232748;
  --color-text: #eef0ff;
  --color-text-muted: #9aa1c7;
  --color-text-dim: #6c7298;
  --color-primary: #7c5cff;
  --color-primary-light: #a98dff;
  --color-accent: #ff5c8a;
  --color-accent-light: #ff9ab8;
  --color-sun: #ffc94d;
  --color-mint: #3dd6b5;
  --gradient-main: linear-gradient(135deg, #7c5cff 0%, #ff5c8a 100%);
  --gradient-hero: linear-gradient(160deg, #1a1440 0%, #0d0f1a 45%, #241238 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(124, 92, 255, 0.35);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --max-width: 1200px;
  --transition: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  overflow-x: hidden;
  font-size: 16px;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul,
ol {
  list-style: none;
}

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

section {
  padding: 96px 0;
  position: relative;
}

.container {
  width: min(var(--max-width), 92%);
  margin-inline: auto;
}

/* ---------- 2. Typography ---------- */
h1,
h2,
h3,
h4 {
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary-light);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  max-width: 720px;
  margin-bottom: 40px;
}

.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 3. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.5px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  will-change: transform;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 6px 20px rgba(124, 92, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(124, 92, 255, 0.5);
}

.btn-outline {
  border: 2px solid rgba(255, 255, 255, 0.25);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.btn-ghost {
  color: var(--color-text-muted);
  padding: 14px 20px;
}

.btn-ghost:hover {
  color: var(--color-primary-light);
}

.btn-lg {
  padding: 17px 42px;
  font-size: 17px;
}

/* ---------- 4. Navigation Bar ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(13, 15, 26, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(13, 15, 26, 0.94);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.4);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 1px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient-main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(124, 92, 255, 0.45);
}

.logo b {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 15px;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(124, 92, 255, 0.16);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  border-radius: 3px;
  background: var(--gradient-main);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 5. Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(124, 92, 255, 0.22), transparent 42%),
    radial-gradient(circle at 80% 70%, rgba(255, 92, 138, 0.18), transparent 45%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(124, 92, 255, 0.12);
  border-radius: 50%;
  top: -160px;
  right: -140px;
  box-shadow: inset 0 0 80px rgba(124, 92, 255, 0.06);
  animation: hero-orbit 14s linear infinite;
}

@keyframes hero-orbit {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124, 92, 255, 0.14);
  border: 1px solid rgba(124, 92, 255, 0.35);
  color: var(--color-primary-light);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  animation: fade-up 0.8s ease both;
}

.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 900;
  margin-bottom: 22px;
  animation: fade-up 0.8s 0.1s ease both;
}

.hero-desc {
  color: var(--color-text-muted);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  max-width: 560px;
  margin-bottom: 34px;
  animation: fade-up 0.8s 0.2s ease both;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
  animation: fade-up 0.8s 0.3s ease both;
}

.hero-stats {
  display: flex;
  gap: 42px;
  flex-wrap: wrap;
  animation: fade-up 0.8s 0.4s ease both;
}

.hero-stat b {
  display: block;
  font-size: 30px;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-stat span {
  color: var(--color-text-dim);
  font-size: 13px;
}

.hero-visual {
  position: relative;
  animation: fade-up 0.9s 0.35s ease both;
}

.hero-card-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-md);
  transform: rotate(2deg);
  transition: transform 0.5s ease;
}

.hero-card-main:hover {
  transform: rotate(0deg) scale(1.02);
}

.hero-card-main img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  width: 100%;
}

.hero-card-float {
  position: absolute;
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(6px);
}

.hero-card-float .emoji {
  font-size: 30px;
}

.hero-card-float b {
  font-size: 14px;
  display: block;
}

.hero-card-float span {
  font-size: 12px;
  color: var(--color-text-muted);
}

.float-top {
  top: 18px;
  left: -30px;
  animation: float-y 4s ease-in-out infinite;
}

.float-bottom {
  bottom: 24px;
  right: -24px;
  animation: float-y 4s 1.2s ease-in-out infinite;
}

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-dim);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 2;
}

.scroll-hint::after {
  content: "";
  width: 2px;
  height: 36px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scroll-line 1.8s ease-in-out infinite;
}

@keyframes scroll-line {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- 6. Features ---------- */
.features {
  background: var(--color-bg);
}

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

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(124, 92, 255, 0.4);
  box-shadow: var(--shadow-glow);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: rgba(124, 92, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* ---------- 7. Services ---------- */
.services {
  background: var(--color-bg-alt);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.07);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
}

.service-thumb {
  position: relative;
  overflow: hidden;
}

.service-thumb img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  width: 100%;
  transition: transform 0.6s ease;
}

.service-card:hover .service-thumb img {
  transform: scale(1.08);
}

.service-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(13, 15, 26, 0.85);
  color: var(--color-sun);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.service-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.service-body h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.service-body p {
  color: var(--color-text-muted);
  font-size: 14px;
  flex: 1;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  color: var(--color-primary-light);
  font-weight: 700;
  font-size: 14px;
}

.service-link:hover {
  color: var(--color-accent-light);
}

/* ---------- 8. Products / 漫画卡片 ---------- */
.products {
  background: var(--color-bg);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.comic-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  background: var(--color-bg-card);
}

.comic-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-glow);
}

.comic-cover {
  position: relative;
  overflow: hidden;
}

.comic-cover img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  width: 100%;
  transition: transform 0.5s ease;
}

.comic-card:hover .comic-cover img {
  transform: scale(1.1);
}

.comic-rank {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(13, 15, 26, 0.85);
  color: var(--color-sun);
  font-weight: 900;
  font-size: 13px;
  padding: 3px 10px;
  border-radius: 8px;
}

.comic-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--gradient-main);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 8px;
}

.comic-info {
  padding: 14px;
}

.comic-info h3 {
  font-size: 15px;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.comic-meta {
  display: flex;
  justify-content: space-between;
  color: var(--color-text-dim);
  font-size: 12px;
}

.comic-tag {
  color: var(--color-mint);
  font-size: 12px;
}

/* ---------- 9. News / 新闻区 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.news-thumb img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  width: 100%;
  transition: transform 0.5s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.06);
}

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

.news-meta {
  display: flex;
  gap: 14px;
  color: var(--color-text-dim);
  font-size: 12px;
  margin-bottom: 10px;
}

.news-body h3 {
  font-size: 17px;
  margin-bottom: 10px;
  line-height: 1.45;
}

.news-body p {
  color: var(--color-text-muted);
  font-size: 14px;
  flex: 1;
}

.news-more {
  margin-top: 16px;
  color: var(--color-primary-light);
  font-weight: 700;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.news-more:hover {
  color: var(--color-accent-light);
}

/* ---------- 10. CTA ---------- */
.cta {
  background: linear-gradient(135deg, #2a1a5e 0%, #4a1a4d 100%);
  overflow: hidden;
  text-align: center;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 70% 20%, rgba(255, 92, 138, 0.25), transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(124, 92, 255, 0.3), transparent 50%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin-inline: auto;
}

.cta h2 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.cta p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- 11. FAQ ---------- */
.faq-list {
  max-width: 820px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item.active {
  border-color: rgba(124, 92, 255, 0.5);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  text-align: left;
}

.faq-question .faq-arrow {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(124, 92, 255, 0.15);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, background 0.3s ease;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  background: var(--gradient-main);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 22px;
}

/* ---------- 12. Contact / 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-top: 28px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-info-item .icon {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(124, 92, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.contact-info-item h4 {
  font-size: 16px;
  margin-bottom: 2px;
}

.contact-info-item p {
  color: var(--color-text-muted);
  font-size: 14px;
}

.contact-form {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: grid;
  gap: 18px;
}

.form-group {
  display: grid;
  gap: 8px;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form-control {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--color-text);
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.2);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

/* ---------- 13. Page Hero (内页) ---------- */
.page-hero {
  padding: 160px 0 80px;
  background: linear-gradient(160deg, #1a1440 0%, #0d0f1a 70%);
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  margin-bottom: 14px;
}

.page-hero p {
  color: var(--color-text-muted);
  max-width: 640px;
  margin-inline: auto;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.breadcrumb {
  display: inline-flex;
  gap: 8px;
  color: var(--color-text-dim);
  font-size: 13px;
  margin-bottom: 18px;
}

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

/* ---------- 14. About / 关于页 ---------- */
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-story .text p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.about-visual img {
  border-radius: var(--radius-lg);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  box-shadow: var(--shadow-md);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
  transition: transform 0.35s ease;
}

.value-card:hover {
  transform: translateY(-8px);
}

.value-card .emoji {
  font-size: 40px;
  margin-bottom: 16px;
}

.value-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.value-card p {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* ---------- 15. Timeline ---------- */
.timeline {
  position: relative;
  max-width: 720px;
  margin-inline: auto;
  padding-left: 40px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
}

.timeline-item {
  position: relative;
  padding-bottom: 34px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-primary);
}

.timeline-item b {
  display: block;
  color: var(--color-primary-light);
  font-size: 13px;
  margin-bottom: 4px;
}

.timeline-item h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.timeline-item p {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* ---------- 16. News Detail / 新闻详情 ---------- */
.article {
  max-width: 820px;
  margin-inline: auto;
}

.article-header {
  text-align: center;
  margin-bottom: 40px;
}

.article-header h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  color: var(--color-text-dim);
  font-size: 13px;
  flex-wrap: wrap;
}

.article-cover {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 36px;
  box-shadow: var(--shadow-md);
}

.article-cover img {
  aspect-ratio: 21 / 9;
  object-fit: cover;
  width: 100%;
}

.article-content {
  font-size: 16px;
  color: var(--color-text-muted);
}

.article-content h2 {
  color: var(--color-text);
  font-size: 24px;
  margin: 36px 0 14px;
}

.article-content h3 {
  color: var(--color-text);
  font-size: 19px;
  margin: 28px 0 12px;
}

.article-content p {
  margin-bottom: 18px;
}

.article-content blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-card);
  padding: 18px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-style: italic;
}

.article-content ul,
.article-content ol {
  padding-left: 24px;
  margin-bottom: 18px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-share {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 40px;
  padding-top: 24px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.article-nav a {
  color: var(--color-primary-light);
  font-size: 14px;
  font-weight: 600;
  max-width: 45%;
}

.article-nav a:hover {
  color: var(--color-accent-light);
}

/* ---------- 17. Filter Bar ---------- */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 999px;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(124, 92, 255, 0.35);
}

/* ---------- 18. Pagination ---------- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.page-link {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  font-weight: 700;
  transition: all 0.3s ease;
}

.page-link:hover,
.page-link.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
}

/* ---------- 19. Back to top ---------- */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(124, 92, 255, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all 0.35s ease;
  z-index: 900;
}

.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  transform: translateY(-4px);
}

/* ---------- 20. Footer ---------- */
.site-footer {
  background: #080a12;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-top: 16px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--color-text-muted);
  font-size: 14px;
}

.footer-col a:hover {
  color: var(--color-primary-light);
}

.footer-newsletter p {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-bottom: 16px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 12px 18px;
  color: var(--color-text);
  font-family: inherit;
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.newsletter-form button {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  font-size: 18px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.newsletter-form button:hover {
  transform: scale(1.1);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--color-text-dim);
  font-size: 13px;
}

.footer-bottom .links {
  display: flex;
  gap: 20px;
}

/* ---------- 21. Animations ---------- */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-mint);
  margin-right: 6px;
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(61, 214, 181, 0.6); }
  70% { box-shadow: 0 0 0 10px rgba(61, 214, 181, 0); }
}

/* ---------- 22. Responsive ---------- */
@media (max-width: 1100px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: rgba(13, 15, 26, 0.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 20px 24px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-130%);
    transition: transform 0.4s ease;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links a {
    width: 100%;
    padding: 14px 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    max-width: 420px;
    margin-inline: auto;
  }

  .float-top {
    left: -10px;
  }

  .float-bottom {
    right: -10px;
  }

  .contact-grid,
  .about-story {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

@media (max-width: 640px) {
  section {
    padding: 64px 0;
  }

  .features-grid,
  .services-grid,
  .news-grid,
  .values-grid {
    grid-template-columns: 1fr;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .hero {
    padding: 120px 0 80px;
  }

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

  .hero-stats {
    gap: 26px;
  }

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

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

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

  .nav-actions .btn-outline {
    display: none;
  }

  .float-card-hide {
    display: none;
  }
}

/* ---------- 23. Accessibility & Reduced Motion ---------- */
:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}