/* 美业清流 · v17 —— 取自品牌徽标：墨玉青绿、香槟金、暖象牙。Art Deco 拱形、阶梯、扇形光线，克制使用。
   深绿做底，长阅读放在暖象牙纸卡上。动效只做首次进入、切换、折叠与按压反馈，减弱动画时全部关闭位移。 */
:root{
  --jade-950:#04211a;--jade-900:#072a22;--jade-850:#0a3329;--jade-800:#0c3a2f;--jade-700:#11493b;--jade-600:#18594a;--jade-500:#2a6e5b;--jade-300:#8fb5a6;--jade-200:#b9d2c7;
  --gold:#d2b273;--gold-2:#e6cf9c;--gold-3:#f3e5c2;--gold-deep:#8a6a2c;--gold-ink:#6e5220;
  --ivory:#fbf6ea;--ivory-2:#f5ecd9;--ivory-3:#ede0c4;
  --ink:#1b2621;--ink-2:#3c4842;--muted:#5f6a63;
  --on-dark:#efe8d6;--on-dark-2:#c4cfc8;--on-dark-3:#93a79d;
  --a:#8a5f1e;--a-bg:#f6e7c4;--a-line:#c99a4b;      /* 主理人 A：左侧，象牙衬衫 · 暖金 */
  --b:#0f5a47;--b-bg:#d8ebe2;--b-line:#2f7e68;      /* 主理人 B：右侧，墨绿西装 · 玉绿 */
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --serif:"Songti SC","STSong","Noto Serif CJK SC","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --num:"Didot","Bodoni 72","Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --header:60px;--wrap:1160px;--read:740px;--gutter:clamp(16px,4vw,40px);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-padding-top:calc(var(--header) + 16px);-webkit-text-size-adjust:100%;text-size-adjust:100%;background:var(--jade-900)}
body{margin:0;color:var(--on-dark);font:16px/1.85 var(--sans);overflow-wrap:break-word;-webkit-font-smoothing:antialiased;
  background:radial-gradient(120% 60% at 50% 0,var(--jade-800) 0,var(--jade-900) 60%) no-repeat,var(--jade-900);min-height:100vh}
h1,h2,h3,p,figure,ol,ul{margin:0}
ol,ul{padding:0}
a{color:inherit;text-underline-offset:3px;text-decoration-thickness:1px}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0;padding:0}
button,a,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
img{max-width:100%}
:focus-visible{outline:2px solid var(--gold-2);outline-offset:3px;border-radius:4px}
.paper :focus-visible,.fold :focus-visible{outline-color:var(--jade-600)}
:focus:not(:focus-visible){outline:none}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:12px;top:-80px;z-index:100;background:var(--gold-2);color:var(--jade-900);padding:12px 18px;border-radius:6px;text-decoration:none;font-weight:600}
.skip-link:focus{top:10px}
main:focus{outline:none}

/* ---------- 按钮：hover 只做提示，按压有回馈，不依赖 hover ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:.04em;white-space:nowrap;
  transition:transform .18s var(--ease),background-color .18s,box-shadow .18s,border-color .18s,color .18s}
.btn:active{transform:translateY(1px) scale(.97)}
.btn-gold{color:var(--jade-900);background:linear-gradient(180deg,var(--gold-3),var(--gold) 70%);box-shadow:0 1px 0 rgba(255,255,255,.5) inset,0 6px 18px -8px rgba(210,178,115,.7)}
.btn-line{color:var(--gold-3);border:1px solid rgba(230,207,156,.55);background:rgba(4,33,26,.25)}
.btn-ink{min-height:44px;padding:0 16px;font-size:14px;color:var(--jade-800);border:1px solid #c9b88f;background:#fffaf0}
.btn-ink.done{border-color:var(--b-line);color:var(--b);background:var(--b-bg)}
@media (hover:hover){
  .btn-gold:hover{transform:translateY(-1px);box-shadow:0 1px 0 rgba(255,255,255,.5) inset,0 10px 24px -8px rgba(210,178,115,.85)}
  .btn-line:hover{transform:translateY(-1px);border-color:var(--gold-2);background:rgba(230,207,156,.1)}
  .btn-ink:hover{border-color:var(--gold-deep);background:#fff}
}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:30;background:rgba(7,42,34,.92);-webkit-backdrop-filter:saturate(1.3) blur(12px);backdrop-filter:saturate(1.3) blur(12px);border-bottom:1px solid rgba(210,178,115,.28)}
.bar{max-width:var(--wrap);margin:auto;padding:0 var(--gutter);height:var(--header);display:flex;align-items:center;gap:20px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;text-decoration:none;white-space:nowrap;flex:none}
.brand img{width:40px;height:40px;display:block}
.brand-name{font:600 18px/1 var(--serif);letter-spacing:.12em;color:var(--gold-3)}
.brand-sub{font-size:12px;color:var(--on-dark-3);padding-left:12px;border-left:1px solid rgba(210,178,115,.35);letter-spacing:.06em}
.case-nav{margin-left:auto;min-width:0}
.case-nav ol{list-style:none;display:flex;gap:2px}
.case-nav a{position:relative;display:flex;align-items:baseline;gap:7px;min-height:44px;padding:11px 12px 10px;text-decoration:none;font-size:14px;color:var(--on-dark-2);white-space:nowrap;border-radius:6px;transition:color .2s,background-color .2s}
.case-nav a .n{font:14px var(--num);color:var(--on-dark-3)}
.case-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1.5px;background:linear-gradient(90deg,transparent,var(--gold),transparent);transform:scaleX(0);transition:transform .3s var(--ease)}
.case-nav a[aria-current=page]{color:var(--gold-3);font-weight:600}
.case-nav a[aria-current=page] .n{color:var(--gold)}
.case-nav a[aria-current=page]::after{transform:scaleX(1)}
@media (hover:hover){.case-nav a:hover{color:var(--on-dark);background:rgba(255,255,255,.04)}}
.nav-toggle{display:none}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden}
.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--gold-deep),var(--gold-2));transform-origin:0 50%;transform:scaleX(0)}

/* ---------- 首屏：徽标做主视觉，高度克制 ---------- */
.hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid rgba(210,178,115,.3)}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:
    repeating-conic-gradient(from -90deg at 28% 108%,rgba(210,178,115,.07) 0 1.4deg,transparent 1.4deg 7deg),
    radial-gradient(60% 90% at 28% 55%,rgba(42,110,91,.55),transparent 70%);
  -webkit-mask:radial-gradient(70% 120% at 28% 100%,#000 30%,transparent 75%);mask:radial-gradient(70% 120% at 28% 100%,#000 30%,transparent 75%)}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:1px;background:linear-gradient(90deg,transparent,rgba(210,178,115,.35) 20%,rgba(210,178,115,.35) 80%,transparent)}
.hero-inner{max-width:var(--wrap);margin:auto;padding:40px var(--gutter) 46px;display:grid;grid-template-columns:400px minmax(0,1fr);gap:56px;align-items:center}
.emblem{position:relative;width:400px;height:420px;display:grid;place-items:center}
.emblem-arch{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.emblem-arch path{fill:none;stroke:var(--gold);stroke-width:1.2;opacity:.6}
.emblem-arch .d2{stroke-width:.7;opacity:.35}
.emblem-arch .d3{stroke-width:1;opacity:.45}
.emblem picture{display:block}
.emblem-logo{display:block;width:360px;height:auto;aspect-ratio:1;filter:drop-shadow(0 18px 30px rgba(0,0,0,.35))}
.sheen{position:absolute;left:20px;right:20px;top:30px;aspect-ratio:1;border-radius:50%;overflow:hidden;pointer-events:none;opacity:0}
.sheen::before{content:"";position:absolute;inset:-20%;background:linear-gradient(105deg,transparent 40%,rgba(255,240,205,.32) 50%,transparent 60%);transform:translateX(-80%)}
.hero-copy{max-width:600px}
.kicker{display:flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.24em;color:var(--gold)}
.kicker-line{width:36px;height:1px;background:var(--gold);transform-origin:0 50%}
.hero-copy h2{font:600 clamp(25px,3.1vw,38px)/1.4 var(--serif);letter-spacing:.04em;color:var(--ivory);margin:14px 0 14px;text-wrap:balance}
.hero-note{font-size:15px;line-height:1.9;color:var(--on-dark-2);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.legend{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin-top:22px;font-size:13px}
.legend-note{color:var(--on-dark-3)}
.who-chip{display:inline-flex;align-items:center;gap:6px;min-height:26px;padding:0 10px 0 8px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.04em}
.who-chip::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}
.who-chip.a{color:var(--a);background:var(--a-bg)}
.who-chip.b{color:var(--b);background:var(--b-bg)}

/* 首次进入：金线描一次、徽标浮现、一道光泽扫过；只播放一次 */
.intro .emblem-arch .draw{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.5s var(--ease) .15s forwards}
.intro .emblem-arch .d2{animation-delay:.35s}
.intro .emblem-arch .d3{animation-delay:.6s;animation-duration:1s}
.intro .emblem-logo{animation:rise .9s var(--ease) both}
.intro .sheen{animation:fade 1.6s ease .9s both}
.intro .sheen::before{animation:sweep 1.6s var(--ease) .9s both}
.intro .kicker-line{animation:grow .8s var(--ease) .3s both}
.intro .hero-copy>*{animation:rise .7s var(--ease) both}
.intro .hero-copy>:nth-child(2){animation-delay:.08s}.intro .hero-copy>:nth-child(3){animation-delay:.16s}.intro .hero-copy>:nth-child(4){animation-delay:.24s}.intro .hero-copy>:nth-child(5){animation-delay:.32s}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes fade{0%,100%{opacity:0}20%,70%{opacity:1}}
@keyframes sweep{to{transform:translateX(80%)}}
@keyframes grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* ---------- 案例布局：正文 + 右侧阅读位置 ---------- */
main{max-width:var(--wrap);margin:auto;padding:0 var(--gutter)}
.case-layout{display:grid;grid-template-columns:minmax(0,var(--read)) 220px;gap:64px;justify-content:center}
main.leaving .case{opacity:0;transform:translateY(6px);transition:opacity .16s ease,transform .16s ease}
main.entering .case{animation:rise .45s var(--ease) both}
main.entering .rail-inner{animation:fadein .45s ease both}
@keyframes fadein{from{opacity:0}}

.case-head{padding:48px 0 4px;text-align:center}
.eyebrow{display:inline-flex;align-items:baseline;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--gold)}
.eyebrow-n{font:28px/1 var(--num);color:var(--gold-2);letter-spacing:0}
.eyebrow-of{font:14px var(--num);color:var(--on-dark-3);letter-spacing:0}
.eyebrow-l{padding-left:12px;margin-left:4px;border-left:1px solid rgba(210,178,115,.4)}
.case-head h1{font:600 clamp(24px,3vw,34px)/1.45 var(--serif);letter-spacing:.03em;color:var(--ivory);margin:14px auto 0;max-width:22em;text-wrap:balance}
.case-head h1:focus{outline:none}
.meta{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:6px 0;margin-top:14px;font-size:13px;color:var(--on-dark-3)}
.meta li+li::before{content:"◆";font-size:7px;color:var(--gold);margin:0 12px;vertical-align:2px}

.block{padding-top:40px}
.sec-title{display:flex;align-items:center;gap:14px;font:600 20px/1.5 var(--serif);letter-spacing:.06em;color:var(--ivory);margin-bottom:18px}
.sec-title::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,rgba(210,178,115,.55),transparent)}
.sec-title:focus{outline:none}
/* 罗马数字放在菱形框里 */
.sec-n{position:relative;display:inline-grid;place-items:center;width:32px;height:32px;flex:none;font:500 13px/1 var(--num);color:var(--gold-2)}
.sec-n::before{content:"";position:absolute;inset:5px;border:1px solid currentColor;transform:rotate(45deg);opacity:.75}
.sec-note{font-size:13px;color:var(--muted);line-height:1.8}

/* ---------- I 原视频 ---------- */
.player{margin:0}
.frame{position:relative;padding:10px;border:1px solid rgba(210,178,115,.45);border-radius:14px;background:linear-gradient(180deg,rgba(4,33,26,.6),rgba(4,33,26,.3))}
.frame::before,.frame::after{content:"";position:absolute;width:22px;height:22px;border:solid var(--gold);pointer-events:none}
.frame::before{top:-4px;left:-4px;border-width:2px 0 0 2px;border-top-left-radius:6px}
.frame::after{bottom:-4px;right:-4px;border-width:0 2px 2px 0;border-bottom-right-radius:6px}
.player video{display:block;width:100%;object-fit:contain;background:#020f0c;border-radius:8px}
.player.is-landscape video{aspect-ratio:16/9}
.player.is-portrait .frame{width:fit-content;max-width:100%;margin:0 auto}
.player.is-portrait video{aspect-ratio:9/16;width:auto;height:min(72vh,620px);max-width:100%}
.player figcaption{font-size:12.5px;color:var(--on-dark-3);margin-top:12px;text-align:center}

/* ---------- II 我们的逐字稿：暖象牙阅读卡 ---------- */
.paper{position:relative;color:var(--ink);background:var(--ivory);border-radius:28px 28px 14px 14px;padding:34px clamp(18px,4.5vw,48px) 30px;box-shadow:0 30px 60px -30px rgba(0,0,0,.55),0 0 0 1px rgba(210,178,115,.5)}
.paper::before{content:"";position:absolute;left:50%;top:-1px;width:120px;height:16px;transform:translateX(-50%);
  background:radial-gradient(circle at 50% 0,var(--gold) 0 3px,transparent 3.5px),repeating-conic-gradient(from 90deg at 50% 0,rgba(138,106,44,.55) 0 2deg,transparent 2deg 15deg);
  -webkit-mask:radial-gradient(circle at 50% 0,#000 15px,transparent 16px);mask:radial-gradient(circle at 50% 0,#000 15px,transparent 16px)}
.paper::after{content:"";position:absolute;inset:7px;border:1px solid rgba(201,154,75,.35);border-radius:22px 22px 9px 9px;pointer-events:none}
.paper .sec-title{color:var(--jade-800)}
.paper .sec-title::after{background:linear-gradient(90deg,rgba(138,106,44,.5),transparent)}
.paper .sec-n{color:var(--gold-deep)}
.script-bar{display:flex;align-items:center;justify-content:space-between;gap:12px 20px;flex-wrap:wrap}
.script-bar .sec-note{color:var(--muted)}
.sep{margin:0 8px;color:var(--gold-deep)}
.actions{display:flex;gap:8px}
.legend-inline{margin-top:14px;padding-bottom:6px}
.legend-inline .legend-note{color:var(--muted)}
.copy-status:empty{display:none}
.copy-status{font-size:13px;color:var(--gold-ink);margin-top:10px}
.copy-fallback{width:100%;min-height:160px;margin-top:10px;font:14px/1.7 var(--sans);padding:12px;border:1px solid var(--ivory-3);border-radius:8px;background:#fff;color:var(--ink)}

.beat{padding:26px 0 6px;border-top:1px solid var(--ivory-3);margin-top:20px}
.beat:first-child{margin-top:16px}
.beat-title{display:flex;align-items:baseline;gap:12px;font:600 16px/1.6 var(--serif);color:var(--jade-700);letter-spacing:.03em;margin-bottom:12px}
.beat-n{font:400 22px/1 var(--num);color:var(--gold-deep);flex:none}
.line{position:relative;margin:0 0 12px;padding:8px 0 8px 16px;border-left:3px solid var(--a-line);border-radius:2px}
.line.b{border-left-color:var(--b-line)}
.line-head{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin-bottom:2px}
.who{display:inline-flex;align-items:center;min-height:24px;padding:0 9px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--a);background:var(--a-bg)}
.line.b .who{color:var(--b);background:var(--b-bg)}
.say{display:block;font-size:17.5px;line-height:1.95;color:var(--ink);letter-spacing:.01em}
.cue{display:inline-flex;align-items:center;gap:5px;font-size:13px;line-height:1.5;color:var(--gold-ink);padding:2px 9px 2px 7px;border-radius:6px;background:#f3ead4;border:1px dashed rgba(138,106,44,.45)}
.cue::before{content:"";width:6px;height:6px;transform:rotate(45deg);background:var(--gold-deep);flex:none}
.cue-key{margin:0 6px 0 0;vertical-align:1px}

/* ---------- 折叠：III 完整原稿 / 出处 ---------- */
.fold{margin-top:28px;border-radius:14px;color:var(--ink);background:var(--ivory-2);box-shadow:0 0 0 1px rgba(210,178,115,.45)}
.fold>summary{display:flex;align-items:center;gap:12px;min-height:60px;padding:8px 18px 8px 16px;cursor:pointer;list-style:none;border-radius:14px;transition:background-color .2s}
.fold>summary::-webkit-details-marker{display:none}
.fold-title{display:flex;align-items:center;gap:12px;font:600 16.5px/1.5 var(--serif);color:var(--jade-800)}
.fold-title .sec-n{color:var(--gold-deep)}
.fold-meta{margin-left:auto;font-size:12.5px;color:var(--muted);white-space:nowrap}
.fold-icon{position:relative;flex:none;width:36px;height:36px;border-radius:50%;border:1px solid #cdb787;background:#fffaf0;transition:transform .3s var(--ease),background-color .2s}
.fold-icon::before,.fold-icon::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:1.5px;margin:-.75px 0 0 -6px;background:var(--jade-700);transition:transform .3s var(--ease)}
.fold-icon::after{transform:rotate(90deg)}
.fold[open]:not(.closing) .fold-icon{transform:rotate(180deg);background:var(--b-bg)}
.fold[open]:not(.closing) .fold-icon::after{transform:rotate(0)}
.fold>summary:active .fold-icon{transform:scale(.92)}
@media (hover:hover){.fold>summary:hover{background:rgba(255,255,255,.45)}}
.fold .fold-open{display:none}.fold[open]:not(.closing) .fold-open{display:inline}.fold[open]:not(.closing) .fold-closed{display:none}
.fold-body{padding:0 18px 20px}
.source-fold .fold-body>.sec-note{padding:2px 0 12px;border-top:1px solid var(--ivory-3);padding-top:14px}
.source{display:grid;gap:4px}
.src-row{display:grid;grid-template-columns:62px 1fr;gap:12px;align-items:start;padding:6px 0;border-bottom:1px dotted #dccca6}
.src-row:last-child{border-bottom:0}
.time{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:56px;font:14px var(--num);color:var(--b);border-radius:8px;background:rgba(216,235,226,.6);transition:background-color .2s,transform .15s}
.time:active{transform:scale(.95)}
@media (hover:hover){.time:hover{background:var(--b-bg)}}
.src-text{font-size:15px;line-height:1.9;color:var(--ink-2);padding-top:8px}
.seg.gap::after{content:" "}

.refs{margin-top:16px;background:rgba(245,236,217,.92)}
.refs>summary{min-height:52px;font-size:14.5px;color:var(--jade-800);font-weight:600}
.refs>summary>span:first-child{margin-right:auto}
.refs .fold-icon{width:30px;height:30px}
.refs ul{list-style:none;font-size:13.5px;line-height:1.8;color:var(--ink-2);border-top:1px solid var(--ivory-3);padding-top:10px}
.refs li{padding:4px 0}
.refs a{display:inline-flex;align-items:center;min-height:44px;color:var(--b)}

/* ---------- 下一条 ---------- */
.pager{margin:36px 0 64px}
.pager a{position:relative;display:flex;align-items:center;gap:16px;min-height:76px;padding:14px 22px;border-radius:14px;text-decoration:none;color:var(--on-dark);border:1px solid rgba(210,178,115,.45);background:linear-gradient(110deg,rgba(24,89,74,.6),rgba(7,42,34,.4));overflow:hidden;transition:border-color .2s,transform .18s var(--ease)}
.pager small{font-size:12.5px;letter-spacing:.2em;color:var(--gold)}
.pager-t{display:flex;align-items:baseline;gap:10px;font:600 17px/1.5 var(--serif);color:var(--ivory)}
.pager-t b{font:400 22px/1 var(--num);color:var(--gold-2)}
.pager-arrow{margin-left:auto;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid rgba(210,178,115,.6);color:var(--gold-2);transition:transform .25s var(--ease),background-color .2s}
.pager a:active{transform:scale(.99)}
@media (hover:hover){.pager a:hover{border-color:var(--gold-2)}.pager a:hover .pager-arrow{transform:translateX(4px);background:rgba(210,178,115,.15)}}

/* ---------- 右侧阅读位置 ---------- */
.rail{padding-top:56px}
.rail-inner{position:sticky;top:calc(var(--header) + 28px);max-height:calc(100vh - var(--header) - 56px);overflow:auto;padding:20px 0 20px 18px;border-left:1px solid rgba(210,178,115,.3)}
.rail-case{display:flex;align-items:baseline;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--on-dark-3);margin-bottom:12px}
.rail-case b{font:400 26px/1 var(--num);color:var(--gold-2);letter-spacing:0}
.rail-list,.rail-beats{list-style:none}
.rail button{position:relative;display:flex;align-items:baseline;gap:8px;width:100%;min-height:40px;padding:8px 6px 8px 0;text-align:left;font-size:14px;line-height:1.45;color:var(--on-dark-2);transition:color .2s}
.rail button::before{content:"";position:absolute;left:-23px;top:50%;width:9px;height:9px;margin-top:-4.5px;transform:rotate(45deg) scale(.4);background:var(--gold);opacity:0;transition:opacity .25s,transform .3s var(--ease)}
.rail button[aria-current]{color:var(--gold-3)}
.rail button[aria-current=location]::before{opacity:1;transform:rotate(45deg) scale(1)}
.rail-beats{margin:2px 0 6px;padding-left:4px}
.rail-beats button{font-size:13px;min-height:36px;padding:5px 6px 5px 0;color:var(--on-dark-3)}
.rail-beats .n{font:12px var(--num);color:var(--on-dark-3);flex:none}
.rail-beats .l{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-beats button[aria-current]{color:var(--gold-3)}
.rail-beats button[aria-current] .n{color:var(--gold)}
@media (hover:hover){.rail button:hover{color:var(--on-dark)}}

/* ---------- 页脚、提示条 ---------- */
.site-footer{text-align:center;padding:32px var(--gutter) calc(40px + env(safe-area-inset-bottom));font-size:12.5px;color:var(--on-dark-3);border-top:1px solid rgba(210,178,115,.22);background:var(--jade-950)}
.footer-fan{display:block;width:56px;height:28px;margin:0 auto 12px;border-radius:56px 56px 0 0;opacity:.7;
  background:repeating-conic-gradient(from -90deg at 50% 100%,var(--gold) 0 2deg,transparent 2deg 20deg);-webkit-mask:radial-gradient(circle at 50% 100%,transparent 6px,#000 7px);mask:radial-gradient(circle at 50% 100%,transparent 6px,#000 7px)}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom));z-index:50;display:flex;align-items:center;gap:14px;max-width:calc(100vw - 32px);padding:10px 12px 10px 18px;border-radius:999px;background:var(--jade-950);color:var(--ivory);font-size:14px;box-shadow:0 12px 30px -10px rgba(0,0,0,.6),0 0 0 1px rgba(210,178,115,.5);
  opacity:0;pointer-events:none;transform:translate(-50%,12px);transition:opacity .2s,transform .25s var(--ease)}
.toast.show{opacity:1;pointer-events:auto;transform:translate(-50%,0)}
.toast button{min-height:44px;padding:0 14px;border-radius:999px;color:var(--jade-900);background:var(--gold-2);font-weight:600;white-space:nowrap}
.print-only{display:none}

/* ---------- 中屏：右侧目录收起，案例导航变为下拉 ---------- */
@media (max-width:1100px){
  .case-layout{grid-template-columns:minmax(0,var(--read))}
  .rail{display:none}
}
@media (max-width:1020px){
  .brand-sub{display:none}
  .nav-toggle{display:inline-flex;align-items:center;gap:10px;margin-left:auto;min-height:44px;min-width:44px;padding:4px 12px 4px 14px;border-radius:10px;border:1px solid rgba(210,178,115,.45);background:rgba(4,33,26,.4);color:var(--on-dark);text-align:left;transition:background-color .2s,transform .15s}
  .nav-toggle:active{transform:scale(.97)}
  .nav-toggle svg{flex:none;color:var(--gold);transition:transform .25s var(--ease)}
  .nav-toggle[aria-expanded=true] svg{transform:rotate(180deg)}
  .nt-text{display:grid;line-height:1.3;min-width:0}
  .nt-case{display:flex;gap:6px;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .nt-case b{font:400 14px var(--num);color:var(--gold-2)}
  .nt-where{font-size:11.5px;color:var(--gold);letter-spacing:.06em}
  .case-nav{position:absolute;top:calc(100% + 6px);right:var(--gutter);width:min(320px,calc(100vw - 2 * var(--gutter)));padding:8px;border-radius:14px;background:var(--jade-850);box-shadow:0 24px 40px -16px rgba(0,0,0,.7),0 0 0 1px rgba(210,178,115,.45);
    visibility:hidden;opacity:0;transform:translateY(-6px);transition:opacity .2s,transform .2s var(--ease),visibility 0s .2s}
  .case-nav.open{visibility:visible;opacity:1;transform:none;transition:opacity .2s,transform .25s var(--ease)}
  .case-nav ol{flex-direction:column}
  .case-nav a{min-height:48px;padding:12px 14px;font-size:15px}
  .case-nav a::after{left:14px;right:auto;width:40px;bottom:6px;background:var(--gold)}
  .case-nav a[aria-current=page]{background:rgba(210,178,115,.1)}
}
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:6px;justify-items:center;text-align:center;padding:22px var(--gutter) 30px}
  .emblem{width:236px;height:248px}
  .emblem-logo{width:212px}
  .sheen{left:12px;right:12px;top:18px}
  .hero::before{background:repeating-conic-gradient(from -90deg at 50% 62%,rgba(210,178,115,.07) 0 1.4deg,transparent 1.4deg 7deg),radial-gradient(70% 50% at 50% 30%,rgba(42,110,91,.55),transparent 70%);
    -webkit-mask:radial-gradient(80% 60% at 50% 35%,#000 30%,transparent 75%);mask:radial-gradient(80% 60% at 50% 35%,#000 30%,transparent 75%)}
  .kicker{justify-content:center}
  .hero-copy h2{font-size:clamp(21px,5.6vw,28px);margin:10px 0}
  .hero-note{font-size:14px;line-height:1.8;margin:auto}
  .hero-cta{justify-content:center;margin-top:18px}
  .legend{justify-content:center;margin-top:16px}
}
@media (max-width:520px){
  :root{--header:58px}
  .brand img{width:36px;height:36px}
  .brand-name{font-size:16px;letter-spacing:.08em}
  .hero-cta{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:10px}
  .btn{padding:0 12px}
  .hero-note br{display:none}
  .legend .legend-note{flex-basis:100%}
  .case-head{padding-top:34px}
  .eyebrow-n{font-size:24px}
  .block{padding-top:30px}
  .frame{padding:6px;border-radius:12px}
  .player.is-portrait video{height:min(68vh,560px)}
  .paper{border-radius:22px 22px 12px 12px;padding:28px 16px 22px}
  .paper::after{inset:5px;border-radius:18px 18px 8px 8px}
  .script-bar{align-items:flex-start}
  .actions{width:100%}.actions .btn{flex:1}
  .say{font-size:17px;line-height:1.9}
  .line{padding-left:12px}
  .fold>summary{padding:8px 12px;gap:8px}
  .fold-meta{display:none}
  .fold-body{padding:0 12px 16px}
  .src-row{grid-template-columns:56px 1fr;gap:8px}
  .pager a{padding:12px 14px;gap:12px}
}
@media (max-width:370px){
  .brand-name{font-size:15px;letter-spacing:.04em}
  .brand{gap:8px}
  .nav-toggle{padding:4px 8px 4px 10px;gap:6px}
  .nt-case{max-width:150px}
}

/* ---------- 减弱动画：关闭位移与描线，只保留状态变化 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .intro .emblem-arch .draw{stroke-dashoffset:0}
  .btn:active,.btn:hover,.pager a:hover .pager-arrow,.time:active,.nav-toggle:active{transform:none!important}
}

/* ---------- 打印：只打印我们的逐字稿 ---------- */
@media print{
  @page{margin:16mm 14mm}
  html,body{background:#fff!important;color:#111}
  .site-header,.hero,main,.site-footer,.toast,.skip-link{display:none!important}
  .print-only{display:block;color:#111;font:12.5pt/1.8 var(--sans)}
  .print-only h1{font:600 18pt/1.4 var(--serif);margin:0 0 4pt}
  .print-only .p-meta{color:#555;font-size:10pt;margin-bottom:8pt}
  .print-only .beat{break-inside:avoid;border-top:.5pt solid #ccc;padding-top:10pt;margin-top:12pt}
  .print-only .beat-title{font-size:10.5pt;color:#333;margin-bottom:4pt;display:block}
  .print-only .beat-n{font-size:10.5pt;color:#333;margin-right:6pt}
  .print-only .line{display:block;margin:3pt 0;padding:0 0 0 6pt;border-left:2pt solid #c99a4b;break-inside:avoid}
  .print-only .line.b{border-left-color:#2f7e68}
  .print-only .line-head{display:inline;margin:0}
  .print-only .line-head::after{content:"："}
  .print-only .who{display:inline;padding:0;background:none!important;font-size:10pt;font-weight:700;color:#111!important}
  .print-only .cue{display:inline;background:none;border:0;color:#6b5530;padding:0;margin:0 2pt 0 0;font-size:9.5pt}
  .print-only .cue::before{content:"〔";width:auto;height:auto;transform:none;background:none}.print-only .cue::after{content:"〕"}
  .print-only .say{display:inline;font-size:12.5pt;line-height:1.8}
}