/* ==========================================================
   糖心传媒在线免费观看 - 全站样式
   响应式影视平台主题：深色影视质感 + 金色点缀
   ========================================================== */

/* ---------- CSS Variables ---------- */
:root {
  --color-primary: #ff8c1a;
  --color-primary-dark: #e67300;
  --color-accent: #ffd166;
  --color-bg: #0d0f17;
  --color-bg-alt: #151927;
  --color-card: #1b2033;
  --color-card-hover: #232a42;
  --color-text: #f5f6fa;
  --color-text-muted: #9aa1b5;
  --color-border: rgba(255, 140, 26, 0.25);
  --gradient-main: linear-gradient(135deg, #ff8c1a 0%, #ffd166 100%);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  --shadow-hover: 0 18px 44px rgba(255, 140, 26, 0.22);
  --font-body: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-display: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --header-height: 72px;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ---------- Layout helpers ---------- */
.container { width: min(1200px, 92%); margin: 0 auto; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 16px;
}

.brand { font-family: var(--font-display); }
.brand a { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-logo {
  width: 38px; height: 38px;
  background: var(--gradient-main);
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 22px;
  color: #14100a;
  box-shadow: 0 4px 14px rgba(255, 140, 26, 0.35);
}
.brand-name { font-size: 1.18rem; letter-spacing: 0.5px; white-space: nowrap; }
.brand-name em { font-style: normal; color: var(--color-primary); }

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav a {
  display: block;
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  transition: var(--transition);
  position: relative;
}
.nav a:hover { color: var(--color-text); background: rgba(255, 255, 255, 0.07); }
.nav a.active { color: #14100a; background: var(--gradient-main); font-weight: 600; }

.nav-toggle {
  display: none;
  background: none; border: 0;
  width: 42px; height: 42px;
  cursor: pointer;
  color: var(--color-text);
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  align-items: center;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: var(--transition); }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: var(--header-height);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(13, 15, 23, 0.98);
    padding: 10px 5%;
    gap: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transform: translateY(-140%);
    transition: transform 0.3s ease;
    pointer-events: none;
  }
  .nav.open { transform: translateY(0); pointer-events: auto; }
  .nav a { padding: 12px 14px; border-radius: 10px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 110px 0 90px;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(255, 140, 26, 0.28), transparent 55%),
    radial-gradient(ellipse at 85% 80%, rgba(255, 209, 102, 0.16), transparent 50%),
    linear-gradient(180deg, #0d0f17 0%, #141828 100%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--color-accent);
  background: rgba(255, 140, 26, 0.1);
  animation: fadeInDown 0.7s ease both;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.2vw, 3.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 22px 0 18px;
  max-width: 780px;
  animation: fadeInUp 0.8s ease both 0.1s;
}
.hero-title .highlight { background: var(--gradient-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease both 0.2s;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; animation: fadeInUp 0.8s ease both 0.3s; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 0;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary { background: var(--gradient-main); color: #14100a; box-shadow: 0 8px 22px rgba(255, 140, 26, 0.35); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(255, 140, 26, 0.5); }
.btn-outline { border: 1px solid rgba(255, 255, 255, 0.25); color: var(--color-text); background: rgba(255, 255, 255, 0.04); }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-accent); transform: translateY(-3px); }

.hero-stats {
  display: flex; flex-wrap: wrap; gap: 28px;
  margin-top: 46px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  animation: fadeInUp 0.8s ease both 0.4s;
}
.hero-stats .stat strong { font-size: 1.7rem; font-family: var(--font-display); color: var(--color-accent); }
.hero-stats .stat span { display: block; font-size: 0.85rem; color: var(--color-text-muted); }

/* ---------- Section common ---------- */
.section { padding: 80px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .kicker { color: var(--color-primary); font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; font-weight: 700; }
.section-head h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 3.4vw, 2.4rem); font-weight: 800; margin: 8px 0 12px; }
.section-head p { color: var(--color-text-muted); }

/* ---------- Features ---------- */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature-card {
  background: var(--color-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); background: var(--color-card-hover); box-shadow: var(--shadow); }
.feature-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: rgba(255, 140, 26, 0.15);
  color: var(--color-primary);
  display: grid; place-items: center;
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 1.06rem; margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--color-text-muted); }

/* ---------- Cards (content) ---------- */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.content-card {
  background: var(--color-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}
.content-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-color: var(--color-border); }
.content-card .thumb { position: relative; overflow: hidden; aspect-ratio: 16 / 10; }
.content-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.content-card:hover .thumb img { transform: scale(1.08); }
.badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--gradient-main); color: #14100a;
  font-size: 0.72rem; font-weight: 700;
  padding: 4px 10px; border-radius: 999px;
}
.badge.badge-dark { background: rgba(13, 15, 23, 0.75); color: var(--color-text); backdrop-filter: blur(4px); }
.content-card .card-body { padding: 16px 18px 20px; }
.content-card .card-body h3 { font-size: 1rem; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.content-card .card-body p { font-size: 0.85rem; color: var(--color-text-muted); }
.card-meta { display: flex; gap: 10px; font-size: 0.78rem; color: var(--color-text-muted); margin-top: 10px; }

/* ---------- Services / Info ---------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.service-item {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 30px 26px;
  border-left: 3px solid var(--color-primary);
  transition: var(--transition);
}
.service-item:hover { transform: translateY(-5px); background: var(--color-card-hover); }
.service-item h3 { font-size: 1.08rem; margin-bottom: 10px; }
.service-item p { font-size: 0.9rem; color: var(--color-text-muted); }

/* ---------- CTA ---------- */
.cta {
  background: var(--gradient-main);
  color: #14100a;
  padding: 64px 0;
  text-align: center;
}
.cta h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 3.4vw, 2.4rem); font-weight: 800; margin-bottom: 12px; }
.cta p { font-size: 1rem; max-width: 640px; margin: 0 auto 26px; color: rgba(20, 16, 10, 0.85); }
.cta .btn { background: #14100a; color: #fff; }
.cta .btn:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(0, 0, 0, 0.3); }

/* ---------- Footer ---------- */
.site-footer {
  background: #080a10;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 44px 0 20px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 30px; }
.footer-brand .brand-name { font-size: 1.15rem; }
.footer-brand p { font-size: 0.86rem; color: var(--color-text-muted); margin-top: 10px; max-width: 320px; }
.footer-col h4 { font-size: 0.95rem; margin-bottom: 14px; color: var(--color-accent); }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul a { font-size: 0.86rem; color: var(--color-text-muted); transition: var(--transition); }
.footer-col ul a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 18px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}
.footer-bottom .copyright { font-weight: 600; color: var(--color-text); }

/* ---------- Breadcrumb / Page head ---------- */
.page-hero { padding: 70px 0 46px; background: linear-gradient(180deg, #131624, var(--color-bg)); border-bottom: 1px solid rgba(255,255,255,0.05); }
.page-hero h1 { font-family: var(--font-display); font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 800; }
.page-hero .breadcrumb { margin-top: 12px; font-size: 0.86rem; color: var(--color-text-muted); }
.page-hero .breadcrumb a { color: var(--color-primary); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.about-grid .about-text h2 { font-size: 1.7rem; font-weight: 800; margin-bottom: 16px; }
.about-grid .about-text p { color: var(--color-text-muted); margin-bottom: 14px; }
.about-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.value-card { background: var(--color-card); border-radius: var(--radius); padding: 26px; text-align: center; transition: var(--transition); }
.value-card:hover { transform: translateY(-5px); }
.value-card .value-icon { font-size: 2rem; margin-bottom: 10px; }
.value-card h3 { font-size: 1rem; margin-bottom: 8px; }
.value-card p { font-size: 0.86rem; color: var(--color-text-muted); }

.timeline { margin-top: 34px; }
.timeline li { display: flex; gap: 18px; margin-bottom: 22px; }
.timeline .year { font-weight: 800; color: var(--color-primary); min-width: 70px; font-family: var(--font-display); }
.timeline .desc { color: var(--color-text-muted); font-size: 0.92rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; }
.contact-form { background: var(--color-card); border-radius: var(--radius); padding: 32px; }
.contact-form h2 { font-size: 1.4rem; margin-bottom: 20px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.88rem; margin-bottom: 6px; color: var(--color-text-muted); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 14px;
  background: var(--color-bg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.93rem;
  transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(255, 140, 26, 0.15);
}
.form-group textarea { min-height: 130px; resize: vertical; }
.form-tip { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }

.contact-info { display: flex; flex-direction: column; gap: 18px; }
.info-card { background: var(--color-card); border-radius: var(--radius); padding: 22px 24px; display: flex; gap: 16px; align-items: flex-start; }
.info-card .info-icon { font-size: 1.5rem; color: var(--color-primary); }
.info-card h3 { font-size: 1rem; margin-bottom: 4px; }
.info-card p { font-size: 0.88rem; color: var(--color-text-muted); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 860px; margin: 40px auto 0; }
.faq-item {
  background: var(--color-card);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.faq-item details > summary { cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 0.98rem; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item details > summary::-webkit-details-marker { display: none; }
.faq-item details > summary::after { content: "+"; font-size: 1.4rem; color: var(--color-primary); transition: var(--transition); }
.faq-item details[open] > summary::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 22px 20px; color: var(--color-text-muted); font-size: 0.92rem; }

/* ---------- News ---------- */
.news-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card { background: var(--color-card); border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(255,255,255,0.05); transition: var(--transition); display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.news-card .thumb { aspect-ratio: 16 / 9; overflow: hidden; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .thumb img { transform: scale(1.06); }
.news-card .news-body { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.news-card .news-body h3 { font-size: 1.02rem; margin-bottom: 8px; line-height: 1.45; }
.news-card .news-body h3 a:hover { color: var(--color-primary); }
.news-card .news-body p { font-size: 0.87rem; color: var(--color-text-muted); flex: 1; }
.news-meta { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 12px; display: flex; gap: 12px; }
.news-more { margin-top: 14px; font-size: 0.86rem; color: var(--color-primary); font-weight: 600; }

/* ---------- News detail ---------- */
.article { max-width: 820px; margin: 0 auto; }
.article .article-header { text-align: center; margin-bottom: 30px; }
.article .article-header h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 14px; }
.article-meta { display: flex; justify-content: center; gap: 16px; font-size: 0.85rem; color: var(--color-text-muted); }
.article .article-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 26px; box-shadow: var(--shadow); }
.article .article-body p { margin-bottom: 18px; font-size: 0.98rem; color: #c9cede; }
.article .article-body h2 { font-size: 1.3rem; margin: 28px 0 12px; }
.article .article-body h3 { font-size: 1.08rem; margin: 22px 0 10px; color: var(--color-accent); }
.article .article-body ul { list-style: disc; padding-left: 24px; margin-bottom: 18px; color: #c9cede; }
.article .article-body ul li { margin-bottom: 6px; }
.article-tags { display: flex; gap: 10px; flex-wrap: wrap; margin: 26px 0; }
.article-tags span { background: rgba(255, 140, 26, 0.12); color: var(--color-primary); border-radius: 999px; padding: 5px 14px; font-size: 0.8rem; }
.article-nav { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; }
.article-nav a { font-size: 0.9rem; color: var(--color-primary); max-width: 45%; }

/* ---------- Products / Library ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.filter-btn {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover { color: var(--color-text); border-color: var(--color-primary); }
.filter-btn.active { background: var(--gradient-main); color: #14100a; border-color: transparent; font-weight: 600; }

.library-section { margin-bottom: 44px; }
.library-section .sec-title { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.library-section .sec-title h2 { font-size: 1.3rem; font-weight: 800; }
.library-section .sec-title .count { font-size: 0.8rem; color: var(--color-text-muted); background: rgba(255,255,255,0.07); padding: 3px 10px; border-radius: 999px; }

/* ---------- Animations ---------- */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-18px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .news-list { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .hero { padding: 84px 0 64px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .hero-stats { gap: 18px; }
}

@media (max-width: 520px) {
  .card-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .news-list { grid-template-columns: 1fr; }
  .brand-name { font-size: 1rem; }
}