/* ==========================================================================
   standalone.css — 独立页面(文章详情 / 播放器)的编辑式外壳
   --------------------------------------------------------------------------
   与 index.html 的 SPA 共用同一套设计语言:Instrument Serif + Space Grotesk
   + 等宽元数据、发丝线、频率标尺、透明页眉与滚落式页脚。
   本文件在页面内联样式之后加载,负责覆盖旧独立页的 Apple-blue / 金色影院皮肤。
   ========================================================================== */

/* ── 1. 设计 token(与 SPA 同源;独立页需要更强的正文对比度) ── */
:root{
  --font-serif:'Instrument Serif',Georgia,'Liberation Serif','Times New Roman','Songti SC','Noto Serif CJK SC','SimSun',serif;
  --font-sans:system-ui,'Songti SC','Noto Serif CJK SC','SimSun',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --font-mono:ui-monospace,'SF Mono','Cascadia Code',Consolas,'Liberation Mono','Noto Sans Mono',Menlo,Monaco,'Courier New',monospace;
  --font-grot:'Space Grotesk',system-ui,'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',-apple-system,'Segoe UI',Roboto,sans-serif;

  --measure:1100px;
  --col-pad:max(24px,calc((100% - var(--measure)) / 2));
  --head-pad:48px;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;
  --r-sharp:0;--r-xs:2px;--r-sm:6px;--r-md:12px;--r-lg:20px;--r-pill:999px;

  --bg-main:#f8f9fa;
  --bg-card:#ffffff;
  --card-bg:#ffffff;
  --image-slot-bg:#f3f4f6;
  --img-slot:#f3f4f6;
  --bg-nav:rgba(255,255,255,.8);
  --surface:rgba(255,255,255,.72);
  --surface-hover:rgba(255,255,255,.92);
  --border:rgba(0,0,0,.08);
  --border-hair:rgba(0,0,0,.055);
  --border-hover:rgba(0,0,0,.15);
  --text-main:#1f1f1f;
  --text-muted:#5f6368;
  --text-dim:#80868b;
  --prose:#34373d;
  --accent:#385cfa;
  --accent-light:#eff6ff;
  --accent-glow:rgba(79,110,247,.08);
  --accent-text:#a3bdfc;
  --accent2:#d4a24c;
  --accent2-glow:rgba(212,162,76,.08);
  --accent2-text:#d4a24c;
  --accent3:#3ca09a;
  --accent3-glow:rgba(60,160,154,.08);
  --accent3-text:#3ca09a;
  --pal-purple:#68527d;
  --pal-cyan:#2e8f89;
  --pal-mint:#509568;
  --pal-amber:#b98a33;
  --pal-red:#b33a3a;
  --code-bg:#111216;
  --code-text:#d9dde5;
  --ok:#3ca09a;
  --warn:#b98a33;
  --hint-bg:rgba(248,249,250,.9);
  --hint-border:rgba(31,31,31,.13);
  --hint-shadow:0 16px 34px rgba(15,23,42,.13);
  --badge-blue:var(--accent-glow);
  --badge-green:var(--accent3-glow);
  --badge-orange:var(--accent2-glow);
  --accent-soft:rgba(56,92,250,.14);
  --shadow:none;
}
:root.dark{
  --bg-main:#0d0d0f;
  --bg-card:#131a26;
  --card-bg:#131a26;
  --image-slot-bg:#15161a;
  --img-slot:#15161a;
  --bg-nav:rgba(19,26,38,.8);
  --surface:rgba(255,255,255,.04);
  --surface-hover:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.10);
  --border-hair:rgba(255,255,255,.07);
  --border-hover:rgba(255,255,255,.17);
  --text-main:#e8eaed;
  --text-muted:#9aa0a6;
  --text-dim:#6e7681;
  --prose:#c9ced6;
  --accent:#8fa8f1;
  --accent-light:#172554;
  --accent-glow:rgba(123,154,247,.1);
  --accent-text:#5978c2;
  --accent2:#d4a24c;
  --accent2-glow:rgba(212,162,76,.1);
  --accent2-text:#e0b866;
  --accent3:#3ca09a;
  --accent3-glow:rgba(60,160,154,.1);
  --accent3-text:#5cc5bf;
  --pal-purple:#b3a8d9;
  --pal-cyan:#72c9c3;
  --pal-mint:#86c9a5;
  --pal-amber:#e0b866;
  --pal-red:#d98a8a;
  --code-bg:#08090b;
  --code-text:#d9dde5;
  --ok:#5cc5bf;
  --warn:#e0b866;
  --hint-bg:rgba(19,26,38,.92);
  --hint-border:rgba(232,234,237,.16);
  --hint-shadow:0 16px 34px rgba(0,0,0,.34);
  --badge-blue:var(--accent-glow);
  --badge-green:var(--accent3-glow);
  --badge-orange:var(--accent2-glow);
  --accent-soft:rgba(143,168,241,.18);
}

/* ── 2. 基础重置 ── */
*,*::before,*::after{box-sizing:border-box;transition:none}
html{scroll-behavior:auto;overflow-x:clip;max-width:100%;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  background:var(--bg-main);
  color:var(--text-main);
  line-height:1.625;
  -webkit-font-smoothing:antialiased;
  display:flex;
  flex-direction:column;
  min-height:100vh;
  overflow-x:clip;
  max-width:100%;
  overflow-wrap:break-word;
  transition:background-color .35s ease,color .35s ease;
}
a,button{touch-action:manipulation}
::selection{background:var(--text-main);color:var(--bg-main)}
a{color:inherit}
img{max-width:100%}
button{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--r-xs)}
html.i18n-pending{visibility:hidden}

.skip-link{
  position:fixed;top:10px;left:10px;z-index:999;
  transform:translateY(-160%);
  padding:10px 14px;
  background:var(--text-main);color:var(--bg-main);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  text-decoration:none;border-radius:var(--r-xs);
  transition:transform .2s ease;
}
.skip-link:focus{transform:translateY(0)}

/* 页面进入动画:只在 JS 就绪后触发,避免 i18n 隐藏期提前跑完 */
@keyframes standaloneRise{from{opacity:0;transform:translateY(12px);filter:blur(4px)}to{opacity:1;transform:none;filter:blur(0)}}
@keyframes standaloneFadeIn{to{opacity:1}}
body.standalone-ready .hero-title{animation:standaloneRise .9s cubic-bezier(.22,1,.36,1) .04s both}
body.standalone-ready .hero-subtitle{animation:standaloneRise .9s cubic-bezier(.22,1,.36,1) .12s both}
body.standalone-ready .project-badge-group{animation:standaloneRise .8s cubic-bezier(.22,1,.36,1) both}
body.standalone-ready .hero-media-frame{animation:standaloneRise 1.1s cubic-bezier(.22,1,.36,1) .18s both}
body.standalone-ready .programme-head .meta-title{animation:standaloneRise .9s cubic-bezier(.22,1,.36,1) .12s both}
body.standalone-ready .stage-container{animation:standaloneRise 1s cubic-bezier(.22,1,.36,1) .2s both}

/* 滚动揭示:默认可见,JS 加上 .is-reveal 后才隐藏 */
.is-reveal{opacity:0;filter:blur(4px);transform:translateY(10px);transition:opacity .7s cubic-bezier(.22,1,.36,1),filter .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.is-reveal.is-in{opacity:1;filter:blur(0);transform:none}

/* ── 3. 页眉:与 SPA masthead 同一副骨架,但随页面滚走 ── */
/* JS 替换旧的 <header> 之前,先让它脱离文档流:否则旧导航的 78px 高度会先占位,
   替换成 absolute 新页眉时整页会向上跳一下。若 JS 失败,旧导航仍可正常使用。 */
body.article-page > header:not(.masthead),
body.player-page > header:not(.masthead){
  position:absolute;top:0;left:0;right:0;z-index:50;
  width:100%;background:transparent;border:0;
  backdrop-filter:none;-webkit-backdrop-filter:none;
}
.masthead{
  position:absolute;top:0;left:0;right:0;z-index:50;
  display:flex;justify-content:flex-end;align-items:center;
  padding:22px var(--head-pad);
  background:transparent;border:0;
  backdrop-filter:none;-webkit-backdrop-filter:none;
  font-family:var(--font-grot);font-size:14px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--text-main);
  opacity:0;animation:standaloneFadeIn 1s cubic-bezier(.22,1,.36,1) .15s forwards;
}
.masthead__logo{
  position:absolute;top:27px;left:var(--head-pad);
  width:26px;height:26px;object-fit:contain;z-index:51;pointer-events:none;
  opacity:0;animation:standaloneFadeIn 1s ease .15s forwards;
}
.masthead__nav{justify-self:end;display:flex;align-items:center;gap:38px}
.masthead__nav a{color:inherit;text-decoration:none;position:relative;padding:4px 0;transition:opacity .4s cubic-bezier(.22,1,.36,1)}
.masthead__nav a::after{content:'';position:absolute;left:0;right:100%;bottom:0;height:1px;background:currentColor;transition:right .5s cubic-bezier(.22,1,.36,1)}
.masthead__nav a:hover::after,.masthead__nav a.active::after{right:0}
.masthead__nav a:not(:hover){opacity:.68}
.masthead__nav a.active{opacity:1}
.masthead__nav-label{display:inline-block}
.masthead__ctls{display:flex;align-items:center;gap:6px}
.masthead__lang,.masthead__theme{
  background:none;border:0;color:var(--text-dim);cursor:pointer;
  font-size:11px;letter-spacing:.1em;padding:4px 6px;line-height:1;
  font-family:var(--font-grot);min-width:36px;min-height:36px;
  transition:color .3s;
}
.masthead__theme{color:var(--text-main);opacity:.85;font-size:14px}
.masthead__lang:hover,.masthead__theme:hover{color:var(--text-main);opacity:1}

/* 导航说明:磨砂仪器窗 */
.masthead__hint{
  position:absolute;top:calc(100% + 17px);left:50%;z-index:2;
  display:flex;flex-direction:column;gap:4px;
  width:max-content;max-width:230px;padding:10px 14px 10px 15px;
  color:var(--text-main);background:var(--hint-bg);
  border:1px solid var(--hint-border);border-left:2px solid var(--accent);
  border-radius:0 var(--r-md) var(--r-md) var(--r-md);
  box-shadow:var(--hint-shadow);
  backdrop-filter:blur(16px) saturate(125%);-webkit-backdrop-filter:blur(16px) saturate(125%);
  font-family:var(--font-grot);font-size:11px;font-weight:400;
  letter-spacing:.03em;line-height:1.45;text-align:left;text-transform:none;
  text-wrap:pretty;white-space:normal;
  opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%,-5px);
  transition:opacity .22s ease,visibility .22s ease,transform .22s ease;
}
.masthead__hint::before{content:'';position:absolute;top:-1px;left:-4px;width:6px;height:6px;border:1px solid var(--accent);border-radius:var(--r-pill);background:var(--hint-bg);opacity:.95}
.masthead__hint::after{content:'';position:absolute;top:-1px;right:13px;width:24px;height:1px;background:var(--accent);opacity:.55}
.masthead__hint-kicker{font-family:var(--font-mono);font-size:8px;letter-spacing:.12em;color:var(--accent);line-height:1.2}
.masthead__link:hover .masthead__hint,
.masthead__link:focus-visible .masthead__hint{opacity:1;visibility:visible;transform:translate(-50%,0)}

/* 终端入口:一截带刻度的频率轴 */
.masthead__link--out{position:relative;display:inline-flex;align-items:center;gap:6px}
.masthead__link--out::before{
  content:'';position:absolute;left:-5px;right:-5px;bottom:0;height:5px;pointer-events:none;
  background-image:linear-gradient(currentColor,currentColor),linear-gradient(currentColor,currentColor);
  background-size:100% 1px,1px 5px;background-position:left bottom,left bottom;background-repeat:no-repeat;
  color:var(--text-dim);opacity:.4;
}
.masthead__term-axis{
  position:absolute;left:-5px;right:-5px;bottom:0;height:5px;pointer-events:none;
  background-image:linear-gradient(var(--accent),var(--accent)),linear-gradient(var(--accent),var(--accent));
  background-size:100% 1px,1px 5px;background-position:left bottom,left bottom;background-repeat:no-repeat;
  opacity:0;animation:standaloneTermAxis 9s ease-in-out infinite;
}
@keyframes standaloneTermAxis{0%,48%,84%,100%{opacity:0}60%,72%{opacity:1}}
.masthead__link--out:hover .masthead__term-axis,
.masthead__link--out:focus-visible .masthead__term-axis{animation:none;opacity:1}
.masthead__term-cue{font-family:var(--font-mono);font-size:11px;line-height:1;color:var(--accent);letter-spacing:0}
.masthead__term-cursor{animation:standaloneCursor 1.15s steps(1,end) infinite}
@keyframes standaloneCursor{0%,45%{opacity:1}46%,100%{opacity:0}}
.masthead__nav a:last-of-type .masthead__hint{left:auto;right:0;transform:translateY(-5px)}
.masthead__nav a:last-of-type:hover .masthead__hint,
.masthead__nav a:last-of-type:focus-visible .masthead__hint{transform:translateY(0)}

/* 频率上标 */
.freq-power{display:inline-block;white-space:nowrap}
.freq-power sup{display:inline-block;font-size:.72em;line-height:1;position:relative;top:-.28em;margin-left:.03em}

/* ── 4. 文章 Hero:大衬线标题 + 细线图版 ── */
.hero-banner{
  position:relative;
  padding:152px 0 0;
  background:transparent;border:0;text-align:left;overflow:visible;
}
.hero-banner::before{
  content:'';position:absolute;inset:0 0 auto;height:70%;
  pointer-events:none;z-index:-1;
  background:radial-gradient(ellipse at 72% 0%,var(--accent-glow),transparent 58%);
}
.hero-container{width:100%;max-width:var(--measure);margin:0 auto;padding:0 24px;position:relative}
.back-link{
  display:inline-flex;align-items:center;gap:9px;
  margin:0 0 44px;padding:6px 0;
  color:var(--text-dim);text-decoration:none;
  font-family:var(--font-mono);font-size:10px;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;
  transition:color .2s ease,gap .2s ease;
}
.back-link svg{width:14px;height:14px;flex-shrink:0}
.back-link:hover{color:var(--accent);gap:13px}
.project-badge-group{
  display:flex;justify-content:flex-start;align-items:center;flex-wrap:wrap;
  gap:0;margin:0 0 22px;
}
.project-badge-group::before{
  content:'CARRIER · PUBLICATION';
  margin-right:14px;padding-right:14px;
  border-right:1px solid var(--border);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  color:var(--accent);white-space:nowrap;
}
.tech-badge{
  padding:0!important;border:0!important;border-radius:0!important;
  background:none!important;box-shadow:none!important;
  font-family:var(--font-mono);font-size:11.5px!important;font-weight:400!important;
  letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)!important;
  line-height:1.7;
}
.tech-badge + .tech-badge::before{content:'/';margin:0 11px;color:var(--border-hover)}
.project-badge-group .tech-badge:first-of-type{color:var(--text-main)!important}
.hero-title{
  font-family:var(--font-serif);font-weight:400;
  font-size:clamp(2.7rem,5.7vw,4.9rem);
  line-height:1.03;letter-spacing:-.02em;
  margin:0 0 24px;max-width:100%;color:var(--text-main);
  text-align:left;text-wrap:pretty;word-break:normal;overflow-wrap:break-word;
}
.hero-subtitle{
  font-family:var(--font-sans);font-size:clamp(.95rem,1.4vw,1.08rem);
  font-weight:400;color:var(--text-muted);
  line-height:1.8;margin:0 0 clamp(40px,6vw,64px);
  max-width:66ch;text-align:left;overflow-wrap:break-word;
}
.hero-media-frame{
  position:relative;max-width:var(--measure);margin:0 auto;
  padding:0;border:1px solid var(--border);border-radius:18px;
  background:var(--surface);box-shadow:none;overflow:hidden;
}
.hero-media-frame::before,
.hero-media-frame::after{display:none}
img.hero-img-placeholder{
  width:100%;height:auto;max-height:78vh;
  object-fit:contain;display:block;
  border:0;border-radius:inherit;background:transparent;
}
div.hero-img-placeholder{
  min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;border:1px dashed var(--border-hover);border-radius:16px;
  background:var(--surface);color:var(--text-dim);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-align:center;
}

/* ── 5. 正文布局 ── */
.detail-main-wrapper{
  width:100%;max-width:var(--measure);
  margin:clamp(56px,8vw,96px) auto 0;
  padding:0 24px;
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:clamp(40px,6vw,72px);align-items:stretch;flex:1;
}
.detail-article,.detail-main-wrapper > main{min-width:0;max-width:100%}
.section-block{margin:0 0 clamp(56px,7vw,80px)}
.detail-main-wrapper .section-title{
  display:block;
  font-family:var(--font-serif);font-size:clamp(1.65rem,2.6vw,2.15rem);
  font-weight:400;line-height:1.15;letter-spacing:-.012em;
  color:var(--text-main);
  margin:0 0 26px;padding:20px 0 0;
  border:0;border-top:1px solid var(--border);
  text-wrap:balance;overflow-wrap:break-word;
}
.detail-main-wrapper > main > .section-block:first-child > .section-title:first-child,
.detail-main-wrapper > main > .section-title:first-child,
.detail-main-wrapper > .section-block:first-child > .section-title:first-child{border-top:0;padding-top:0}
.section-subtitle{
  font-family:var(--font-grot);font-size:1.02rem;font-weight:500;
  line-height:1.5;letter-spacing:.005em;color:var(--text-main);
  margin:44px 0 16px;padding-left:14px;
  border-left:2px solid var(--accent);
  text-wrap:pretty;
}
.paragraph{
  font-size:1.02rem;line-height:1.9;
  color:var(--prose);margin:0 0 22px;
  text-align:left;max-width:70ch;
  text-wrap:pretty;
}
.paragraph strong,.paragraph b{color:var(--text-main);font-weight:600}
.paragraph em{font-style:italic}
.paragraph a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.paragraph code,.callout-box code,.spec-list code,.section-block code{
  font-family:var(--font-mono);font-size:.86em;
  color:var(--text-main);background:var(--surface);
  border:1px solid var(--border-hair);border-radius:var(--r-xs);
  padding:.1em .38em;
  overflow-wrap:anywhere;word-break:break-word;
}
.detail-main-wrapper ul,.detail-main-wrapper ol{margin:0 0 24px;padding-left:1.35em;color:var(--prose);font-size:1.02rem;line-height:1.85}
.detail-main-wrapper li{margin-bottom:8px}
.detail-main-wrapper li::marker{color:var(--accent)}
.detail-main-wrapper blockquote{
  margin:36px 0;padding:4px 0 4px 24px;
  border-left:2px solid var(--accent);
  font-family:var(--font-serif);font-size:clamp(1.35rem,2.5vw,1.75rem);
  line-height:1.35;color:var(--text-main);
}
.detail-main-wrapper hr{border:0;border-top:1px solid var(--border);margin:44px 0}

/* 注释块:没有卡片,只有一条测线 */
.callout-box{
  position:relative;
  margin:34px 0;padding:22px 0 22px 24px;
  border:0;border-left:2px solid var(--accent);
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  border-radius:0;background:transparent;
}
.callout-box::before{
  content:'NOTE';
  position:absolute;top:-7px;left:24px;
  padding:0 8px;background:var(--bg-main);
  font-family:var(--font-mono);font-size:8px;letter-spacing:.2em;
  color:var(--accent);line-height:1.2;
}
.callout-box p{
  margin:0!important;padding:0;border:0!important;background:none!important;
  font-size:.96rem!important;line-height:1.85!important;color:var(--text-muted)!important;
}

/* 代码 */
.code-block{
  margin:30px 0;padding:20px 22px;
  background:var(--code-bg)!important;color:var(--code-text)!important;
  border:1px solid rgba(255,255,255,.08)!important;border-radius:var(--r-xs)!important;
  font-family:var(--font-mono)!important;font-size:12.5px!important;line-height:1.75!important;
  overflow-x:auto!important;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;
  tab-size:2;
}
.code-block code{background:none;border:0;padding:0;color:inherit;font-size:inherit}
.code-header,.code-label{
  display:block;margin:0 0 12px;padding:0 0 10px;
  border-bottom:1px solid rgba(255,255,255,.08);
  font-family:var(--font-mono);font-size:9px;letter-spacing:.16em;
  text-transform:uppercase;color:#8a91a0;
}
.code-block .cm{color:#7b8392!important}
.code-block .kw{color:#8fa8f1!important}
.code-block .st{color:#9ccf9a!important}
.code-block .nm{color:#d4a24c!important}
.code-block .fn{color:#7fc7d9!important}

/* 数据表 */
.premium-table-wrapper,.table-wrap{
  width:100%;max-width:100%;overflow-x:auto;margin:32px 0;
  border:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  border-radius:0;background:transparent;
  -webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;
}
.premium-table,.data-table{
  width:100%;min-width:640px;border-collapse:collapse;text-align:left;
  font-size:.92rem;line-height:1.65;background:transparent;
}
.premium-table th,.data-table th{
  padding:13px 14px;background:transparent!important;
  border:0;border-bottom:1px solid var(--border);
  font-family:var(--font-mono);font-size:9px;font-weight:500;
  letter-spacing:.15em;text-transform:uppercase;color:var(--text-dim)!important;
  white-space:nowrap;
}
.premium-table td,.data-table td{
  padding:14px;background:transparent;border:0;border-bottom:1px solid var(--border-hair);
  color:var(--prose);line-height:1.7;vertical-align:top;
}
.premium-table tr:last-child td,.data-table tr:last-child td{border-bottom:0}
.premium-table tbody tr:hover,.data-table tbody tr:hover{background:var(--surface)}
.premium-table td strong,.data-table td strong{color:var(--text-main);font-weight:600}
.data-table td:first-child{font-family:var(--font-mono);font-size:11px;color:var(--accent);white-space:nowrap}
.data-table .ok{color:var(--ok);font-weight:500}
.data-table .warn{color:var(--warn);font-weight:500}

/* 图版与卡片 */
.architecture-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:28px 0;background:none;border:0}
.arch-card{
  background:var(--bg-main);border:1px solid var(--border);border-radius:0;
  padding:22px;transition:background .2s ease,border-color .2s ease;box-shadow:none;
}
.arch-card:hover{background:var(--surface-hover);border-color:var(--border-hover)}
.arch-card h4{margin:0 0 8px;font-family:var(--font-serif);font-size:1.18rem;font-weight:400;color:var(--text-main);line-height:1.25}
.arch-card p{margin:0;font-size:.85rem;line-height:1.65;color:var(--text-muted)}
.arch-card:hover h4{color:var(--accent)}

.figure-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:30px 0;background:none;border:0}
.figure-card{background:var(--bg-main);border:1px solid var(--border);border-radius:0;overflow:hidden;margin:0}
.figure-card img{width:100%;height:auto;max-height:520px;object-fit:contain;display:block;background:transparent}
.figure-card figcaption{padding:12px 14px;font-family:var(--font-mono);font-size:9px;line-height:1.7;letter-spacing:.04em;color:var(--text-dim);border-top:1px solid var(--border)}
.figure-card figcaption b{color:var(--text-main);font-weight:500}

.highlight-list{display:flex;flex-direction:column;gap:10px;margin:28px 0;background:none;border:0}
.highlight-item{display:flex;gap:20px;padding:22px;background:var(--bg-main);border:1px solid var(--border);border-radius:0}
.hl-icon{flex-shrink:0;width:38px;height:38px;border-radius:var(--r-xs);background:var(--accent-glow);border:1px solid var(--border-hair);display:flex;align-items:center;justify-content:center;color:var(--accent)}
.hl-content h3{margin:0 0 6px;font-family:var(--font-serif);font-size:1.2rem;font-weight:400;color:var(--text-main)}
.hl-content p{margin:0;font-size:.92rem;line-height:1.75;color:var(--text-muted)}

/* 结构图 */
.component-diagram{
  margin:32px 0;padding:26px 24px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xs);
  text-align:center;
}
.diagram-row{display:flex;justify-content:center;align-items:flex-end;gap:24px;flex-wrap:wrap;margin:18px 0}
.diagram-node{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:60px}
.diagram-node .box{
  padding:9px 15px;border:1px solid var(--accent);border-radius:var(--r-xs);
  background:var(--accent-glow);font-family:var(--font-grot);font-weight:500;
  font-size:.8rem;line-height:1.4;color:var(--text-main);
}
.highlight-box{
  margin:28px 0!important;padding:18px 0 18px 20px!important;
  background:transparent!important;border:0!important;
  border-left:2px solid var(--accent)!important;border-radius:0!important;
}
.highlight-box p{margin:0;font-size:.96rem;line-height:1.85;color:var(--prose)}
.detail-main-wrapper img[style*="border-radius"]{border-radius:var(--r-xs)!important}
.diagram-node .arrow-down{border-left-color:var(--text-dim)!important}
.diagram-node .arrow-down::after{border-top-color:var(--text-dim)!important}
.diagram-label{font-family:var(--font-mono);font-size:9px!important;letter-spacing:.04em;color:var(--text-dim)!important;line-height:1.5}
.diagram-arrow{color:var(--accent)!important;font-size:1.2rem!important}
.diagram-caption{font-family:var(--font-mono)!important;font-size:9px!important;letter-spacing:.12em!important;text-transform:uppercase;color:var(--text-dim)!important;margin-top:18px!important}
.stack-diagram{gap:8px;margin:28px 0;background:none;border:0}
.stack-row{display:grid;grid-template-columns:96px minmax(0,1fr);gap:0;align-items:stretch;background:var(--bg-main);border:1px solid var(--border)}
.stack-label{padding:13px 12px;border-right:1px solid var(--border);font-family:var(--font-mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim);display:flex;align-items:center;justify-content:flex-end;text-align:right}
.stack-body{padding:13px 16px;background:transparent;border:0;border-radius:0;font-size:.9rem;line-height:1.7}
.stack-body b{color:var(--accent);font-weight:500}
.frame-diagram{gap:6px;margin:24px 0 6px;background:none;border:0}
.frame-cell{padding:10px 12px;border:1px solid var(--border);border-radius:0;background:var(--bg-main);min-width:78px;text-align:center}
.frame-cell b{display:block;font-family:var(--font-mono);font-size:10px;color:var(--accent);letter-spacing:.03em;margin-bottom:4px;font-weight:500}
.frame-cell span{font-family:var(--font-mono);font-size:8px;color:var(--text-dim);letter-spacing:.02em}

/* 时间线 */
.timeline{position:relative;margin:30px 0;padding-left:26px;border-left:1px solid var(--border)}
.tl-item{position:relative;margin-bottom:22px}
.tl-item::before{left:-31px!important;top:6px!important;width:7px!important;height:7px!important;background:var(--accent)!important;box-shadow:0 0 0 3px var(--accent-glow)!important}
.tl-time{font-family:var(--font-mono);font-size:9px!important;letter-spacing:.12em;color:var(--text-dim)!important;text-transform:uppercase}
.tl-item p{margin:4px 0 0!important;font-size:.94rem!important;line-height:1.75!important;color:var(--text-muted)!important}
.tl-item p b{color:var(--text-main)!important;font-weight:500}

/* 规格列表 */
.spec-list{list-style:none;margin:22px 0;padding:0;display:flex;flex-direction:column;gap:0}
.spec-list li{position:relative;padding:10px 0 10px 18px;border-bottom:1px solid var(--border-hair);font-size:.94rem;line-height:1.75;color:var(--prose)}
.spec-list li:last-child{border-bottom:0}
.spec-list li::before{content:'';position:absolute;left:0;top:1.05em;width:5px;height:1px;background:var(--accent)}
.spec-list li strong{color:var(--text-main);font-weight:600}

/* 图版 / 公式 / 图片组 */
.visual-display-slot{margin:30px 0;padding:0;background:transparent;border:1px solid var(--border);border-radius:var(--r-xs)}
.visual-container{height:auto;min-height:360px;background:var(--surface)!important;border-radius:0;display:flex;flex-direction:column;justify-content:center;align-items:center;color:var(--text-dim);font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;position:relative;overflow:hidden}
.visual-img{width:100%;height:100%;object-fit:contain;position:absolute;inset:0}
.visual-caption{margin:0;padding:12px 14px;border-top:1px solid var(--border);font-family:var(--font-mono);font-size:9px;line-height:1.7;letter-spacing:.04em;color:var(--text-dim);text-align:left}
.math-block{margin:28px 0;padding:18px 0 18px 20px;background:transparent;border:0;border-left:2px solid var(--border-hover);border-radius:0;overflow-x:auto}
.math-block p{margin:0}
.math-block{color:var(--text-main)!important}
.mjx-container,.mjx-container *{color:var(--text-main)!important}
.mjx-container[display="true"],.MathJax_Display{max-width:100%;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}
.img-reference-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:28px 0;background:none;border:0}
.img-ref-card{background:var(--bg-main);border:1px solid var(--border);border-radius:0;padding:12px}
.img-ref-card .img-slot{background:var(--surface);border:1px solid var(--border-hair);border-radius:0;overflow:hidden}
.img-ref-card .img-caption{font-family:var(--font-mono);font-size:9px;line-height:1.7;color:var(--text-dim);padding:10px 2px 0}
.antenna-profile-container{display:flex;flex-direction:column;gap:20px;margin:30px 0;background:none;border:0}
.antenna-profile-card{background:var(--bg-main);border:1px solid var(--border);border-radius:0;padding:24px}
.antenna-profile-card h3{margin:0 0 14px;font-family:var(--font-serif);font-size:1.35rem;font-weight:400;color:var(--text-main);display:flex;align-items:center;gap:8px}
.palette-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border-hair)}
.palette-swatch{width:28px;height:28px;border-radius:var(--r-xs);border:1px solid var(--border)}
.palette-label{font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;color:var(--text-dim)}

/* ── 6. 侧栏:仪表读数,不是卡片 ── */
.detail-sidebar{position:relative;min-width:0}
.sticky-panel{position:static;display:flex;flex-direction:column;gap:0;max-height:none;overflow:visible}
.side-card{background:transparent;border:0;border-top:1px solid var(--border);border-radius:0;padding:24px 0;box-shadow:none}
.side-card:first-child{border-top:0;padding-top:0}
.side-card:last-child{padding-bottom:0}
.side-card-title{
  margin:0 0 15px;padding:0 0 11px;
  border:0;border-bottom:1px solid var(--border);
  font-family:var(--font-mono);font-size:.75rem;font-weight:400;
  line-height:1.5;letter-spacing:.18em;text-transform:uppercase;color:var(--text-muted);
  overflow-wrap:anywhere;
}
.meta-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0;font-size:.9375rem}
.meta-list li{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:baseline;gap:12px;padding:10px 0;border-bottom:1px solid var(--border-hair)}
.meta-list li:last-child{border-bottom:0}
.meta-label{font-family:var(--font-mono);font-size:.75rem;line-height:1.55;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);flex-shrink:0}
.meta-value{font-family:var(--font-grot);font-size:.9375rem;font-weight:400!important;color:var(--text-main)!important;text-align:right;line-height:1.6;overflow-wrap:anywhere}
.tag-cloud{display:flex;flex-wrap:wrap;gap:7px 16px;line-height:1.7}
.mini-badge{display:inline-flex;align-items:center;background:none!important;border:0!important;border-radius:0!important;padding:0!important;font-family:var(--font-mono);font-size:.75rem!important;font-weight:400;letter-spacing:.03em;color:var(--text-muted)!important;opacity:.95;white-space:nowrap}
.mini-badge::before{content:'';width:3px;height:3px;border-radius:50%;background:var(--text-dim);opacity:.4;margin-right:6px;flex-shrink:0}
.action-button-group{display:flex;flex-direction:column;gap:9px;margin:0}
.btn-primary,.btn-secondary{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:13px 14px;border-radius:var(--r-xs);
  font-family:var(--font-mono);font-size:.75rem;font-weight:500;line-height:1.45;
  letter-spacing:.06em;text-transform:uppercase;text-align:center;text-decoration:none;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--text-main)!important;border:1px solid var(--text-main)!important;color:var(--bg-main)!important}
.btn-primary:hover{background:var(--accent)!important;border-color:var(--accent)!important;color:#fff!important}
.btn-secondary{background:transparent!important;border:1px solid var(--border)!important;color:var(--text-main)!important}
.btn-secondary:hover{border-color:var(--text-main)!important;background:var(--surface)!important}

/* ── 7. 页脚:频率标尺 + colophon(SPA 同款) ── */
.footer-dock{position:relative;width:100%;margin-top:clamp(64px,9vw,120px);z-index:2}
.scan-line{position:relative;width:100%;max-width:var(--measure);margin:0 auto 20px;padding:0 24px;z-index:40;user-select:none}
.scan-axis{position:relative;height:1px;background:var(--text-dim);opacity:.28}
.scan-ticks{position:relative;height:0;margin-top:-1px}
.scan-metrics{position:relative;height:73px;margin-bottom:-24px;isolation:isolate}
.scan-tick{position:absolute;top:0;width:1px;background:var(--text-dim);opacity:.35;pointer-events:none}
.scan-tick.major{height:14px;opacity:.5}
.scan-tick.minor{height:7px;opacity:.25}
.scan-tick-label{position:absolute;top:18px;left:50%;transform:translateX(-50%);font-family:var(--font-mono);font-size:9px;color:var(--text-dim);opacity:.45;white-space:nowrap;pointer-events:none}
.scan-ticks .scan-tick-label:nth-child(2){top:18px;bottom:auto;transform:translateX(0)}
.scan-ticks .scan-tick-label:nth-child(23){top:18px;bottom:auto;transform:translateX(-100%)}
.scan-anchor{position:absolute;top:0;display:flex;flex-direction:column;align-items:flex-start;gap:2px;pointer-events:auto;cursor:pointer;text-decoration:none;color:inherit;padding:7px 0 28px;border-radius:var(--r-sm);transition:color .2s;z-index:3;outline-offset:4px}
.scan-anchor:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:var(--r-xs)}
.scan-anchor:hover,.scan-anchor:focus-visible{z-index:20}
.scan-anchor:hover .anchor-label{color:var(--text-main)}
.scan-anchor:hover .anchor-freq{opacity:.8}
.anchor-tick{width:2px;height:22px;background:var(--text-dim);opacity:.55;transition:opacity .2s,background .2s}
.scan-anchor:hover .anchor-tick{opacity:.85;background:var(--accent)}
.anchor-label{font-family:var(--font-grot);font-size:.82rem;font-weight:500;color:var(--text-muted);transition:color .2s;letter-spacing:1px}
.anchor-freq{font-family:var(--font-mono);font-size:9px;color:var(--text-dim);opacity:.5;transition:opacity .2s;white-space:nowrap}
.anchor-meta{display:flex;align-items:baseline;gap:8px;line-height:1}
.scan-anchor[data-domain="rf"] .anchor-meta{flex-direction:row}
/* 光谱锚点在轴末端:标签用绝对定位向左展开,锚点盒宽只有 2px,
   否则 100% 处的 49px 宽锚点会在 1024/768 等窄桌面上撑出横向滚动 */
.scan-anchor[data-domain="light"]{width:2px}
.scan-anchor[data-domain="light"] .anchor-meta{
  position:absolute;top:29px;right:8px;left:auto;margin:0;padding:0;
  display:flex;flex-direction:row-reverse;transform:none;white-space:nowrap;
}
.scan-anchor[data-domain="light"]:focus-visible{outline:none}
.scan-anchor[data-domain="light"]:focus-visible .anchor-meta{outline:2px solid var(--accent);outline-offset:4px;border-radius:var(--r-xs)}
.scan-anchor.anchor-active .anchor-tick{height:22px;opacity:.9;background:var(--accent)}
.scan-anchor.anchor-active[data-domain="light"] .anchor-tick{background:var(--accent2)}
.scan-anchor.anchor-active[data-domain="rf"] .anchor-tick{background:var(--pal-purple)}
.scan-anchor.anchor-active[data-domain="sound"] .anchor-tick{background:var(--pal-cyan)}
.scan-anchor.anchor-active[data-domain="thought"] .anchor-tick{background:var(--pal-mint)}
.scan-anchor.anchor-active .anchor-label{color:var(--text-main)}
.scan-anchor.anchor-active .anchor-freq{opacity:.75}
.scan-needle{position:absolute;top:0;transform:translateX(calc(-50% - 7px));pointer-events:none;z-index:2}
.scan-needle__pin{position:absolute;bottom:0;width:0;height:0;border-left:8px solid transparent;border-right:8px solid transparent;border-top:26px solid var(--text-main);opacity:.9}
.scan-needle__readout{position:absolute;bottom:6px;left:50%;transform:translateX(-50%);font-family:var(--font-mono);font-size:11px;color:var(--text-main);opacity:.8;white-space:nowrap}
.scan-needle.dir-l .scan-needle__readout{left:20px;right:auto;transform:none;text-align:left}
.scan-needle.dir-r .scan-needle__readout{left:auto;right:20px;transform:none;text-align:right}
.scan-anchor__hint{
  position:absolute;bottom:calc(100% + 34px);left:16px;right:auto;z-index:5;
  display:flex;flex-direction:column;gap:4px;width:max-content;max-width:220px;
  padding:10px 14px 10px 15px;color:var(--text-main);background:var(--hint-bg);
  border:1px solid var(--hint-border);border-left:2px solid var(--accent);
  border-radius:var(--r-md) var(--r-md) var(--r-md) 0;
  box-shadow:var(--hint-shadow);backdrop-filter:blur(16px) saturate(125%);-webkit-backdrop-filter:blur(16px) saturate(125%);
  font-family:var(--font-grot);font-size:10px;font-weight:400;letter-spacing:.03em;line-height:1.45;
  text-align:left;text-wrap:pretty;white-space:normal;
  opacity:0;visibility:hidden;pointer-events:none;transform:translateY(6px);
  transition:opacity .22s ease,visibility .22s ease,transform .22s ease;
}
.scan-anchor__hint-kicker{font-family:var(--font-mono);font-size:8px;letter-spacing:.12em;color:var(--accent-text);line-height:1.2}
.scan-anchor:hover .scan-anchor__hint,
.scan-anchor:focus-visible .scan-anchor__hint{opacity:1;visibility:visible;transform:translateY(0)}
.scan-anchor[data-domain="rf"] .scan-anchor__hint,
.scan-anchor[data-domain="light"] .scan-anchor__hint{left:auto;right:calc(100% + 18px);border-left:1px solid var(--hint-border);border-right:2px solid var(--accent);border-radius:var(--r-md) var(--r-md) 0 var(--r-md)}

.colophon{
  position:relative;z-index:35;width:100%;
  background:rgba(255,255,255,.4);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-top:1px solid var(--border);
  padding:33px 24px 12px;
}
:root.dark .colophon{background:var(--surface)}
.colophon__top{max-width:var(--measure);margin:0 auto 10px;display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;align-items:start}
.colophon__left{display:flex;flex-direction:column;gap:10px}
.colophon__copyright{font-family:var(--font-serif);font-style:italic;font-size:1rem;color:var(--text-main);line-height:1.6}
.colophon__copyright a{color:var(--text-main);text-decoration:none}
.colophon__copyright a:hover{color:var(--accent)}
.colophon__motto{font-family:var(--font-serif);font-size:1.05rem;color:var(--text-main);opacity:.72;font-style:italic}
.colophon__domain{font-family:var(--font-mono);font-size:10px;color:var(--text-dim);opacity:.55;letter-spacing:.2em;text-transform:uppercase;text-align:center;align-self:center}
.colophon__legal{display:flex;flex-direction:column;align-items:flex-end;gap:10px;font-size:.9rem;justify-self:end;font-family:var(--font-grot)}
.colophon__legal a{display:inline-flex;align-items:center;gap:4px;text-decoration:none;color:var(--text-dim);font-size:.82rem;transition:color .2s;font-family:var(--font-grot)}
.colophon__legal a:hover{color:var(--text-main)}
.colophon__legal img{width:14px;height:14px;object-fit:contain}
.colophon__bottom{max-width:var(--measure);margin:0 auto;padding-top:18px;border-top:1px solid var(--border);font-family:var(--font-grot);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-dim);opacity:.4;text-align:center}

/* ── 8. 播放器:长廊里的一个节目 ── */
body.player-page{background:var(--bg-main)}
.player-page .theatre-wrapper{
  width:100%;max-width:var(--measure);
  margin:0 auto;padding:152px 24px 0;
  display:flex;flex-direction:column;gap:28px;flex:1;
}
.programme-head{
  position:static;display:flex;flex-direction:column;align-items:flex-start;
  width:auto;height:auto;padding:0;z-index:auto;
  background:none;border:0;border-bottom:0;
  backdrop-filter:none;-webkit-backdrop-filter:none;
}
.programme-head .back-btn{
  display:inline-flex;align-items:center;gap:9px;
  margin:0 0 42px;padding:6px 0;
  color:var(--text-dim);text-decoration:none;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  transition:color .2s ease,gap .2s ease;
}
.programme-head .back-btn:hover{color:var(--accent);gap:13px}
.eyebrow{
  display:inline-flex;align-items:center;gap:14px;
  font-family:var(--font-grot);font-size:10px;font-weight:500;
  letter-spacing:.3em;text-transform:uppercase;color:var(--text-dim);
}
.eyebrow .num{font-family:var(--font-serif);font-size:14px;letter-spacing:0;text-transform:none;font-style:italic;opacity:.85}
.eyebrow .bar{width:36px;height:1px;background:var(--text-dim);opacity:.5}
.programme-head .meta-title{
  margin:20px 0 16px;max-width:100%;
  font-family:var(--font-serif);font-size:clamp(2.2rem,5vw,4.1rem);
  font-weight:400;line-height:1.05;letter-spacing:-.018em;color:var(--text-main);
  text-wrap:pretty;overflow-wrap:break-word;
}
.programme-notes{
  display:flex;flex-direction:column;gap:14px;
  padding-top:22px;border-top:1px solid var(--border);
}
.programme-notes__label{
  font-family:var(--font-mono);font-size:9px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--text-dim);
}
.programme-notes .meta-desc{
  margin:0;max-width:70ch;
  font-size:1rem;line-height:1.85;color:var(--text-muted);
  text-wrap:pretty;
}
.programme-notes .meta-desc p{margin:0 0 12px}
.programme-notes .meta-desc p:last-child{margin-bottom:0}
.player-page .stage-container{
  position:relative;width:100%;aspect-ratio:16/9;min-height:300px;
  border:1px solid var(--border-hover);border-radius:var(--r-xs);
  background:#000;
  box-shadow:none;overflow:hidden;
}
.player-page .stage-container::before,
.player-page .stage-container::after{
  content:'';position:absolute;width:18px;height:18px;z-index:11;pointer-events:none;
  border-color:rgba(255,255,255,.5);opacity:.55;
}
.player-page .stage-container::before{top:10px;left:10px;border-top:1px solid;border-left:1px solid}
.player-page .stage-container::after{bottom:10px;right:10px;border-bottom:1px solid;border-right:1px solid}
.player-page .stage-container:fullscreen::before,
.player-page .stage-container:fullscreen::after{display:none}
.player-page .video-render-wrapper{position:absolute;inset:0;border-radius:0;background:#000;overflow:hidden}
.player-page .video-render-wrapper video{width:100%;height:100%;display:block;object-fit:contain;border-radius:0;background:#000}
.player-page .stage-container.is-image{display:flex;align-items:center;justify-content:center;background:var(--bg-main)}
.player-page .stage-container.is-image img{max-width:100%;max-height:100%;object-fit:contain;display:block}
.player-page .stage-curtain{position:absolute;inset:0;z-index:5;pointer-events:none;background:#000;transform-origin:center;animation:standaloneCurtain .7s cubic-bezier(.22,1,.36,1) forwards}
@keyframes standaloneCurtain{to{opacity:0;visibility:hidden;transform:scale(1.015)}}

.player-page .center-play-overlay{
  position:absolute;top:50%;left:50%;z-index:8;width:74px;height:74px;
  border:1px solid rgba(255,255,255,.62);border-radius:50%;
  background:rgba(13,13,15,.38);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:none;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transform:translate(-50%,-50%) scale(1);
  transition:opacity .24s ease,transform .24s ease,border-color .2s ease,background .2s ease;
}
.player-page .center-play-overlay:hover{
  border-color:var(--accent);background:rgba(56,92,250,.22);
  transform:translate(-50%,-50%) scale(1.05);
}
.player-page .center-play-overlay.is-hidden{opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%,-50%) scale(.86)}
.player-page .center-play-overlay svg{width:30px;height:30px;fill:currentColor}
.player-page .pro-controls{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:12;
  display:none;flex-direction:column;gap:12px;padding:14px 16px;
  border:1px solid rgba(255,255,255,.18);border-radius:var(--r-xs);
  background:rgba(10,11,14,.72);
  backdrop-filter:blur(18px) saturate(130%);-webkit-backdrop-filter:blur(18px) saturate(130%);
  box-shadow:none;opacity:0;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease;
}
.player-page .stage-container:hover .pro-controls,
.player-page .stage-container.controls-visible .pro-controls,
.player-page .stage-container.is-paused .pro-controls{opacity:1;transform:translateY(0)}
.player-page .progress-slider-wrapper{width:100%}
.player-page .controls-bottom-group{justify-content:space-between;gap:18px}
.player-page .controls-left,.player-page .controls-right{display:flex;align-items:center;gap:14px}
.player-page .volume-wrapper{display:flex;align-items:center;gap:8px}
.player-page .ctrl-btn{
  width:34px;height:34px;border:0;border-radius:50%;
  background:transparent;color:#fff;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .18s ease,color .18s ease,transform .12s ease;
}
.player-page .ctrl-btn:hover{background:rgba(143,168,241,.18);color:var(--accent-text)}
.player-page .ctrl-btn:active{transform:scale(.94)}
.player-page .ctrl-btn:focus-visible,.player-page .pro-range:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.player-page .time-label{
  min-width:104px;color:rgba(255,255,255,.78);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;
  white-space:nowrap;user-select:none;
}
.player-page .pro-range{
  --played:0%;--buffered:0%;
  width:100%;height:4px;border-radius:0;
  appearance:none;-webkit-appearance:none;outline:none;cursor:pointer;
  background:linear-gradient(to right,var(--accent) 0 var(--played),rgba(255,255,255,.3) var(--played) var(--buffered),rgba(255,255,255,.12) var(--buffered) 100%);
}
.player-page .pro-range::-webkit-slider-runnable-track{height:4px;border-radius:0}
.player-page .pro-range::-webkit-slider-thumb{
  width:11px;height:11px;margin-top:-3.5px;
  border:1px solid var(--accent);border-radius:50%;background:#fff;
  box-shadow:none;appearance:none;-webkit-appearance:none;
  transition:transform .16s ease;
}
.player-page .pro-range:hover::-webkit-slider-thumb{transform:scale(1.25)}
.player-page .pro-range::-moz-range-thumb{width:11px;height:11px;border:1px solid var(--accent);border-radius:50%;background:#fff}
.player-page .volume-slider{width:76px}
.player-page .programme-foot{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px 0 0;border-top:1px solid var(--border);
  font-family:var(--font-mono);font-size:9px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--text-dim);
}
.player-page .programme-foot span:nth-child(2){text-align:center;flex:1}
.player-page .programme-foot span:last-child{text-align:right}
.player-page .media-meta-block{display:none}
.player-page .player-error{position:absolute;inset:0;z-index:9;display:none;place-items:center;padding:24px;color:#fff;text-align:center;background:rgba(0,0,0,.68);font-family:var(--font-mono);font-size:12px;letter-spacing:.06em}
.player-page .player-error.is-visible{display:grid}

/* ── 9. 响应式 ── */
/* 参照备份原稿的正文/侧栏关系:
   1400px 外壳 + 1fr 正文 + 320px 侧栏 + 40px 间距;侧栏在文档流内,不再绝对定位。 */
@media (min-width:769px){
  body.article-page .hero-container{
    width:calc(100% - 48px);
    max-width:1000px;
    margin-left:auto;margin-right:auto;
    padding:0;
  }
  body.article-page .hero-media-frame{max-width:100%}
  /* 宽屏主图按原始比例铺满:4:3 图不再因 78vh 限高而在两侧留下白柱 */
  body.article-page img.hero-img-placeholder{max-height:none;height:auto;object-fit:contain}
  body.article-page .detail-main-wrapper{
    display:grid;
    width:100%;
    max-width:1400px;
    padding:0 24px;
    grid-template-columns:minmax(0,1fr) 320px;
    gap:40px;
    margin-left:auto;margin-right:auto;
  }
  body.article-page .detail-article{min-width:0;max-width:none;width:auto;margin:0}
  body.article-page .paragraph{max-width:100%}
  html[lang="en"] body.article-page .paragraph{max-width:72ch}
  body.article-page .scan-line{
    width:calc(100% - 48px);
    max-width:1000px;
    margin-left:auto;margin-right:auto;
    padding:0;
  }
  body.article-page .colophon__top,
  body.article-page .colophon__bottom{max-width:1000px}
}
/* 1280px 以下侧栏移到正文之后,避免 1024/1200 笔电上正文被 320px 侧栏挤窄 */
@media (min-width:769px) and (max-width:1279px){
  body.article-page .detail-main-wrapper{
    display:block;
    max-width:1048px;
    padding:0 24px;
    margin-left:auto;margin-right:auto;
  }
  body.article-page .detail-article{width:100%;max-width:1000px;margin-left:auto;margin-right:auto}
  body.article-page .detail-sidebar{width:100%;max-width:1000px;margin:64px auto 0}
  body.article-page .sticky-panel{
    position:static;display:grid;
    grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
    gap:0 40px;border-top:1px solid var(--border);padding-top:8px;
    max-height:none;overflow:visible;
  }
  body.article-page .side-card{border-top:0;padding:18px 0}
  body.article-page .side-card:first-child{padding-top:18px}
  body.article-page .side-card:last-child{padding-bottom:18px}
}
/* ≥1280px:恢复原稿的粘滞侧栏;不设内部滚动条,矮屏时改为 static 让整栏随页面滚完 */
@media (min-width:1280px){
  body.article-page .sticky-panel{
    position:sticky;top:32px;display:flex;flex-direction:column;gap:0;
    max-height:none;overflow:visible;
  }
}
@media (min-width:1280px) and (max-height:880px){
  body.article-page .sticky-panel{position:static}
}
@media (max-width:900px){
  .masthead{padding:20px 32px}
  .masthead__logo{left:32px}
  .masthead__nav{gap:24px;font-size:12px}
  html[lang="en"] .masthead__nav{gap:14px;font-size:11px}
  .masthead__nav a{letter-spacing:.1em}
  .detail-main-wrapper{grid-template-columns:1fr;gap:48px}
  .sticky-panel{position:static;display:grid;grid-template-columns:1fr 1fr;gap:0 40px;border-top:1px solid var(--border);padding-top:8px}
  .side-card{border-top:0;padding:18px 0}
  .side-card:nth-child(3){grid-column:1/-1}
  .side-card:first-child{padding-top:18px}
  .masthead__hint{display:none}
}
@media (max-width:768px){
  :root{--head-pad:18px}
  .masthead{padding:16px 18px;font-size:12px}
  .masthead__logo{top:25px;left:18px;width:22px;height:22px}
  .masthead__nav{gap:14px}
  .masthead__nav a{padding:8px 0;min-height:40px;display:inline-flex;align-items:center}
  .masthead__lang,.masthead__theme{min-width:30px;min-height:34px;padding:2px 4px}
  .masthead__theme{font-size:13px}
  .masthead__lang{font-size:10px}
  html[lang="en"] .masthead{padding:16px 12px}
  html[lang="en"] .masthead__nav{gap:8px;font-size:9.5px}
  html[lang="en"] .masthead__nav a{padding:8px 2px;letter-spacing:.04em}
  html[lang="en"] .masthead__lang,html[lang="en"] .masthead__theme{min-width:26px;min-height:34px;font-size:11px}

  body::before,body::after{animation:none}
  body.standalone-ready .hero-title,
  body.standalone-ready .hero-subtitle,
  body.standalone-ready .project-badge-group,
  body.standalone-ready .hero-media-frame,
  body.standalone-ready .programme-head .meta-title,
  body.standalone-ready .stage-container{animation:none}

  .hero-banner{padding:118px 0 0!important;display:block!important;text-align:left!important;align-items:initial!important;justify-content:initial!important}
  .hero-container{padding:0 20px}
  .back-link{min-height:44px;margin-top:0!important;margin-bottom:24px!important;padding:10px 0}
  .programme-head .back-btn{min-height:44px;margin-bottom:26px;padding:10px 0}
  .project-badge-group{margin-bottom:18px}
  .project-badge-group::before{display:none}
  .tech-badge{font-size:11.5px!important;letter-spacing:.05em;line-height:1.75}
  /* 移动端换行时把分隔符挂在前一项末尾，避免下一行以 "/" 开头 */
  .tech-badge + .tech-badge::before{content:none;margin:0}
  .tech-badge:not(:last-child)::after{content:'/';margin:0 7px 0 6px;color:var(--border-hover)}
  .hero-title{
    font-size:clamp(2rem,9vw,2.8rem)!important;line-height:1.08!important;
    text-align:left!important;margin:0 0 18px!important;max-width:100%!important;width:100%!important;
    word-break:normal!important;text-wrap:pretty!important;
  }
  .hero-subtitle{font-size:.95rem!important;text-align:left!important;margin:0 0 34px!important;max-width:100%!important;line-height:1.8!important}
  .hero-media-frame{width:100%!important;max-width:100%!important;padding:0!important;margin:0 auto!important;border-radius:16px!important;box-shadow:none!important;background:transparent!important;overflow:hidden!important}
  .hero-media-frame::before,.hero-media-frame::after{display:none}
  img.hero-img-placeholder{max-height:none!important;height:auto!important;object-fit:contain!important;border-radius:16px!important}
  .detail-main-wrapper{display:block!important;width:100%!important;max-width:100%!important;padding:0 20px!important;margin:34px auto 0!important}
  .detail-main-wrapper .section-title{font-size:clamp(1.5rem,7vw,1.9rem);margin-bottom:22px;padding-top:18px}
  .section-block{margin:0 0 48px}
  .section-subtitle{font-size:.98rem;margin-top:34px}
  .paragraph{font-size:1rem;line-height:1.85;margin-bottom:18px;text-align:left}
  .callout-box{padding:18px 0 18px 18px;margin:26px 0}
  .callout-box::before{left:18px}
  .code-block{padding:16px!important;font-size:12px!important;margin:24px 0}
  .premium-table-wrapper,.table-wrap{overflow-x:auto}
  .premium-table,.data-table{min-width:580px}
  .architecture-grid,.figure-grid,.img-reference-row,.antenna-profile-container{grid-template-columns:1fr!important;gap:12px!important}
  .highlight-item{flex-direction:column!important;padding:18px!important;gap:12px!important;text-align:left!important}
  .hl-icon{margin:0!important}
  .figure-card img{height:auto!important;max-height:none!important}
  .component-diagram{padding:18px 14px!important}
  .stack-row{grid-template-columns:1fr!important;gap:0!important}
  .stack-label{justify-content:flex-start!important;border-right:0!important;border-bottom:1px solid var(--border);padding:9px 12px!important;text-align:left!important}
  .sticky-panel{display:flex;gap:0;padding-top:0}
  .side-card{padding:20px 0}
  .side-card:nth-child(3){grid-column:auto}
  .side-card:first-child{padding-top:0}
  .meta-list li{padding:10px 0}
  .visual-container{height:auto!important;min-height:240px!important;background:transparent!important}
  .visual-img{position:relative!important;inset:auto!important;height:auto!important;object-fit:contain!important}
  .math-block{padding-left:14px}
  .scan-line{padding:0 20px;margin-bottom:12px}
  .scan-needle{display:none}
  .scan-tick-label{font-size:8px}
  .anchor-label{font-size:11px}
  .anchor-freq{font-size:8px}
  .colophon{padding:30px 20px 10px}
  .colophon__top{grid-template-columns:1fr;gap:20px;text-align:center}
  .colophon__left{align-items:center;text-align:center}
  .colophon__domain{display:none}
  .colophon__legal{align-items:center;justify-self:center;gap:10px}
  .colophon__bottom{font-size:9px}

  .player-page .theatre-wrapper{padding:118px 20px 0;gap:24px}
  .programme-head .back-btn{margin-bottom:30px}
  .programme-head .meta-title{font-size:clamp(1.9rem,7.4vw,2.75rem);margin-top:16px;max-width:100%;text-wrap:pretty}
  .programme-notes{padding-top:18px;gap:12px}
  .programme-notes .meta-desc{font-size:.95rem;line-height:1.8}
  .player-page .stage-container{aspect-ratio:auto;min-height:0;overflow:visible;border:0;border-radius:0;background:transparent;box-shadow:none;display:flex;flex-direction:column}
  .player-page .stage-container::before,.player-page .stage-container::after{display:none}
  .player-page .video-render-wrapper{position:relative;inset:auto;width:100%;aspect-ratio:16/9;border:1px solid var(--border-hover);border-radius:var(--r-xs);box-shadow:none}
  .player-page .video-render-wrapper video{height:100%}
  .player-page .stage-container.is-image{border:1px solid var(--border);border-radius:var(--r-xs);background:var(--bg-main);overflow:hidden}
  .player-page .stage-container.is-image img{width:100%;height:auto}
  .player-page .center-play-overlay{width:60px;height:60px}
  .player-page .center-play-overlay svg{width:26px;height:26px}
  .player-page .pro-controls{
    position:relative;left:auto;right:auto;bottom:auto;width:100%;margin-top:12px;
    padding:14px;border:1px solid var(--border);border-radius:var(--r-xs);
    background:var(--surface);box-shadow:none;opacity:1;transform:none;gap:14px;
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  }
  .player-page .ctrl-btn{min-width:42px;width:42px;height:42px;border:1px solid var(--border);color:var(--text-main);background:transparent}
  .player-page .ctrl-btn:hover{background:var(--accent-glow);color:var(--accent)}
  .player-page .time-label{color:var(--text-muted);font-size:10px;min-width:90px}
  .player-page .pro-range{height:6px}
  .player-page .pro-range::-webkit-slider-runnable-track{height:6px}
  .player-page .pro-range::-webkit-slider-thumb{width:16px;height:16px;margin-top:-5px}
  .player-page .pro-range::-moz-range-thumb{width:16px;height:16px}
  .player-page .volume-slider{display:none}
  .player-page .programme-foot{flex-wrap:wrap;gap:8px 16px;line-height:1.6}
  .player-page .programme-foot span:nth-child(2){display:none}
  .player-page .programme-foot span:last-child{text-align:left}
  .is-reveal{filter:none;transform:none;transition:opacity .35s ease}
}
@media (max-width:600px){
  /* 手机上的宽表:在表格上方保留一条随横向滚动固定的提示 */
  .table-wrap::before,.premium-table-wrapper::before{
    content:'← 横向滑动 / SCROLL →';
    display:block;position:sticky;left:0;width:max-content;z-index:1;
    padding:7px 0 6px;
    font-family:var(--font-mono);font-size:9px;line-height:1.4;
    letter-spacing:.1em;color:var(--text-dim);
    background:var(--bg-main);pointer-events:none;
  }
}
@media (max-width:430px){
  .masthead__nav{gap:8px}
  html[lang="en"] .masthead__nav{gap:5px;font-size:9px}
  html[lang="en"] .masthead__nav a{padding:8px 1px;letter-spacing:0}
  .masthead__link--out{gap:3px}
  .masthead__term-cue{font-size:9px}
  .anchor-freq{display:none}
  .player-page .controls-left,.player-page .controls-right{gap:8px}
}
/* 英文窄屏:5 个长标签 + 两个开关一行放不下,把开关下沉为第二层(SPA 同款策略) */
@media (max-width:399px){
  html[lang="en"] .masthead{padding:12px 10px}
  html[lang="en"] .masthead__logo{top:18px;left:10px;width:20px;height:20px}
  html[lang="en"] .masthead__nav{position:relative;gap:5px;font-size:8.6px}
  html[lang="en"] .masthead__nav a{padding:8px 1px;letter-spacing:0}
  html[lang="en"] .masthead__ctls{position:absolute;top:calc(100% + 2px);right:0;gap:4px}
  html[lang="en"] .masthead__lang,
  html[lang="en"] .masthead__theme{width:26px;min-width:26px;height:28px;min-height:28px;padding:0;font-size:10px}
}
@media (max-width:360px){
  html[lang="en"] .masthead{padding:12px 10px}
  html[lang="en"] .masthead__nav{gap:3px;font-size:8.6px}
  html[lang="en"] .masthead__logo{top:18px;width:20px;height:20px}
  .masthead__nav{gap:6px;font-size:11px}
  .masthead__ctls{gap:2px}
  .masthead__theme,.masthead__lang{min-width:28px;padding:0}
  .detail-main-wrapper{padding:0 16px!important}
  .hero-container{padding:0 16px}
  .player-page .theatre-wrapper{padding-left:16px;padding-right:16px}
}

/* 触屏设备不展示悬停说明 */
@media (hover:none){
  .masthead__hint,.scan-anchor__hint{display:none}
}

/* 动效降级 */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .masthead,.masthead__logo{opacity:1}
  .is-reveal{opacity:1;filter:none;transform:none}
  .player-page .stage-curtain{display:none!important}
}

/* 打印:去掉外壳,保留可读正文 */
@media print{
  .masthead,.masthead__logo,.footer-dock,.back-link,.detail-sidebar,.programme-head .back-btn,.player-page .pro-controls{display:none!important}
  body{background:#fff;color:#000}
  .detail-main-wrapper{display:block;max-width:100%;padding:0}
  .hero-banner{padding:24px 0 0!important}
  .hero-title{font-size:32pt!important}
  .hero-media-frame{page-break-inside:avoid}
  .is-reveal{opacity:1!important;filter:none!important;transform:none!important}
  a{text-decoration:none;color:#000}
}