/* ============================================================
   KTVS WORLD — 精奢傳媒集團官網
   香檳金 × 近黑 × 暖白 · 細體寬字距 · 襯線裝飾
   ============================================================ */

:root{
  --bg:#0a0a0b;
  --bg-2:#0e0e0f;
  --surface:#141416;
  --surface-2:#1a1a1d;
  --surface-3:#202024;
  --border:rgba(255,255,255,.07);
  --border-soft:rgba(255,255,255,.05);

  --text:#f4f1ea;
  --text-2:#b6b1a5;
  --text-3:#807d72;

  --gold:#c9a96b;
  --gold-2:#e3cf9f;
  --gold-deep:#a8894f;
  --gold-dim:rgba(201,169,107,.14);
  --gold-glow:rgba(201,169,107,.22);

  --radius:14px;
  --shadow-card:0 18px 50px rgba(0,0,0,.55);

  --font:"PingFang TC","Noto Sans TC","Microsoft JhengHei","Heiti TC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-serif:"Playfair Display",Georgia,"Times New Roman","Songti TC",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:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none}

/* 全站背景：深黑 + 頂部暖金暈染 + 細微顆粒 */
body::before{
  content:"";position:fixed;inset:0;z-index:-3;
  background:
    radial-gradient(1400px 700px at 50% -10%, rgba(201,169,107,.10), transparent 60%),
    linear-gradient(180deg,#0c0c0d 0%, #080809 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.020) 1px, transparent 1px);
  background-size:24px 24px;
}

.container{width:min(1240px,90%);margin:0 auto}

/* ---------- 通用 ---------- */
.section-eyebrow{
  display:inline-flex;align-items:center;gap:14px;
  font-size:12px;font-weight:600;letter-spacing:.34em;text-transform:uppercase;
  color:var(--gold);
}
.section-eyebrow::before{content:"";width:28px;height:1px;background:var(--gold)}

/* ---------- 頂部列 ---------- */
.header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,10,11,.78);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border-soft);
}
.header-inner{display:flex;align-items:center;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:14px}
.brand .brand-logo{width:78px;height:78px;flex-shrink:0;display:block}
.brand .word{font-family:var(--font-serif);font-size:22px;letter-spacing:.14em;font-weight:600;line-height:1.1}
.brand .word b{color:var(--gold);font-weight:600}
.header .spacer{flex:1}

/* 頂部導航 */
.head-nav{display:flex;align-items:center;gap:6px}
.head-nav a{
  padding:8px 16px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--text-2);transition:.2s;
}
.head-nav a:hover{color:var(--text)}
.head-nav a.active{color:var(--gold);background:var(--gold-dim)}

/* 語言切換 */
.lang{
  display:inline-flex;align-items:center;gap:2px;background:rgba(255,255,255,.04);
  border:1px solid var(--border);border-radius:999px;padding:3px;flex-shrink:0;
}
.lang button{padding:6px 16px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--text-3);transition:.2s}
.lang button.on{background:var(--gold);color:#1a1406}

/* ---------- Hero ---------- */
.hero{position:relative;padding:120px 0 90px;overflow:hidden;text-align:center}
.hero-bg{position:absolute;inset:0;z-index:-1;overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(90px)}
.orb-a{width:560px;height:560px;top:-260px;left:50%;transform:translateX(-50%);background:radial-gradient(circle,rgba(201,169,107,.24),transparent 65%)}
.orb-b{width:420px;height:420px;bottom:-220px;right:-120px;background:radial-gradient(circle,rgba(201,169,107,.10),transparent 65%)}
.rings{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:1200px;height:1200px;opacity:.5}
.ring{stroke:rgba(201,169,107,.14);stroke-width:1}
.ring.r2{stroke:rgba(201,169,107,.08)}
.ring.r3{stroke:rgba(255,255,255,.04)}

/* ---------- 進場動效 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}
@keyframes ringsSpin{from{transform:translate(-50%,-50%) rotate(0deg)}to{transform:translate(-50%,-50%) rotate(360deg)}}
.rings{animation:ringsSpin 80s linear infinite}
.hero-eyebrow{animation:fadeUp .9s cubic-bezier(.2,.7,.2,1) both}
.hero-title{animation:fadeUp .9s .12s cubic-bezier(.2,.7,.2,1) both}
.hero-rule{animation:fadeUp .9s .24s cubic-bezier(.2,.7,.2,1) both}
.hero-sub{animation:fadeUp .9s .36s cubic-bezier(.2,.7,.2,1) both}
.hero-actions{animation:fadeUp .9s .48s cubic-bezier(.2,.7,.2,1) both}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

.hero-inner{display:flex;flex-direction:column;align-items:center;gap:0}
.hero-eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.46em;text-transform:uppercase;color:var(--gold);
}
.hero-title{display:flex;flex-direction:column;align-items:center;margin:26px 0 0}
.hero-title .t-cn{
  font-size:clamp(40px,6.4vw,74px);font-weight:600;letter-spacing:.06em;line-height:1.14;
}
.hero-title .t-accent{color:var(--gold)}
.hero-title .t-en{
  font-family:var(--font-serif);font-style:italic;font-weight:400;
  font-size:clamp(18px,2.4vw,26px);letter-spacing:.18em;color:var(--text-2);margin-top:14px;
}
.hero-rule{display:flex;align-items:center;gap:12px;margin:30px 0 0}
.hero-rule::before,.hero-rule::after{content:"";width:64px;height:1px;background:linear-gradient(90deg,transparent,rgba(201,169,107,.5))}
.hero-rule::after{background:linear-gradient(90deg,rgba(201,169,107,.5),transparent)}
.hero-rule i{width:6px;height:6px;background:var(--gold);transform:rotate(45deg)}
.hero-sub{max-width:660px;color:var(--text-2);font-size:16px;margin-top:30px}

.hero-actions{display:flex;gap:16px;margin-top:42px;flex-wrap:wrap;justify-content:center}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:999px;
  font-size:14px;font-weight:600;letter-spacing:.06em;transition:.22s;
}
.btn i{font-style:normal;transition:transform .22s}
.btn-gold{background:linear-gradient(135deg,var(--gold-2),var(--gold-deep));color:#1a1406;box-shadow:0 8px 28px rgba(201,169,107,.30)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 38px rgba(201,169,107,.42)}
.btn-gold:hover i{transform:translateX(4px)}
.btn-ghost{border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:rgba(201,169,107,.5);color:var(--gold)}

/* ---------- 集團介紹 ---------- */
.about{padding:120px 0 40px;scroll-margin-top:90px}
.about-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:60px;align-items:start}
.about-title{font-size:clamp(30px,3.6vw,44px);font-weight:600;letter-spacing:.04em;line-height:1.2;margin-top:20px}
.about-en{font-family:var(--font-serif);font-style:italic;font-size:15px;letter-spacing:.3em;color:var(--text-3);margin-top:16px}
.about-lead{
  font-family:var(--font-serif);font-style:italic;font-size:22px;color:var(--gold);letter-spacing:.04em;margin-bottom:26px;
}
.about-p{color:var(--text-2);font-size:16px;margin-bottom:18px;max-width:600px}
.about-values{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);
  border:1px solid var(--border);margin-top:70px;
}
.value{background:var(--bg-2);padding:44px 40px}
.value h3{font-size:19px;font-weight:600;letter-spacing:.03em;margin:0 0 12px}
.value p{font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- 里程碑 ---------- */
.milestones{padding:110px 0 10px;scroll-margin-top:90px}
.msec-head{margin-bottom:56px}
.msec-title{font-size:clamp(30px,3.6vw,44px);font-weight:600;letter-spacing:.04em;line-height:1.2;margin-top:20px}
.msec-en{font-family:var(--font-serif);font-style:italic;font-size:15px;letter-spacing:.3em;color:var(--text-3);margin-top:14px}

.timeline{max-width:920px}
.tl-item{position:relative;display:grid;grid-template-columns:150px 1fr;column-gap:56px;padding-bottom:52px}
.tl-item:last-child{padding-bottom:0}
.tl-item::after{ /* 竖線 */
  content:"";position:absolute;left:177px;top:14px;bottom:-6px;width:1px;
  background:linear-gradient(180deg,rgba(201,169,107,.42),rgba(201,169,107,.04));
}
.tl-item:last-child::after{display:none}
.tl-item::before{ /* 圓點 */
  content:"";position:absolute;left:173px;top:10px;width:9px;height:9px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 4px rgba(201,169,107,.13),0 0 16px rgba(201,169,107,.42);
}
.tl-year{font-family:var(--font-serif);font-style:italic;font-size:30px;font-weight:600;color:var(--gold);letter-spacing:.02em;line-height:1}
.tl-content{min-width:0}
.tl-title{font-size:20px;font-weight:600;letter-spacing:.02em;line-height:1.3}
.tl-desc{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:10px}

/* ---------- 集團新聞 ---------- */
.news{padding:110px 0 20px;scroll-margin-top:90px}
.news-grid{display:flex;flex-direction:column;gap:24px;max-width:920px}
.news-card{
  position:relative;background:linear-gradient(165deg,var(--surface-2),var(--surface));
  border:1px solid var(--border);border-radius:var(--radius);padding:34px 38px;
  transition:transform .3s cubic-bezier(.2,.7,.2,1), border-color .3s, box-shadow .3s;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(201,169,107,.42);box-shadow:var(--shadow-card)}
.news-meta{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.news-date{font-family:var(--font-serif);font-style:italic;font-size:14px;letter-spacing:.14em;color:var(--gold)}
.news-tag{
  font-size:10px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold-2);border:1px solid rgba(201,169,107,.35);background:var(--gold-dim);
  padding:4px 13px;border-radius:999px;
}
.news-title{font-size:22px;font-weight:600;letter-spacing:.02em;line-height:1.4;margin-bottom:14px}
.news-desc{font-size:14px;color:var(--text-2);line-height:1.85}

/* ---------- 分類導航列 ---------- */
.catbar{
  position:sticky;top:76px;z-index:55;
  background:rgba(10,10,11,.78);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border-soft);
}
.catbar-inner{display:flex;align-items:center;gap:26px;height:62px}
.catbar-label{font-size:11px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--text-3);white-space:nowrap;flex-shrink:0}
.catbar-links{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}
.catbar-links::-webkit-scrollbar{display:none}
.cat-link{
  display:inline-flex;align-items:center;gap:9px;padding:8px 15px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.05em;color:var(--text-2);white-space:nowrap;transition:.2s;
}
.cat-link .no{font-family:var(--font-serif);font-style:italic;font-size:11px;color:var(--text-3)}
.cat-link:hover{color:var(--text)}
.cat-link.active{color:var(--gold);background:var(--gold-dim)}
.cat-link.active .no{color:var(--gold)}

/* ---------- 頻道區塊 ---------- */
.sections{padding:0 0 20px}
.section{padding:90px 0 10px;scroll-margin-top:150px}
.section-head{display:flex;align-items:flex-end;gap:28px;margin-bottom:40px;padding-bottom:30px;border-bottom:1px solid var(--border-soft)}
.section-no{font-family:var(--font-serif);font-style:italic;font-size:15px;color:var(--gold);letter-spacing:.08em;flex-shrink:0;padding-bottom:4px}
.section-head .h2{font-size:clamp(26px,3.2vw,38px);font-weight:600;letter-spacing:.05em;line-height:1.1}
.section-head .en{font-family:var(--font-serif);font-style:italic;font-size:14px;letter-spacing:.24em;color:var(--text-3);text-transform:uppercase;margin-top:4px}
.section-head .lead{color:var(--text-3);font-size:14px;max-width:400px;margin-left:auto}

/* ---------- 頻道卡片 ---------- */
.chan-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.chan-card{
  position:relative;display:flex;flex-direction:column;
  background:linear-gradient(165deg,var(--surface-2),var(--surface));
  border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:transform .3s cubic-bezier(.2,.7,.2,1), border-color .3s, box-shadow .3s;
}
.chan-main{display:flex;flex-direction:column;flex:1;min-width:0;cursor:pointer}
.chan-card:hover{transform:translateY(-5px);border-color:rgba(201,169,107,.42);box-shadow:var(--shadow-card)}

.chan-logo{
  position:relative;aspect-ratio:2/1;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(120% 130% at 50% 0%, rgba(201,169,107,.10), transparent 60%),
    linear-gradient(180deg,#1b1b1e,#101013);
  padding:24px 30px;overflow:hidden;
}
.chan-logo::after{
  content:"";position:absolute;left:24px;right:24px;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,169,107,.28),transparent);
}
.chan-logo img{width:100%;height:100%;object-fit:contain;position:relative;z-index:1;filter:drop-shadow(0 4px 20px rgba(0,0,0,.45));transition:transform .55s cubic-bezier(.2,.7,.2,1)}
.chan-card:hover .chan-logo img{transform:scale(1.06)}
.logo-text{
  position:relative;z-index:1;text-align:center;font-family:var(--font-serif);
  font-weight:600;letter-spacing:.06em;line-height:1.25;
  font-size:clamp(20px,2.2vw,28px);
}
.logo-text small{display:block;font-family:var(--font);font-size:11px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--text-3);margin-top:8px}

.chan-badge{
  position:absolute;top:14px;right:14px;z-index:2;
  font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;
}
.chan-badge.online{background:rgba(201,169,107,.14);color:var(--gold-2);border:1px solid rgba(201,169,107,.34)}
.chan-badge.soon{background:rgba(255,255,255,.04);color:var(--text-3);border:1px solid var(--border)}

.chan-body{padding:20px 22px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.chan-name{font-size:18px;font-weight:600;letter-spacing:.02em;line-height:1.3}
.chan-name .sub{display:block;font-family:var(--font);font-size:12px;font-weight:500;letter-spacing:.06em;color:var(--text-3);margin-top:4px}
.chan-intro{font-size:13px;color:var(--text-2);line-height:1.7;flex:1}
.chan-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 22px 20px;padding-top:14px;border-top:1px solid var(--border-soft)}
.chan-guide{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--gold);border:1px solid rgba(201,169,107,.35);background:var(--gold-dim);
  padding:6px 14px;border-radius:999px;transition:.18s;
}
.chan-guide:hover{background:rgba(201,169,107,.24)}
.chan-guide .arr{transition:transform .25s}
.chan-card:hover .chan-guide .arr{transform:translateX(4px)}
.chan-foot-meta{display:flex;align-items:center;gap:12px}
.chan-visit{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--gold)}
.chan-visit .arr{transition:transform .25s}
.chan-card:hover .chan-visit .arr{transform:translateX(4px)}
.region-note{display:block;margin:-8px 22px 20px;font-size:11px;color:var(--gold);font-weight:600;letter-spacing:.04em}

/* ---------- 頁尾 ---------- */
.footer{border-top:1px solid var(--border-soft);background:var(--bg-2);margin-top:90px}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;padding:70px 0 50px}
.footer .fmark{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.footer .fmark .brand-logo{width:60px;height:60px;flex-shrink:0;display:block}
.footer .fmark .word{font-family:var(--font-serif);font-size:20px;letter-spacing:.14em;font-weight:600}
.footer .fmark .word b{color:var(--gold);font-weight:600}
.footer p{color:var(--text-3);font-size:13px;max-width:360px}
.footer h4{font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;margin-bottom:20px;color:var(--text)}
.footer ul li{margin-bottom:12px}
.footer ul a{color:var(--text-2);font-size:14px;transition:.15s}
.footer ul a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid var(--border-soft);padding:24px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.footer-bottom p{font-size:12px;color:var(--text-3)}

/* ---------- 響應式 ---------- */
@media(max-width:960px){
  .about-grid{grid-template-columns:1fr;gap:36px}
  .about-values{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .hero{padding:88px 0 64px}
  .about{padding:84px 0 20px}
  .section{padding:64px 0 4px}
  .section-head{flex-wrap:wrap}
  .section-head .lead{margin-left:0}
  .chan-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
  .footer-inner{grid-template-columns:1fr}
  .catbar-label{display:none}
  .brand .word{display:none}
  .head-nav a{padding:6px 11px;font-size:12px;letter-spacing:.03em}
  .header-inner{gap:10px}
  .header .spacer{display:none}
  .head-nav{flex:1;overflow-x:auto;scrollbar-width:none;min-width:0;justify-content:flex-start}
  .head-nav::-webkit-scrollbar{display:none}
  .head-nav a{flex-shrink:0}
  .milestones,.news{padding:72px 0 10px}
  .msec-head{margin-bottom:40px}
  .tl-item{grid-template-columns:1fr;gap:12px;padding:0 0 36px 20px;border-left:1px solid rgba(201,169,107,.28)}
  .tl-item::before,.tl-item::after{display:none}
  .tl-year{font-size:24px}
  .news-card{padding:26px 24px}
  .news-title{font-size:19px}
}