/* ===== 临沧鸿升传媒 官网样式 V2（大气高端 · 电影感） ===== */
:root {
  --bg: #07090f;
  --bg-2: #0c111c;
  --bg-3: #111827;
  --card: #0f1522;
  --line: rgba(255,255,255,.07);
  --gold: #c9a35a;
  --gold-2: #ecd9a0;
  --gold-3: #8a6a2f;
  --red: #b8302c;
  --text: #f0ede6;
  --muted: #9aa3b2;
  --radius: 14px;
  --font: "PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",-apple-system,sans-serif;
  --serif: "Songti SC","STSong","SimSun",serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:var(--font); background:var(--bg); color:var(--text); line-height:1.8; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; }
a { color:inherit; text-decoration:none; }
img, video { max-width:100%; display:block; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.center { text-align:center; }
.mt24 { margin-top:24px; }
.muted { color:var(--muted); }
.small { font-size:.88rem; }
.accent { color:var(--gold-2); }
.btn { display:inline-block; padding:14px 34px; border-radius:4px; font-weight:600; font-size:.95rem; letter-spacing:2px; transition:all .3s; border:none; cursor:pointer; }
.btn-gold { background:linear-gradient(135deg,var(--gold),var(--gold-2)); color:#141005; box-shadow:0 6px 30px rgba(201,163,90,.25); position:relative; overflow:hidden; }
.btn-gold::after { content:""; position:absolute; top:0; left:-100%; width:100%; height:100%; background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent); transition:left .6s; }
.btn-gold:hover { transform:translateY(-2px); box-shadow:0 10px 40px rgba(201,163,90,.4); }
.btn-gold:hover::after { left:100%; }
.btn-ghost { border:1px solid rgba(201,163,90,.5); color:var(--gold-2); background:transparent; }
.btn-ghost:hover { background:rgba(201,163,90,.1); border-color:var(--gold-2); }
.btn-lg { padding:16px 48px; font-size:1.02rem; }
.btn-block { width:100%; text-align:center; }

/* ===== Header ===== */
.site-header { position:sticky; top:0; z-index:100; background:rgba(7,9,15,.85); backdrop-filter:blur(16px) saturate(140%); border-bottom:1px solid var(--line); }
.site-header::after { content:""; position:absolute; bottom:-1px; left:0; right:0; height:1px; background:linear-gradient(90deg,transparent,rgba(201,163,90,.6),transparent); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:76px; }
.brand { display:flex; align-items:center; gap:14px; }
.brand-mark { width:44px; height:44px; border-radius:10px; background:linear-gradient(135deg,var(--gold),var(--gold-2)); color:#141005; font-size:24px; font-weight:800; display:flex; align-items:center; justify-content:center; box-shadow:0 4px 20px rgba(201,163,90,.35); font-family:var(--serif); }
.brand-text strong { display:block; font-size:1.12rem; letter-spacing:3px; font-weight:700; }
.brand-text small { font-size:.66rem; color:var(--muted); letter-spacing:4px; }
.main-nav { display:flex; gap:4px; }
.main-nav a { padding:10px 20px; border-radius:4px; font-size:.94rem; color:var(--muted); transition:all .25s; letter-spacing:1px; position:relative; }
.main-nav a::after { content:""; position:absolute; left:50%; bottom:4px; width:0; height:2px; background:var(--gold); transition:all .3s; transform:translateX(-50%); }
.main-nav a:hover { color:var(--text); }
.main-nav a:hover::after { width:60%; }
.main-nav a.active { color:var(--gold-2); }
.main-nav a.active::after { width:60%; }
.nav-toggle { display:none; background:none; border:none; color:var(--text); font-size:24px; cursor:pointer; }

/* ===== Hero ===== */
.hero { position:relative; padding:150px 0 170px; overflow:hidden; text-align:center; }
.hero-bg { position:absolute; inset:0; background:
  radial-gradient(ellipse 90% 65% at 50% -15%, rgba(201,163,90,.2), transparent 62%),
  radial-gradient(ellipse 55% 45% at 15% 115%, rgba(184,48,44,.14), transparent 60%),
  radial-gradient(ellipse 55% 45% at 85% 115%, rgba(138,106,47,.14), transparent 60%),
  linear-gradient(180deg,#080b12 0%,var(--bg) 100%); }
.hero-bg::after { content:""; position:absolute; inset:0; background-image:
  linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:64px 64px; mask-image:radial-gradient(ellipse 75% 65% at 50% 40%,#000 25%,transparent 78%); }
.hero-lines { position:absolute; inset:0; pointer-events:none; }
.hero-lines::before, .hero-lines::after { content:""; position:absolute; width:60%; height:60%; border:1px solid rgba(201,163,90,.14); border-radius:50%; top:50%; left:50%; transform:translate(-50%,-50%); }
.hero-lines::after { width:90%; height:90%; opacity:.6; }
.hero-content { position:relative; z-index:2; }
.hero-tag { display:inline-flex; align-items:center; gap:10px; padding:8px 22px; border:1px solid rgba(201,163,90,.4); border-radius:2px; color:var(--gold-2); font-size:.8rem; letter-spacing:4px; margin-bottom:36px; background:rgba(201,163,90,.06); }
.hero-tag::before, .hero-tag::after { content:""; width:26px; height:1px; background:rgba(201,163,90,.6); }
.hero h1 { font-size:clamp(2.6rem,6vw,4.4rem); font-weight:800; letter-spacing:4px; line-height:1.25; text-shadow:0 4px 40px rgba(0,0,0,.6); }
.hero h1 .accent { background:linear-gradient(135deg,var(--gold-2),var(--gold)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero-sub { max-width:760px; margin:30px auto 44px; color:var(--muted); font-size:1.08rem; letter-spacing:.5px; }
.hero-actions { display:flex; gap:18px; justify-content:center; flex-wrap:wrap; }

/* ===== Stats bar ===== */
.stats-bar { border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:rgba(15,21,34,.6); backdrop-filter:blur(8px); }
.stats-inner { display:grid; grid-template-columns:repeat(4,1fr); gap:0; }
.stat-item { padding:36px 20px; text-align:center; position:relative; }
.stat-item + .stat-item::before { content:""; position:absolute; left:0; top:22%; height:56%; width:1px; background:var(--line); }
.stat-item .num { font-size:2.4rem; font-weight:800; color:var(--gold-2); font-family:var(--font); letter-spacing:1px; }
.stat-item .lbl { font-size:.82rem; color:var(--muted); letter-spacing:3px; margin-top:6px; }

/* ===== Section ===== */
.section { padding:110px 0; }
.section-dark { background:linear-gradient(180deg,var(--bg-2),var(--bg)); border-top:1px solid var(--line); border-bottom:1px solid var(--line); position:relative; }
.section-head { text-align:center; margin-bottom:60px; }
.section-en { color:var(--gold); letter-spacing:6px; font-size:.76rem; margin-bottom:12px; }
.section-head h2 { font-size:clamp(1.9rem,4vw,2.6rem); font-weight:800; letter-spacing:3px; position:relative; display:inline-block; }
.section-head h2::after { content:""; position:absolute; left:50%; bottom:-16px; transform:translateX(-50%); width:60px; height:2px; background:linear-gradient(90deg,transparent,var(--gold),transparent); }
.section-head .muted { margin-top:26px; font-size:.95rem; }

/* ===== Biz cards ===== */
.biz-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:24px; }
.biz-card { background:linear-gradient(160deg,var(--card),var(--bg-2)); border:1px solid var(--line); border-radius:var(--radius); padding:38px 30px; transition:all .35s; position:relative; overflow:hidden; }
.biz-card::before { content:""; position:absolute; top:0; left:0; right:0; height:2px; background:linear-gradient(90deg,transparent,var(--gold),transparent); opacity:0; transition:opacity .35s; }
.biz-card:hover { transform:translateY(-6px); border-color:rgba(201,163,90,.4); box-shadow:0 20px 60px rgba(0,0,0,.5); }
.biz-card:hover::before { opacity:1; }
.biz-icon { font-size:2.2rem; margin-bottom:20px; filter:drop-shadow(0 4px 12px rgba(201,163,90,.25)); }
.biz-card h3 { font-size:1.2rem; margin-bottom:12px; color:var(--gold-2); letter-spacing:2px; }
.biz-card p { color:var(--muted); font-size:.94rem; }

/* ===== Case ===== */
.case-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(340px,1fr)); gap:26px; }
.case-card { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; transition:all .35s; }
.case-card:hover { transform:translateY(-6px); box-shadow:0 24px 70px rgba(0,0,0,.55); border-color:rgba(201,163,90,.35); }
.case-media { position:relative; aspect-ratio:16/10; background:#000; overflow:hidden; }
.case-media video { width:100%; height:100%; object-fit:cover; }
.case-media::after { content:""; position:absolute; inset:0; background:linear-gradient(180deg,transparent 55%,rgba(7,9,15,.75)); pointer-events:none; }
.case-placeholder { width:100%; height:100%; background-size:cover; background-position:center; display:flex; align-items:center; justify-content:center; background-color:#0d1117; }
.case-placeholder span { width:72px; height:72px; border-radius:50%; background:rgba(201,163,90,.92); color:#141005; font-size:24px; display:flex; align-items:center; justify-content:center; padding-left:5px; box-shadow:0 8px 30px rgba(201,163,90,.4); transition:transform .3s; }
.case-card:hover .case-placeholder span { transform:scale(1.12); }
.case-cat { position:absolute; top:14px; left:14px; z-index:2; padding:5px 14px; border-radius:2px; background:rgba(7,9,15,.82); border:1px solid rgba(201,163,90,.5); color:var(--gold-2); font-size:.76rem; letter-spacing:1px; backdrop-filter:blur(6px); }
.case-body { padding:24px 26px 28px; }
.case-body h3 { font-size:1.1rem; margin-bottom:8px; letter-spacing:1px; }
.case-body p { margin-top:4px; }

/* ===== Adv ===== */
.adv-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:22px; }
.adv-card { background:linear-gradient(160deg,var(--card),var(--bg-2)); border:1px solid var(--line); border-radius:var(--radius); padding:32px; transition:all .3s; }
.adv-card:hover { border-color:rgba(201,163,90,.35); transform:translateY(-4px); }
.adv-num { font-size:2.4rem; font-weight:800; color:var(--gold); opacity:.45; display:block; margin-bottom:14px; font-family:var(--font); }
.adv-card p { color:var(--text); font-size:.95rem; }

/* ===== Price ===== */
.price-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(255px,1fr)); gap:20px; }
.price-card { background:linear-gradient(160deg,var(--card),var(--bg-2)); border:1px solid var(--line); border-radius:var(--radius); padding:32px 24px; text-align:center; transition:all .3s; }
.price-card:hover { border-color:rgba(201,163,90,.5); transform:translateY(-5px); box-shadow:0 16px 50px rgba(0,0,0,.45); }
.price-card h3 { font-size:1.02rem; margin-bottom:6px; letter-spacing:1px; }
.price { margin:16px 0; }
.price-num { font-size:2.4rem; font-weight:800; color:var(--gold-2); font-family:var(--font); letter-spacing:1px; }
.price-unit { color:var(--muted); font-size:.85rem; margin-left:4px; }

.price-table-wrap { overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); background:var(--card); }
.price-table { width:100%; border-collapse:collapse; min-width:780px; }
.price-table th { background:linear-gradient(180deg,var(--bg-3),var(--bg-2)); color:var(--gold-2); padding:16px 18px; text-align:left; font-size:.9rem; letter-spacing:1px; white-space:nowrap; }
.price-table td { padding:15px 18px; border-top:1px solid var(--line); font-size:.9rem; vertical-align:top; }
.price-table tr:hover td { background:rgba(201,163,90,.04); }
.price-table .td-name { color:var(--text); font-weight:600; white-space:nowrap; }
.price-table .td-price { color:var(--gold-2); font-weight:700; white-space:nowrap; }
.price-table .td-desc { color:var(--muted); }
.note-box { background:var(--card); border:1px solid var(--line); border-left:3px solid var(--gold); border-radius:var(--radius); padding:30px 32px; margin-top:34px; }
.note-box h3 { margin-bottom:14px; color:var(--gold-2); letter-spacing:1px; }
.note-box li { margin:9px 0 9px 18px; color:var(--muted); font-size:.92rem; }

/* ===== Page hero ===== */
.page-hero { padding:110px 0 70px; text-align:center; position:relative; overflow:hidden; background:radial-gradient(ellipse 80% 60% at 50% -20%, rgba(201,163,90,.14), transparent 60%), linear-gradient(180deg,var(--bg-2),var(--bg)); border-bottom:1px solid var(--line); }
.page-hero h1 { font-size:clamp(2rem,4.5vw,3rem); margin:10px 0 14px; letter-spacing:4px; }
.page-hero .section-en { margin-bottom:0; }

/* ===== Filter ===== */
.filter-bar { display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-bottom:46px; }
.chip { padding:9px 24px; border-radius:2px; border:1px solid var(--line); color:var(--muted); font-size:.88rem; letter-spacing:1px; transition:all .25s; }
.chip:hover { color:var(--text); border-color:var(--gold); }
.chip.active { background:linear-gradient(135deg,var(--gold),var(--gold-2)); color:#141005; border-color:transparent; font-weight:600; box-shadow:0 4px 20px rgba(201,163,90,.3); }
.empty { text-align:center; padding:70px 0; color:var(--muted); }

/* ===== Two col ===== */
.two-col { display:grid; grid-template-columns:1.2fr 1fr; gap:56px; align-items:start; }
.about-panel { background:linear-gradient(160deg,var(--card),var(--bg-2)); border:1px solid var(--line); border-radius:var(--radius); padding:36px; }
.about-list { list-style:none; }
.about-list li { padding:11px 0; border-bottom:1px solid var(--line); color:var(--muted); font-size:.94rem; }
.about-list li::before { content:"◆ "; color:var(--gold); font-size:.7rem; vertical-align:middle; }
.coop-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:24px; }
.coop-card { background:linear-gradient(160deg,var(--card),var(--bg-2)); border:1px solid var(--line); border-radius:var(--radius); padding:36px; text-align:center; transition:all .3s; }
.coop-card:hover { border-color:rgba(201,163,90,.4); transform:translateY(-4px); }
.coop-card h3 { color:var(--gold-2); margin-bottom:12px; letter-spacing:2px; }

/* ===== Contact ===== */
.contact-info .info-row { display:flex; gap:16px; padding:16px 0; border-bottom:1px solid var(--line); }
.contact-info .info-row span { width:70px; color:var(--muted); letter-spacing:2px; }
.contact-info .info-row strong { color:var(--gold-2); letter-spacing:1px; }
.contact-form { background:linear-gradient(160deg,var(--card),var(--bg-2)); border:1px solid var(--line); border-radius:var(--radius); padding:40px; }
.contact-form label { display:block; margin:18px 0 8px; font-size:.9rem; color:var(--muted); letter-spacing:1px; }
.contact-form input, .contact-form textarea, .admin-form input, .admin-form textarea, .admin-form select { width:100%; background:var(--bg); border:1px solid var(--line); border-radius:4px; padding:13px 16px; color:var(--text); font-size:.95rem; font-family:inherit; transition:border .25s; }
.contact-form input:focus, .contact-form textarea:focus, .admin-form input:focus, .admin-form textarea:focus, .admin-form select:focus { outline:none; border-color:var(--gold); box-shadow:0 0 0 3px rgba(201,163,90,.1); }
.alert { padding:13px 18px; border-radius:6px; margin-bottom:18px; font-size:.9rem; }
.alert-ok { background:rgba(46,204,113,.1); color:#58d68d; border:1px solid rgba(46,204,113,.35); }
.alert-err { background:rgba(231,76,60,.1); color:#e74c3c; border:1px solid rgba(231,76,60,.35); }

/* ===== CTA ===== */
.cta { padding:110px 0; text-align:center; position:relative; overflow:hidden; background:
  radial-gradient(ellipse 60% 80% at 50% 50%, rgba(201,163,90,.15), transparent 70%), var(--bg-2); border-top:1px solid var(--line); }
.cta h2 { font-size:clamp(1.8rem,4vw,2.6rem); margin-bottom:16px; letter-spacing:3px; }
.cta p { color:var(--muted); margin-bottom:36px; font-size:1.02rem; }

/* ===== Footer ===== */
.site-footer { background:var(--bg-3); border-top:1px solid var(--line); padding:70px 0 28px; }
.footer-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:40px; margin-bottom:44px; }
.site-footer h4 { color:var(--gold-2); margin-bottom:16px; font-size:1.02rem; letter-spacing:2px; }
.site-footer p { font-size:.9rem; margin:7px 0; color:var(--muted); }
.footer-bottom { border-top:1px solid var(--line); padding-top:20px; text-align:center; color:var(--muted); font-size:.82rem; }

/* ===== 企业宣传片（打开即播） ===== */
.promo-section { padding-top:10px; scroll-margin-top:74px; }
.promo-player { position:relative; border-radius:18px; overflow:hidden; border:1px solid rgba(212,175,55,.4); box-shadow:0 24px 70px rgba(0,0,0,.5), 0 0 46px rgba(212,175,55,.08); background:#000; }
.promo-player video { width:100%; display:block; max-height:76vh; object-fit:cover; background:#000; }
.promo-badge { position:absolute; left:18px; top:18px; z-index:3; padding:7px 16px; border-radius:999px; background:rgba(212,175,55,.92); color:#0b0f16; font-size:12px; letter-spacing:2px; font-weight:600; box-shadow:0 4px 18px rgba(0,0,0,.4); }
.promo-sound { position:absolute; right:18px; bottom:18px; z-index:3; min-width:104px; padding:9px 16px; border-radius:999px; border:1px solid rgba(255,255,255,.35); background:rgba(0,0,0,.55); color:#fff; font-size:13px; letter-spacing:1px; cursor:pointer; backdrop-filter:blur(6px); transition:all .25s; }
.promo-sound:hover { background:rgba(212,175,55,.88); border-color:transparent; color:#0b0f16; }
.promo-pp { position:absolute; left:50%; top:50%; transform:translate(-50%,-50%); z-index:3; width:64px; height:64px; border-radius:50%; border:1px solid rgba(255,255,255,.4); background:rgba(0,0,0,.5); color:#fff; font-size:22px; line-height:1; cursor:pointer; backdrop-filter:blur(6px); transition:all .25s; }
.promo-pp:hover { background:rgba(212,175,55,.9); color:#0b0f16; border-color:transparent; }
.promo-overlay { display:none; position:absolute; inset:0; z-index:4; align-items:center; justify-content:center; flex-direction:column; gap:10px; background:rgba(8,11,18,.5); cursor:pointer; }
.promo-overlay-icon { width:76px; height:76px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:26px; color:#0b0f16; background:linear-gradient(135deg,#f0d483,#d4af37); box-shadow:0 8px 34px rgba(212,175,55,.5); padding-left:6px; }
.promo-overlay em { font-style:normal; color:#fff; font-size:14px; letter-spacing:3px; text-shadow:0 2px 8px rgba(0,0,0,.6); }
@media (max-width:860px) {
  .promo-player { border-radius:12px; }
  .promo-badge { left:10px; top:10px; font-size:11px; padding:5px 12px; }
  .promo-sound { right:10px; bottom:10px; min-width:92px; padding:7px 12px; font-size:12px; }
}

/* ===== Responsive ===== */
@media (max-width:860px) {
  .main-nav { position:fixed; top:76px; left:0; right:0; background:rgba(10,13,20,.98); flex-direction:column; padding:18px 24px; gap:4px; border-bottom:1px solid var(--line); display:none; z-index:99; }
  .main-nav.open { display:flex; }
  .nav-toggle { display:block; }
  .section { padding:70px 0; }
  .two-col { grid-template-columns:1fr; gap:40px; }
  .hero { padding:100px 0 120px; }
  .stats-inner { grid-template-columns:repeat(2,1fr); }
  .stat-item + .stat-item::before { display:none; }
}