/* ============================================================
   MuoniumPlayer 官网 · 样式表
   基调：暗色 + 曜石红品牌色 + 毛玻璃（呼应 Mod 的液态玻璃/通透玻璃）
   ============================================================ */

:root{
  --bg:#0e1016;
  --bg-2:#13151c;
  --panel:rgba(255,255,255,.05);
  --panel-2:rgba(255,255,255,.075);
  --stroke:rgba(255,255,255,.11);
  --stroke-2:rgba(255,255,255,.17);

  --ink:#eef0f5;
  --ink-2:#b4bbca;
  --ink-3:#8a91a4;

  --brand:#d81e3a;
  --brand-2:#ff7848;
  --brand-soft:rgba(216,30,79,.16);
  --aqua:#5fd0e6;
  --violet:#8e7cff;

  --grad:linear-gradient(120deg,#d81e3a 0%,#ff7848 55%,#ffb56b 100%);
  --grad-soft:linear-gradient(120deg,rgba(216,30,79,.22),rgba(255,120,72,.18));

  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --r-xl:32px;

  --shadow:0 1px 2px rgba(0,0,0,.4),0 18px 50px rgba(0,0,0,.45);
  --shadow-sm:0 1px 2px rgba(0,0,0,.35),0 8px 24px rgba(0,0,0,.3);

  --maxw:1180px;
  --nav-h:66px;

  --font:"HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",
         -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-display:"Source Serif Pro","Noto Serif SC","Songti SC",Georgia,
                  "Times New Roman",serif;
  --mono:"JetBrains Mono","Cascadia Mono","SFMono-Regular",Consolas,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:15.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 背景光晕 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(216,30,79,.20),transparent 62%),
    radial-gradient(760px 480px at 92% 4%,rgba(95,208,230,.10),transparent 60%),
    radial-gradient(700px 600px at 50% 108%,rgba(142,124,255,.10),transparent 62%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(900px 620px at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(900px 620px at 50% 0%,#000 0%,transparent 78%);
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.25;margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0}
code,kbd,.mono{font-family:var(--mono);font-size:.88em}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.muted{color:var(--ink-2)}
.small{font-size:13.5px}
.hidden{display:none !important}

/* ---------------- 顶部导航 ---------------- */
.nav{
  position:sticky;top:0;z-index:60;
  height:var(--nav-h);
  background:rgba(8,9,13,.72);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid transparent;
  transition:background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.nav.nav--scrolled{
  background:rgba(8,9,13,.86);
  border-bottom-color:var(--stroke);
  box-shadow:0 12px 30px -18px rgba(0,0,0,.55);
}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:100%;
  display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:16.5px;letter-spacing:-.02em}
.brand img{width:30px;height:30px;border-radius:9px;box-shadow:0 4px 14px rgba(216,30,79,.35)}
.brand em{font-style:normal;color:var(--ink-2);font-weight:500;font-size:12px;
  padding:2px 7px;border:1px solid var(--stroke);border-radius:999px;margin-left:2px;letter-spacing:.02em}
.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--ink-2);
  transition:color .2s ease, background .2s ease, transform .2s ease;
  font-weight:500;position:relative;
}
.nav-links a:hover{color:var(--ink);background:var(--panel);transform:translateY(-1px)}
.nav-links a:active{transform:translateY(0)}
.nav-links a.active{color:#fff;background:var(--panel-2)}
.nav-toggle{display:none;margin-left:auto;width:40px;height:40px;border:1px solid var(--stroke);
  background:var(--panel);border-radius:12px;color:var(--ink);cursor:pointer;font-size:16px}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap;
  font-family:inherit;
}
.btn-primary{background:var(--grad);color:#1a0a0c;box-shadow:0 8px 26px rgba(216,30,79,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(216,30,79,.45)}
.btn-ghost{background:var(--panel);border-color:var(--stroke);color:var(--ink)}
.btn-ghost:hover{background:var(--panel-2);border-color:var(--stroke-2);transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn .ar{transition:transform .2s}
.btn:hover .ar{transform:translateX(3px)}

/* ---------------- 通用区块 ---------------- */
section{padding:88px 0;position:relative;z-index:1}
section[id]{scroll-margin-top:var(--nav-h)}
.sec-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brand-2);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-2);opacity:.6}
.sec-title{font-size:clamp(26px,3.4vw,38px);margin-bottom:14px}
.sec-desc{color:var(--ink-2);font-size:16px}

.card{
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--r);
  padding:24px;transition:.25s;
}
.card:hover{background:var(--panel-2);border-color:var(--stroke-2);transform:translateY(-3px)}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12.5px;border:1px solid var(--stroke);background:var(--panel);color:var(--ink-2);
}
.pill.brand{background:var(--brand-soft);border-color:rgba(216,30,79,.35);color:#ffa587}

/* ---------------- Hero ---------------- */
.hero{padding:78px 0 70px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,58px);letter-spacing:-.035em;margin-bottom:20px}
.hero h1 .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---- Hero 滚动字轮换（参照 site 的 rotor，改为双字同轨 + 宽度缓动） ---- */
.rotor{
  display:inline-block;overflow:hidden;white-space:nowrap;position:relative;
  line-height:1.15;
  /* 留出下伸部空间再负边距抵回去，避免裁掉字形底部 */
  padding-bottom:.14em;margin-bottom:-.14em;
  transition:width .52s cubic-bezier(.22,.9,.24,1);
}
/* 隐形量尺：留在文档流里供 JS 量宽度；可视字与它同字号同行高，top:0 即对齐 */
.rotor-sizer{visibility:hidden;display:inline-block;white-space:nowrap;line-height:1.15;pointer-events:none}
/* 可视层绝对定位盖在量尺上，新旧两个字同轨错身 */
.rotor-view{position:absolute;left:0;top:0;width:100%;height:100%}
.rotor-item{
  display:inline-block;white-space:nowrap;line-height:1.15;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  will-change:transform,opacity;
}
.rotor-item.is-cur{position:absolute;left:0;top:0}
.rotor-item.is-in{position:absolute;left:0;top:0;animation:rotorIn .58s cubic-bezier(.22,.9,.24,1) both}
.rotor-item.is-out{position:absolute;left:0;top:0;animation:rotorOut .58s cubic-bezier(.22,.9,.24,1) both}
@keyframes rotorIn{from{transform:translateY(105%);opacity:0}to{transform:translateY(0);opacity:1}}
@keyframes rotorOut{from{transform:translateY(0);opacity:1}to{transform:translateY(-105%);opacity:0}}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
@media(prefers-reduced-motion:reduce){
  /* 不做位移动画，但仍保留轮换本身（纯换字、不移动） */
  .rotor{transition:none;width:auto !important}
  .rotor-item.is-cur,.rotor-item.is-in,.rotor-item.is-out{animation:none;position:relative}
  .rotor-view{position:relative;width:auto;height:auto}
  .rotor-sizer{display:none}
}
.hero p.lead{font-size:17.5px;color:var(--ink-2);max-width:540px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-facts{display:flex;gap:26px;flex-wrap:wrap}
.hero-facts div b{display:block;font-size:22px;font-weight:700;letter-spacing:-.02em}
.hero-facts div span{font-size:12.5px;color:var(--ink-3)}

/* 播放器示意（无截图时的主视觉） */
.mock{
  position:relative;border-radius:var(--r-xl);padding:22px;
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.025));
  border:1px solid var(--stroke-2);box-shadow:var(--shadow);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
}
.mock::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  background:linear-gradient(160deg,rgba(255,255,255,.22),transparent 40%);
  -webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);
  mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);
  -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;
}
.island{
  display:flex;align-items:center;gap:10px;margin:0 auto 18px;width:74%;
  background:rgba(12,14,20,.85);border:1px solid var(--stroke);
  border-radius:999px;padding:9px 14px;box-shadow:0 8px 24px rgba(0,0,0,.45);
}
.island .art{width:26px;height:26px;border-radius:7px;background:var(--grad);flex:none}
.island .eq{display:flex;align-items:flex-end;gap:2px;height:16px}
.island .eq i{width:2.5px;background:var(--brand-2);border-radius:2px;animation:eq 1s ease-in-out infinite}
.island .eq i:nth-child(1){height:60%;animation-delay:0s}
.island .eq i:nth-child(2){height:100%;animation-delay:.15s}
.island .eq i:nth-child(3){height:45%;animation-delay:.3s}
.island .eq i:nth-child(4){height:80%;animation-delay:.45s}
@keyframes eq{0%,100%{transform:scaleY(.35)}50%{transform:scaleY(1)}}
.island .txt{font-size:12.5px;color:var(--ink-2);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.island .wave{
  width:44px;height:3px;border-radius:3px;background:rgba(255,255,255,.16);overflow:hidden;flex:none;
}
.island .wave i{display:block;height:100%;width:42%;background:var(--grad);animation:slide 4s linear infinite}
@keyframes slide{0%{transform:translateX(-110%)}100%{transform:translateX(260%)}}

.mock-body{display:flex;gap:18px}
.cover{
  width:132px;height:132px;border-radius:18px;flex:none;position:relative;overflow:hidden;
  background:conic-gradient(from 210deg,#d81e3a,#ff7848,#8e7cff,#5fd0e6,#d81e3a);
  box-shadow:0 14px 34px rgba(216,30,79,.28);
}
.cover::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.5),transparent 55%);
}
.cover span{position:absolute;bottom:10px;left:12px;font-size:11px;font-weight:700;
  color:rgba(0,0,0,.62);letter-spacing:.08em}
.mock-meta{flex:1;min-width:0;padding-top:2px}
.mock-meta h4{font-size:19px;margin-bottom:3px}
.mock-meta .ar{font-size:13.5px;color:var(--ink-2);margin-bottom:14px}
.lyr{margin:14px 0 0;display:grid;gap:9px}
.lyr p{font-size:13.5px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lyr p.on{
  font-size:15px;font-weight:600;color:transparent;
  background:linear-gradient(90deg,#fff 0%,#fff 46%,rgba(255,255,255,.28) 46%);
  -webkit-background-clip:text;background-clip:text;
  animation:karaoke 4.5s ease-in-out infinite;
  background-size:220% 100%;
}
@keyframes karaoke{0%{background-position:100% 0}55%,100%{background-position:0 0}}
.pbar{height:4px;border-radius:4px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:16px}
.pbar i{display:block;height:100%;width:38%;background:var(--grad);border-radius:4px;
  animation:prog 9s linear infinite}
@keyframes prog{0%{width:6%}100%{width:96%}}
.mock-foot{display:flex;justify-content:space-between;font-size:11.5px;color:var(--ink-3);margin-top:8px}
.mock-tags{display:flex;gap:7px;margin-top:18px;flex-wrap:wrap}

/* ---------------- 定位条 ---------------- */
.position{
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(216,30,79,.10),rgba(255,255,255,.03));
  padding:34px 36px;font-size:17px;line-height:1.85;
}
.position strong{color:#fff}

/* ---------------- 能力卡 ---------------- */
.feat{position:relative;overflow:hidden}
.feat .ico{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;
  background:var(--grad-soft);border:1px solid rgba(216,30,79,.28);font-size:19px;
}
.feat h3{font-size:17.5px;margin-bottom:8px}
.feat p{color:var(--ink-2);font-size:14.5px;line-height:1.7}

/* ---------------- 表格 ---------------- */
.table-wrap{overflow-x:auto;border:1px solid var(--stroke);border-radius:var(--r);background:var(--panel)}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:640px}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--stroke)}
thead th{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);
  background:rgba(255,255,255,.03);font-weight:600}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:rgba(255,255,255,.03)}
td strong{color:#fff}
td code{background:rgba(255,255,255,.07);padding:2px 6px;border-radius:6px;font-size:12.5px}

/* ---------------- 版本矩阵 ---------------- */
.mtx{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mtx .v{
  border:1px solid var(--stroke);border-radius:var(--r);padding:20px;background:var(--panel);
  transition:.22s;display:block;position:relative;overflow:hidden;
}
.mtx .v:hover{border-color:rgba(216,30,79,.45);background:var(--panel-2);transform:translateY(-3px)}
.mtx .v b{font-size:20px;letter-spacing:-.02em;display:block}
.mtx .v .ld{display:flex;gap:6px;margin:10px 0 12px;flex-wrap:wrap}
.mtx .v .ld span{font-size:11.5px;padding:2px 8px;border-radius:6px;background:rgba(255,255,255,.07);
  color:var(--ink-2);border:1px solid var(--stroke)}
.mtx .v p{font-size:13px;color:var(--ink-3);line-height:1.65}
.mtx .v .go{margin-top:14px;font-size:13px;color:var(--brand-2);font-weight:600}

/* ---------------- 歌词样式画廊 ---------------- */
.styles{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.style-tile{
  border:1px solid var(--stroke);border-radius:14px;padding:16px 14px;background:var(--panel);
  min-height:118px;display:flex;flex-direction:column;justify-content:space-between;transition:.22s;
}
.style-tile:hover{border-color:var(--stroke-2);background:var(--panel-2);transform:translateY(-3px)}
.style-tile .nm{font-size:14.5px;font-weight:600;margin-top:12px}
.style-tile .sub{font-size:11.5px;color:var(--ink-3);margin-top:3px;line-height:1.5}
.mini{height:44px;display:flex;flex-direction:column;justify-content:center;gap:5px;overflow:hidden}
.mini i{display:block;height:4px;border-radius:4px;background:rgba(255,255,255,.14)}
.mini i.a{background:var(--grad);width:72%}
.mini i.b{width:52%}
.mini i.c{width:64%;opacity:.5}
.mini.dots{gap:7px;flex-direction:row;flex-wrap:wrap;align-items:center}
.mini.dots i{height:6px;width:6px;border-radius:50%}
.mini.dots i:nth-child(2n){background:var(--aqua);opacity:.7;width:8px;height:8px}
.mini.dots i:nth-child(3n){background:var(--violet);opacity:.7}
.mini.bubble{align-items:flex-start}
.mini.bubble i{height:8px;border-radius:8px}
.mini.clock i:nth-child(1){margin-left:12%}
.mini.clock i:nth-child(2){margin-left:22%;width:44%}
.mini.mirror i:nth-child(1),.mini.mirror i:nth-child(3){background:linear-gradient(90deg,transparent,rgba(255,255,255,.18))}

/* ---------------- 主题色板 ---------------- */
.themes{display:flex;flex-wrap:wrap;gap:10px}
.theme-chip{
  display:flex;align-items:center;gap:9px;padding:7px 14px 7px 8px;border-radius:999px;
  border:1px solid var(--stroke);background:var(--panel);font-size:13.5px;transition:.2s;
}
.theme-chip:hover{border-color:var(--stroke-2);transform:translateY(-2px)}
.theme-chip .sw{width:20px;height:20px;border-radius:50%;border:1px solid rgba(255,255,255,.2)}

/* ---------------- 一起听对比 ---------------- */
.vs{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.vs .col{border:1px solid var(--stroke);border-radius:var(--r-lg);padding:28px;background:var(--panel)}
.vs .col.best{border-color:rgba(216,30,79,.4);background:linear-gradient(160deg,rgba(216,30,79,.10),rgba(255,255,255,.03))}
.vs h3{font-size:19px;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.vs .tag,.tag{font-size:11.5px;padding:2px 9px;border-radius:999px;background:var(--brand-soft);
  color:#ffa587;border:1px solid rgba(216,30,79,.3);font-weight:600;white-space:nowrap}
.vs .sub{color:var(--ink-3);font-size:13.5px;margin-bottom:18px}
.vs ul{list-style:none;display:grid;gap:10px}
.vs li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2)}
.vs li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);transform:rotate(45deg)}
.vs li b{color:var(--ink)}

/* ---------------- 下载页 ---------------- */
.sel{display:flex;flex-direction:column;gap:22px}
.sel-row .lb{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);
  margin-bottom:10px;font-weight:600}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  padding:10px 18px;border-radius:12px;border:1px solid var(--stroke);background:var(--panel);
  color:var(--ink-2);font-size:15px;cursor:pointer;transition:.2s;font-family:inherit;font-weight:500;
}
.chip:hover{border-color:var(--stroke-2);color:var(--ink)}
.chip.on{background:var(--brand-soft);border-color:rgba(216,30,79,.5);color:#fff;font-weight:600;
  box-shadow:0 0 0 3px rgba(216,30,79,.10)}
.chip small{display:block;font-size:11.5px;opacity:.7;font-weight:400}

.dl-card{margin-top:34px;border:1px solid var(--stroke-2);border-radius:var(--r-lg);overflow:hidden;
  background:var(--panel);box-shadow:var(--shadow)}
.dl-top{padding:28px 30px;background:linear-gradient(120deg,rgba(216,30,79,.14),rgba(255,255,255,.02));
  border-bottom:1px solid var(--stroke);display:flex;flex-wrap:wrap;gap:20px;align-items:center;
  justify-content:space-between}
.dl-top h3{font-size:24px;margin-bottom:6px}
.dl-top .file{font-family:var(--mono);font-size:13px;color:var(--brand-2);word-break:break-all}
.dl-body{padding:26px 30px;display:grid;grid-template-columns:1.1fr .9fr;gap:30px}
.kv{display:grid;gap:12px}
.kv div{display:flex;justify-content:space-between;gap:14px;font-size:14.5px;
  padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.08)}
.kv div:last-child{border-bottom:none;padding-bottom:0}
.kv span{color:var(--ink-3)}
.kv b{font-weight:600;text-align:right}
.req h4{font-size:14px;margin-bottom:12px;color:var(--ink-2);font-weight:600}
.req ul{list-style:none;display:grid;gap:10px}
.req li{border:1px solid var(--stroke);border-radius:12px;padding:12px 14px;background:rgba(255,255,255,.03)}
.req li .n{font-size:14.5px;font-weight:600;display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.req li .n em{font-style:normal;font-size:12px;color:var(--ink-3);font-family:var(--mono)}
.req li a{font-size:12.5px;color:var(--brand-2)}
.req li a:hover{text-decoration:underline}
.dl-note{margin:22px 30px 30px;padding:16px 18px;border-radius:14px;background:rgba(95,208,230,.07);
  border:1px solid rgba(95,208,230,.22);font-size:14px;color:#cfeef5}
.dl-note b{color:#fff}
.copy-btn{
  border:1px solid var(--stroke);background:rgba(255,255,255,.05);color:var(--ink-2);
  border-radius:9px;padding:5px 11px;font-size:12px;cursor:pointer;font-family:var(--mono);transition:.2s;
}
.copy-btn:hover{color:#fff;border-color:var(--stroke-2)}

.warn{border-radius:var(--r);border:1px solid rgba(255,180,80,.3);background:rgba(255,170,60,.08);
  padding:20px 22px;font-size:14.5px;color:#ffdbb0}
.warn b{color:#fff}

/* ---------------- 文档页 ---------------- */
.doc-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:48px;align-items:start}
.doc-nav{position:sticky;top:calc(var(--nav-h) + 24px);max-height:calc(100vh - var(--nav-h) - 48px);
  overflow-y:auto;font-size:14px}
.doc-nav .grp{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);
  margin:20px 0 8px;padding-left:14px}
.doc-nav ul{list-style:none;border-left:1px solid var(--stroke)}
.doc-nav li a{display:block;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;
  color:var(--ink-2);transition:.15s}
.doc-nav li a:hover{color:var(--ink)}
.doc-nav li a.on{color:var(--brand-2);border-left-color:var(--brand);font-weight:600}
.doc-main{min-width:0}
.doc-page{padding:40px 0 40px;border-bottom:1px solid var(--stroke)}
.doc-page:last-child{border-bottom:none}
.doc-page h2{font-size:30px;margin-bottom:8px;scroll-margin-top:calc(var(--nav-h) + 24px)}
.doc-page .lead-in{color:var(--ink-2);margin-bottom:24px;font-size:16px}
.doc-page h3{font-size:19px;margin:34px 0 12px;scroll-margin-top:calc(var(--nav-h) + 24px)}
.doc-page p{color:var(--ink-2);margin-bottom:14px}
.doc-page ul{list-style:none;display:grid;gap:9px;margin-bottom:16px;padding-left:2px}
.doc-page ul li{position:relative;padding-left:20px;color:var(--ink-2);font-size:14.5px}
.doc-page ul li::before{content:"";position:absolute;left:2px;top:.75em;width:6px;height:6px;
  border-radius:50%;background:var(--brand);opacity:.8}
.doc-page ul li b,.doc-page p b{color:var(--ink)}
.step{display:grid;gap:14px;counter-reset:s}
.step li{list-style:none;position:relative;padding-left:42px;color:var(--ink-2);font-size:15px}
.step li::before{
  counter-increment:s;content:counter(s);position:absolute;left:0;top:1px;
  width:26px;height:26px;border-radius:9px;display:grid;place-items:center;font-size:13px;font-weight:700;
  background:var(--brand-soft);border:1px solid rgba(216,30,79,.35);color:#ffa587;
}
.note{border-left:3px solid var(--brand);background:rgba(216,30,79,.07);padding:14px 18px;
  border-radius:0 12px 12px 0;font-size:14.5px;color:var(--ink-2);margin:18px 0}
.note b{color:#fff}
kbd{background:rgba(255,255,255,.09);border:1px solid var(--stroke-2);border-bottom-width:2px;
  border-radius:7px;padding:2px 8px;font-size:12.5px;color:var(--ink);font-family:var(--mono)}
pre{background:rgba(0,0,0,.45);border:1px solid var(--stroke);border-radius:14px;padding:18px 20px;
  overflow-x:auto;font-family:var(--mono);font-size:13px;line-height:1.85;color:#d8dce8;margin:16px 0}
.faq details{border:1px solid var(--stroke);border-radius:14px;background:var(--panel);margin-bottom:12px;
  overflow:hidden}
.faq details[open]{border-color:var(--stroke-2);background:var(--panel-2)}
.faq summary{padding:16px 20px;cursor:pointer;font-weight:600;font-size:15.5px;list-style:none;
  display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand-2);font-size:20px;font-weight:400;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 20px 18px;color:var(--ink-2);font-size:14.5px}

/* ---------------- 画廊 ---------------- */
.shots{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.shot{border:1px solid var(--stroke);border-radius:var(--r-lg);overflow:hidden;background:var(--panel);
  transition:.25s}
.shot:hover{border-color:var(--stroke-2);transform:translateY(-3px)}
.shot img{width:100%;background:#000}
.shot video{width:100%;background:#000;display:block}
.shot .cap{padding:18px 20px}
.shot .cap h3{font-size:16.5px;margin-bottom:5px}
.shot .cap p{font-size:13.5px;color:var(--ink-3)}

/* ---------------- 关于 / 合规 ---------------- */
.legal{display:grid;gap:18px}
.legal .box{border:1px solid var(--stroke);border-radius:var(--r);padding:26px 28px;background:var(--panel)}
.legal h3{font-size:18px;margin-bottom:10px}
.legal p,.legal li{color:var(--ink-2);font-size:14.5px}
.legal ul{list-style:none;display:grid;gap:9px;padding-left:2px}
.legal ul li{position:relative;padding-left:20px}
.legal ul li::before{content:"";position:absolute;left:2px;top:.75em;width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:.8}

/* ---------------- 交流群 ---------------- */
.comm{display:grid;grid-template-columns:1.4fr .6fr;gap:20px;align-items:stretch}

.comm-main{
  position:relative;overflow:hidden;
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:
    radial-gradient(120% 150% at 0% 0%,rgba(216,30,79,.17),transparent 60%),
    radial-gradient(120% 150% at 100% 100%,rgba(142,124,255,.15),transparent 58%),
    var(--panel);
  padding:34px;
}
.comm-main::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 86%);
  mask-image:linear-gradient(180deg,#000,transparent 86%);
}
.comm-main>*{position:relative;z-index:1}

.comm-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;
  color:var(--brand-2);margin-bottom:16px;
}
.comm-kicker::before{content:"";width:22px;height:1px;background:var(--brand-2);opacity:.6}
.comm-kicker i{font-style:normal;font-family:var(--mono);letter-spacing:.06em;color:var(--ink-3)}

.comm-name{
  font-family:var(--font-display);
  font-size:clamp(21px,2.6vw,28px);line-height:1.4;letter-spacing:-.01em;
  margin-bottom:12px;
}
.comm-name .q{color:var(--brand-2)}
.comm-lead{color:var(--ink-2);font-size:15px;max-width:56ch}

.comm-list{list-style:none;display:grid;gap:14px;margin:26px 0 28px}
.comm-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start}
.comm-list .dot{
  width:26px;height:26px;border-radius:9px;flex:none;display:grid;place-items:center;
  font-size:12px;font-weight:700;font-family:var(--mono);
  background:var(--brand-soft);border:1px solid rgba(216,30,79,.34);color:#ffa587;
  margin-top:1px;
}
.comm-list b{display:block;font-size:15px;color:var(--ink);margin-bottom:3px}
.comm-list span{font-size:14px;color:var(--ink-2);line-height:1.62}

.comm-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

.comm-qr{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  text-align:center;
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:linear-gradient(150deg,rgba(216,30,79,.13),rgba(142,124,255,.09)),var(--bg-2);
  padding:28px 24px;
}
.comm-qr-frame{
  width:100%;max-width:212px;padding:10px;border-radius:20px;
  background:var(--bg-2);border:1px solid var(--stroke-2);
  box-shadow:0 18px 44px rgba(0,0,0,.55),0 0 0 6px rgba(255,255,255,.025);
}
.comm-qr-frame img{width:100%;height:auto;display:block;border-radius:12px}
.comm-qr-info{display:grid;gap:6px}
.comm-qr-cap{font-size:14.5px;color:var(--ink)}
.comm-qr-no{font-size:13.5px;color:var(--ink-3)}
.comm-qr-no b{font-family:var(--mono);font-size:15px;color:var(--ink);letter-spacing:.04em}
.comm-qr-link{font-size:12.5px;color:var(--ink-3);border-bottom:1px solid transparent;transition:.2s}
.comm-qr-link:hover{color:var(--brand-2);border-bottom-color:rgba(255,120,72,.5)}

/* 紧凑版：内页底部一条 */
.comm-strip{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(216,30,79,.11),rgba(142,124,255,.07)),var(--panel);
  padding:22px 26px;
}
.comm-strip .cs-qr{
  width:86px;height:86px;flex:none;border-radius:16px;padding:5px;
  background:var(--bg-2);border:1px solid var(--stroke-2);
}
.comm-strip .cs-qr img{width:100%;height:100%;display:block;border-radius:11px}
.comm-strip .cs-text{flex:1;min-width:238px}
.comm-strip h3{font-size:17px;margin-bottom:6px}
.comm-strip .cs-act{display:flex;gap:10px;flex-wrap:wrap}
.comm-strip .cs-no{font-family:var(--mono);color:var(--ink);letter-spacing:.04em}

/* ---------------- 页脚 ---------------- */
footer{border-top:1px solid var(--stroke);margin-top:60px;padding:56px 0 40px;
  background:rgba(0,0,0,.28);position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px}
.foot-grid h4{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);
  margin-bottom:14px;font-weight:600}
.foot-grid ul{list-style:none;display:grid;gap:9px}
.foot-grid li a{font-size:14px;color:var(--ink-2)}
.foot-grid li a:hover{color:var(--brand-2)}
.foot-bottom{margin-top:40px;padding-top:22px;border-top:1px solid var(--stroke);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--ink-3)}

/* ---------------- 滚动粒子层 ---------------- */
#mp-particles{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:0;
  transition:opacity .9s ease}
#mp-particles.ready{opacity:1}

/* ---------------- 进场动画 & 灯箱 ---------------- */
[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
[data-reveal].in{opacity:1;transform:none}
.lightbox{position:fixed;inset:0;z-index:120;background:rgba(4,5,8,.9);cursor:zoom-out;
  display:grid;place-items:center;padding:40px;backdrop-filter:blur(10px)}
.lightbox img{max-width:94vw;max-height:88vh;border-radius:16px;box-shadow:var(--shadow);
  border:1px solid var(--stroke)}

/* ---------------- 微交互（2026 常用的一组习惯） ---------------- */
/* 时长约定：hover/focus 150-200ms，按下 100-150ms，入场 400-600ms */

/* 导航滚动进度 */
.nav::after{
  content:"";position:absolute;left:0;bottom:-1px;height:2px;width:var(--sp,0%);
  background:var(--grad);transition:width .1s linear;
}
.nav-toggle:active{transform:scale(.94)}

/* 入场；--d 由 JS 按同组顺序写入，做 60ms 级别的交错 */
[data-reveal]{will-change:transform,opacity;transition-delay:var(--d,0ms)}
[data-reveal].in{will-change:auto}

/* Hero 拆解入场 */
.hero-in{opacity:0;animation:heroUp .72s cubic-bezier(.2,.7,.3,1) forwards;animation-delay:var(--d,0ms)}
@keyframes heroUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* 指针光晕：只改 opacity，不动阴影，避免每帧重绘 */
.card,.mtx .v,.style-tile{position:relative}
.card,.mtx .v,.style-tile,.theme-chip,.shot{isolation:isolate}
.card::after,.mtx .v::after,.style-tile::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  opacity:0;transition:opacity .35s ease;
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,50%),rgba(216,30,79,.20),transparent 62%);
}
.card:hover::after,.mtx .v:hover::after,.style-tile:hover::after{opacity:1}

/* 按下反馈（150ms 内） */
.btn{transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,border-color .2s ease}
.btn:active{transform:translateY(0) scale(.975);transition-duration:.09s}
.chip:active{transform:scale(.97);transition-duration:.09s}
.copy-btn:active{transform:scale(.94);transition-duration:.09s}

/* 能力卡图标：悬停轻微旋转 */
.feat .ico{transition:transform .45s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease}
.feat:hover .ico{transform:translateY(-2px) rotate(-6deg)}

/* 标题下方 eyebrow 的短线：进场时画出来 */
.sec-head.in,.card.in,.hero-facts.in{--go:1}
.sec-head .eyebrow::before{
  transform-origin:left;transform:scaleX(.2);opacity:0;
  transition:transform .7s cubic-bezier(.2,.7,.3,1) .15s,opacity .4s ease .15s;
}
.sec-head.in .eyebrow::before{transform:scaleX(1);opacity:.6}

/* 页脚链接下划线：从左向右画出 */
.foot-grid li a{position:relative}
.foot-grid li a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:right;transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
.foot-grid li a:hover::after{transform:scaleX(1);transform-origin:left}

/* Hero 主视觉：入场结束后接极慢浮动（避免与入场动画抢 animation 属性） */
.mock.floaty{animation:floaty 11s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.cover{animation:hue 18s linear infinite}
@keyframes hue{to{filter:hue-rotate(26deg)}}

/* ---------------- 响应式 ---------------- */
@media(max-width:1180px){
  .nav-links a{padding:8px 12px;font-size:14px}
}
@media(max-width:1100px){
  .nav-links{
    display:none;position:absolute;top:var(--nav-h);left:0;right:0;flex-direction:column;
    align-items:stretch;gap:2px;padding:14px;background:rgba(8,9,13,.97);
    border-bottom:1px solid var(--stroke);backdrop-filter:blur(18px);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:12px;font-size:14.5px}
  .nav-toggle{display:grid;place-items:center}
}
@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .mtx{grid-template-columns:repeat(2,1fr)}
  .styles{grid-template-columns:repeat(3,1fr)}
  .doc-layout{grid-template-columns:1fr;gap:28px}
  .doc-nav{position:static;max-height:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .comm{grid-template-columns:1fr}
  .comm-qr{flex-direction:row;align-items:center;text-align:left;gap:20px;justify-content:flex-start}
  .comm-qr-frame{max-width:156px;flex:none}
  .comm-qr-info{gap:5px}
}
@media(max-width:720px){
  section{padding:64px 0}
  .g2,.g3,.g4,.vs,.mtx,.dl-body,.shots,.styles{grid-template-columns:1fr}
  .styles{grid-template-columns:repeat(2,1fr)}
  .position{padding:26px 22px;font-size:16px}
  .foot-grid{grid-template-columns:1fr}
  .mock-body{flex-direction:column}
  .cover{width:100%;height:150px}
  .comm-main{padding:26px 22px}
  .comm-qr{flex-direction:column;text-align:center;padding:24px 20px}
  .comm-qr-frame{max-width:180px}
  .comm-strip{padding:20px;gap:18px}
  .comm-strip .cs-qr{width:74px;height:74px}
  .comm-strip .cs-act{width:100%}
}
/* ---------------- Active Theory 风格 · GPU 液态层 ----------------
   #at-flow  内容之下（z0）：指针轨迹 + 滚动速度扭曲的品牌色极光
   #at-gl    内容之上（z45）：img[data-gl] 的液态扭曲（波纹 / 牵引 / 色散）
   两个 canvas 都由 JS 动态创建；不支持 WebGL 时不会出现。            */
#at-flow,#at-gl{position:fixed;left:0;top:0;pointer-events:none;display:block}
#at-flow{z-index:0;opacity:0;transition:opacity 1.4s ease}
#at-flow.ready{opacity:var(--at-flow-opacity,.5)}
#at-gl{z-index:45;opacity:0;transition:opacity .45s ease}
#at-gl.ready{opacity:1}
/* GPU 接管的图片给上层 canvas 让位；只有纹理真的建起来才会挂这个类 */
img[data-gl].aty-live{opacity:0}

/* ---------------- Active Theory 风格 · 差异混合光标 ---------------- */
.at-cursor{position:fixed;left:0;top:0;z-index:200;pointer-events:none;
  mix-blend-mode:difference;opacity:0;transition:opacity .3s ease}
.at-cursor.on{opacity:1}
.at-cursor i{position:absolute;left:0;top:0;display:block}
.atc-dot{width:6px;height:6px;border-radius:50%;background:#fff}
.atc-ring{width:42px;height:42px;border:1.5px solid #fff;border-radius:50%}
.atc-label{opacity:0;white-space:nowrap;font-size:12px;font-weight:600;
  letter-spacing:.05em;color:#fff;font-family:var(--mono)}

/* ============= 副 Hero（用于开发者页等内页头） ============= */
.sub-hero{padding:88px 0 28px;position:relative;overflow:hidden}
.sub-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--stroke) 20%,var(--stroke) 80%,transparent);
}
.sub-hero h1{
  font-family:var(--font-display);
  font-size:clamp(34px,5vw,56px);
  letter-spacing:-.04em;margin:8px 0 18px;font-weight:600;
  color:var(--ink);
  animation:lineUp .9s cubic-bezier(.22,.9,.24,1) both;
}
.sub-hero .lead{font-size:17px;color:var(--ink-2);max-width:680px;margin-bottom:24px;line-height:1.7}
.sub-hero .hero-cta{margin-top:6px}
.sub-hero .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);
  position:relative;
}
.sub-hero .eyebrow::before{
  content:"";width:32px;height:1px;background:var(--brand);
  display:inline-block;
  transform-origin:left;
  animation:eyebrowLine .9s cubic-bezier(.22,.9,.24,1) both;
}
@keyframes eyebrowLine{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* ============= 导航当前页高亮 ============= */
.nav-links a.is-cur{color:var(--brand-2);position:relative}
.nav-links a.is-cur::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-6px;height:1.5px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:2px;
}


/* ============================================================
   开发者页（editorial 杂志风 · 重设计）
   ============================================================ */
.dev-page .nav{
  background:linear-gradient(180deg,rgba(10,8,12,.7),rgba(10,8,12,.25));
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}

/* ---------- 大标题 Hero ---------- */
.dev-hero{
  position:relative;padding:120px 0 80px;overflow:hidden;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(216,30,79,.14), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 100%, rgba(95,208,230,.10), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,.18));
}
.dev-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:80px 100%;
  mask-image:linear-gradient(180deg, black, transparent 80%);
  -webkit-mask-image:linear-gradient(180deg, black, transparent 80%);
}
.dev-hero-meta{
  display:flex;justify-content:space-between;align-items:center;
  font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:36px;
}
.dev-hero-tag{display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px;border:1px solid var(--stroke);border-radius:999px;
  background:var(--panel);
}
.dev-hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px var(--brand);
  animation:pulseDot 2.2s ease-in-out infinite;
}
@keyframes pulseDot{0%,100%{opacity:.4}50%{opacity:1}}
.dev-hero-tag--right::before{display:none}
.dev-hero-tag--right{padding-left:8px}

.dev-hero-title{
  font-family:var(--font-display,'Times New Roman',serif);
  font-size:clamp(48px,8.6vw,128px);
  line-height:.95;
  letter-spacing:-.045em;font-weight:700;color:var(--ink);
  margin:0 0 48px;
}
.dev-hero-line{display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;flex-wrap:nowrap;
  animation:lineUp .9s cubic-bezier(.22,.9,.24,1) both;
}
.dev-hero-line--alt{
  justify-content:flex-end;color:var(--brand);
  animation:lineUp .9s cubic-bezier(.22,.9,.24,1) both;
  animation-delay:.12s;
  padding-left:8%;
}
@keyframes lineUp{from{opacity:0;transform:translateY(36px)}to{opacity:1;transform:none}}
.dev-hero-word{display:inline-block}
.dev-hero-word--alt{
  background:linear-gradient(120deg,#d81e3a 0%,#ff7848 45%,#e88fff 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-style:italic;letter-spacing:-.04em;
}
.dev-hero-num{
  font-family:'Times New Roman',serif;
  font-size:clamp(16px,1.5vw,22px);color:var(--ink-3);
  font-style:italic;font-weight:400;
  font-feature-settings:"tnum";
  align-self:flex-start;padding-top:.5em;
}
.dev-hero-num--alt{color:var(--brand-2);opacity:.7}

.dev-hero-foot{
  display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:flex-end;
  padding-top:24px;
  border-top:1px solid var(--stroke);
  position:relative;
}
.dev-hero-foot::before{
  content:"";position:absolute;top:-1px;left:0;width:18%;height:1px;
  background:linear-gradient(90deg,var(--brand),transparent);
}
.dev-hero-lead{
  font-size:16.5px;color:var(--ink-2);line-height:1.7;margin:0;
  max-width:520px;
}
.dev-hero-stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px 24px;
  border-left:1px solid var(--stroke);padding-left:24px;
}
.dev-stat{
  position:relative;
}
.dev-stat-n{
  font-size:42px;font-weight:600;letter-spacing:-.03em;color:var(--ink);
  font-feature-settings:"tnum";
  display:flex;align-items:baseline;gap:2px;
}
.dev-stat-n::after{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);opacity:.7;align-self:center;margin-left:2px;
}
.dev-stat-l{font-size:12px;color:var(--ink-3);letter-spacing:.05em;
  margin-top:2px;
}

/* ---------- 跑马灯（hero 底部） ---------- */
.dev-hero-marquee{
  margin-top:48px;overflow:hidden;position:relative;
  mask-image:linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image:linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.dev-hero-marquee-track{
  display:inline-flex;gap:18px;white-space:nowrap;
  font-size:13px;letter-spacing:.18em;color:var(--ink-3);
  animation:marquee 32s linear infinite;
  padding:14px 0;border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke);
}
.dev-hero-dot{color:var(--brand);font-size:8px;align-self:center}
@keyframes marquee{to{transform:translateX(-50%)}}
.dev-hero-marquee-track > span:nth-child(odd){font-weight:600;color:var(--ink-2)}

/* ---------- 通用：section 标题 ---------- */
.dev-h2{
  font-family:var(--font-display,'Times New Roman',serif);
  font-size:clamp(28px,4vw,46px);
  letter-spacing:-.03em;font-weight:600;color:var(--ink);
  margin:0 0 14px;
}
.dev-h2-desc{
  color:var(--ink-2);font-size:15px;line-height:1.7;max-width:620px;margin:0 0 36px;
}
.dev-h2-desc code{
  font-size:13px;background:var(--panel);padding:1px 6px;border-radius:4px;
  border:1px solid var(--stroke);color:var(--ink);
}

/* ---------- 三位作者卡 ---------- */
.dev-team{padding:80px 0 60px}
.dev-team-head{display:flex;align-items:flex-start;gap:24px;flex-wrap:wrap}
.dev-team-head .eyebrow{flex:none}
.dev-team-head .dev-h2-desc{margin-left:auto;max-width:480px}

.dev-cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
@media(max-width:1080px){.dev-cards{grid-template-columns:1fr 1fr}.dev-team-head .dev-h2-desc{margin-left:0}}
@media(max-width:760px){.dev-cards{grid-template-columns:1fr}}

.dev2{
  position:relative;
  background:linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border:1px solid var(--stroke);
  border-radius:var(--r-lg);
  padding:28px 26px 24px;
  display:flex;flex-direction:column;gap:18px;
  transition:transform .35s cubic-bezier(.22,.9,.24,1),
             border-color .35s, box-shadow .35s,
             opacity .7s cubic-bezier(.22,.9,.24,1) var(--d,0ms);
  overflow:hidden;
  opacity:0;transform:translateY(20px);
}
.dev2.in{opacity:1;transform:translateY(0)}
.dev2.in:hover{transform:translateY(-4px)}

.dev-stat,.dev-flow-step,.dev-contact-card,.dev-note{
  opacity:0;transform:translateY(14px);
  transition:opacity .7s cubic-bezier(.22,.9,.24,1) var(--d,0ms),
             transform .7s cubic-bezier(.22,.9,.24,1) var(--d,0ms),
             border-color .35s, background .35s;
}
.dev-stat.in,.dev-flow-step.in,.dev-contact-card.in,.dev-note.in{
  opacity:1;transform:none;
}
.dev-flow-step.in:hover{transform:translateY(-3px)}
.dev-contact-card.in:hover{transform:translateY(-3px)}
.dev2::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(135deg, transparent 50%, rgba(255,255,255,.04) 100%);
}
.dev2::after{
  content:"";position:absolute;left:0;top:0;right:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,var(--brand),transparent);
  opacity:0;transition:opacity .35s ease;
}
.dev2:hover{
  transform:translateY(-4px);
  border-color:var(--stroke-2);
  box-shadow:0 24px 50px -20px rgba(0,0,0,.6);
}
.dev2:hover::after{opacity:.8}

.dev2:nth-child(1){--accent:#d81e3a;--accent-soft:rgba(216,30,79,.18)}
.dev2:nth-child(2){--accent:#5fd0e6;--accent-soft:rgba(95,208,230,.18)}
.dev2:nth-child(3){--accent:#7be07b;--accent-soft:rgba(123,224,123,.18)}

.dev2-mark{
  position:absolute;top:18px;right:22px;
  font-family:'Times New Roman',serif;
  font-size:54px;font-weight:600;font-style:italic;color:var(--accent);
  opacity:.16;letter-spacing:-.04em;line-height:1;
  user-select:none;pointer-events:none;
  transition:opacity .35s ease, transform .35s ease;
}
.dev2:hover .dev2-mark{opacity:.32;transform:translateY(-2px)}

.dev2-head{display:flex;align-items:center;gap:18px}
.dev2-avatar{
  width:64px;height:64px;border-radius:50%;
  display:grid;place-items:center;
  font-family:'Times New Roman',serif;
  font-size:24px;font-weight:600;color:#0c0c0c;
  flex:none;letter-spacing:0;
  position:relative;
}
.dev2-avatar::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;
  border:1px solid var(--accent);opacity:.4;
  transition:transform .35s cubic-bezier(.22,.9,.24,1), opacity .35s;
}
.dev2:hover .dev2-avatar::after{
  transform:scale(1.15);opacity:.8;
}
.dev2-avatar--h{background:linear-gradient(135deg,#ffb38e,#d81e3a)}
.dev2-avatar--y{background:linear-gradient(135deg,#9be6f5,#8e7cff)}
.dev2-avatar--n{background:linear-gradient(135deg,#cdf5b8,#3fb3b3)}

.dev2-id{min-width:0;flex:1}
.dev2-name{
  font-family:var(--font-display,'Times New Roman',serif);
  font-size:24px;font-weight:600;letter-spacing:-.02em;
  margin:0;color:var(--ink);line-height:1.15;
}
.dev2-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}
.dev2-tag{
  font-size:11px;font-weight:500;
  padding:2px 8px;border-radius:4px;
  background:var(--accent-soft);
  color:var(--accent);
  border:1px solid color-mix(in oklab, var(--accent) 35%, transparent);
  letter-spacing:.02em;
}
.dev2-role{
  font-size:12.5px;color:var(--ink-3);letter-spacing:.04em;
  margin-top:6px;
}
.dev2-bio{
  font-size:14px;line-height:1.7;color:var(--ink-2);margin:0;
  padding:12px 0;border-top:1px dashed var(--stroke);
}

.dev2-block{display:flex;gap:14px;align-items:flex-start}
.dev2-block-l{
  flex:none;width:74px;font-size:11.5px;color:var(--ink-3);
  letter-spacing:.05em;text-transform:uppercase;
  padding-top:2px;
}
.dev2-projects{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:7px;flex:1}
.dev2-projects li{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;font-size:13.5px}
.dev2-projects a{
  color:var(--ink);font-weight:500;text-decoration:none;
  border-bottom:1px solid var(--stroke);
  transition:color .2s, border-color .2s;
}
.dev2-projects a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.dev2-projects span{color:var(--ink-3);font-size:12px;letter-spacing:.02em}

.dev2-links{
  list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px;flex:1;
}
.dev2-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;padding:5px 10px;border-radius:6px;
  border:1px solid var(--stroke);background:var(--panel-2);
  color:var(--ink-2);
  text-decoration:none;
  transition:all .2s cubic-bezier(.22,.9,.24,1);
}
.dev2-link-ico{color:var(--ink-3);display:flex;align-items:center;flex:none;
  transition:color .2s;
}
.dev2-link:hover{
  background:var(--accent-soft);
  border-color:var(--accent);color:var(--ink);
  transform:translateY(-1px);
}
.dev2-link:hover .dev2-link-ico{color:var(--accent)}
.dev2-link-name{font-weight:500}
.dev2-link-url{
  color:var(--ink-3);font-size:11px;
  font-family:'SFMono-Regular','Menlo',monospace;
}
.dev2-link--pending{
  border-style:dashed;border-color:var(--stroke-2);
  color:var(--ink-3);
  background:transparent;
}
.dev2-link--pending .dev2-link-name{font-style:italic;font-weight:400}
.dev2-link--pending:hover{
  background:rgba(255,255,255,.04);border-color:var(--stroke-2);
  color:var(--ink-3);transform:none;
}
.dev2-link--pending:hover .dev2-link-ico{color:var(--ink-3)}

/* ---------- 提示卡片 ---------- */
.dev-note{
  margin-top:28px;display:flex;gap:16px;
  padding:16px 20px;border-radius:var(--r-md);
  background:linear-gradient(135deg, rgba(95,208,230,.08), rgba(216,30,79,.04));
  border:1px solid var(--stroke);
}
.dev-note-mark{
  flex:none;width:28px;height:28px;border-radius:50%;
  background:var(--brand-2);color:#0c0c0c;
  display:grid;place-items:center;font-weight:700;font-size:15px;
}
.dev-note-body{font-size:13.5px;line-height:1.7;color:var(--ink-2)}
.dev-note-body b{color:var(--ink);font-weight:600}
.dev-note-body code{
  font-size:12px;background:rgba(0,0,0,.4);padding:1px 6px;border-radius:4px;
  border:1px solid var(--stroke);color:var(--ink);
}

/* ---------- 项目脉络时间轴 ---------- */
.dev-flow{padding:60px 0 80px;border-top:1px solid var(--stroke);
  background:linear-gradient(180deg, transparent, rgba(0,0,0,.15) 100%);
}
.dev-flow-head{margin-bottom:36px}
.dev-flow-track{
  display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1.2fr;gap:12px;
  align-items:stretch;
}
@media(max-width:1100px){
  .dev-flow-track{grid-template-columns:1fr 1fr;gap:18px}
  .dev-flow-arrow{display:none}
}
@media(max-width:600px){.dev-flow-track{grid-template-columns:1fr}}

.dev-flow-step{
  position:relative;
  border-radius:var(--r-md);
  border:1px solid var(--stroke);
  background:var(--panel);
  padding:18px 18px 18px 20px;
  display:flex;flex-direction:column;gap:8px;
  transition:transform .7s cubic-bezier(.22,.9,.24,1) var(--d,0ms),
             border-color .35s, opacity .7s cubic-bezier(.22,.9,.24,1) var(--d,0ms);
}
.dev-flow-step.in{transform:none}
.dev-flow-step:hover{transform:translateY(-3px);border-color:var(--stroke-2)}
.dev-flow-step--full{
  background:linear-gradient(135deg, rgba(216,30,79,.14), rgba(95,208,230,.06));
  border-color:rgba(216,30,79,.3);
}
.dev-flow-step--1{--accent:#d81e3a}
.dev-flow-step--2{--accent:#5fd0e6}
.dev-flow-step--3{--accent:#7be07b}
.dev-flow-step--4{--accent:#e88fff}

.dev-flow-num{
  position:absolute;top:-12px;left:16px;
  font-family:'Times New Roman',serif;
  font-size:18px;font-style:italic;color:var(--accent);
  background:var(--bg);padding:0 8px;
}
.dev-flow-tag{
  font-size:11.5px;color:var(--ink-3);
  letter-spacing:.05em;text-transform:uppercase;
}
.dev-flow-title{
  font-family:var(--font-display,'Times New Roman',serif);
  font-size:22px;font-weight:600;letter-spacing:-.02em;
  margin:0;color:var(--ink);
}
.dev-flow-desc{font-size:13.5px;color:var(--ink-2);line-height:1.65;margin:0}

.dev-flow-arrow{
  align-self:center;color:var(--ink-3);
  font-size:22px;
  animation:flow 1.6s ease-in-out infinite alternate;
}
@keyframes flow{
  from{transform:translateX(0);opacity:.5}
  to{transform:translateX(4px);opacity:1}
}

/* ---------- 联系区 ---------- */
.dev-contact{padding:60px 0 80px;border-top:1px solid var(--stroke)}
.dev-contact-head{margin-bottom:30px}
.dev-contact-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
@media(max-width:880px){.dev-contact-grid{grid-template-columns:1fr}}
.dev-contact-card{
  background:var(--panel);border:1px solid var(--stroke);
  border-radius:var(--r-md);padding:24px 22px;
  transition:transform .7s cubic-bezier(.22,.9,.24,1) var(--d,0ms),
             border-color .35s, background .35s,
             opacity .7s cubic-bezier(.22,.9,.24,1) var(--d,0ms);
}
.dev-contact-card.in{transform:none}
.dev-contact-card:hover{
  transform:translateY(-3px);
  border-color:rgba(216,30,79,.35);
  background:linear-gradient(180deg, var(--panel) 0%, rgba(216,30,79,.06) 100%);
}
.dev-contact-icon{
  display:inline-grid;place-items:center;
  width:46px;height:46px;border-radius:12px;
  background:rgba(216,30,79,.1);color:var(--brand-2);
  margin-bottom:14px;
  transition:transform .35s cubic-bezier(.22,.9,.24,1);
}
.dev-contact-card:hover .dev-contact-icon{transform:rotate(-8deg) scale(1.05)}
.dev-contact-card h3{
  font-family:var(--font-display,'Times New Roman',serif);
  font-size:19px;font-weight:600;letter-spacing:-.02em;
  margin:0 0 6px;color:var(--ink);
}
.dev-contact-card p{font-size:13.5px;line-height:1.7;color:var(--ink-2);margin:0}
.dev-contact-card a{color:var(--brand-2);text-decoration:none;
  border-bottom:1px solid rgba(216,30,79,.3);
  transition:border-color .2s;
}
.dev-contact-card a:hover{border-bottom-color:var(--brand-2)}

.dev-sign{
  margin-top:48px;padding-top:24px;
  border-top:1px dashed var(--stroke);
  display:flex;align-items:center;justify-content:center;gap:18px;
  flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);letter-spacing:.04em;
}
.dev-sign-heart{
  color:var(--brand);
  display:inline-block;
  animation:heartBeat 1.6s ease-in-out infinite;
}
@keyframes heartBeat{
  0%,100%{transform:scale(1)}
  50%{transform:scale(1.25)}
}
.dev-sign-divider{color:var(--ink-3);opacity:.5}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* ============================================================
   首页 ·「两个客户端」双子展示
   ------------------------------------------------------------
   两个项目等权并列：同一套卡片结构、同一个字号与间距，
   只靠顶部一段极细的强调线区分身份，不存在先后或主次。
   ============================================================ */
.twins{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch}
.twins>.twin:nth-child(1){--tw:var(--brand);--tw-soft:var(--brand-soft);--tw-line:rgba(216,30,79,.35)}
.twins>.twin:nth-child(2){--tw:var(--violet);--tw-soft:rgba(142,124,255,.16);--tw-line:rgba(142,124,255,.35)}

.twin{
  position:relative;display:flex;flex-direction:column;
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:var(--panel);padding:28px 26px 24px;transition:.25s;
}
/* 身份标记：一条等长的细线，两边长度完全一致 */
.twin::before{
  content:"";position:absolute;left:26px;top:-1px;width:64px;height:2px;
  background:var(--tw);border-radius:2px;opacity:.85;
}
.twin:hover{border-color:var(--stroke-2);background:var(--panel-2);transform:translateY(-3px)}

.twin-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.twin-mark{
  width:46px;height:46px;border-radius:14px;flex:none;display:grid;place-items:center;
  font-size:19px;line-height:1;background:var(--tw-soft);border:1px solid var(--tw-line);color:var(--tw);
}
.twin-id{min-width:0}
.twin-name{font-size:19px;letter-spacing:-.02em;display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.twin-name em{font-style:normal;font-size:12px;font-weight:500;color:var(--ink-2);
  border:1px solid var(--stroke);border-radius:999px;padding:2px 8px;letter-spacing:.02em}
.twin-role{font-size:12.5px;color:var(--ink-3);margin-top:4px}
.twin-lead{color:var(--ink-2);font-size:14.5px;margin-bottom:16px}

.twin-list{list-style:none;display:grid;gap:0;margin-bottom:20px}
.twin-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;
  padding:12px 0;border-top:1px dashed var(--stroke)}
.twin-list li:first-child{border-top:none;padding-top:2px}
.twin-ico{
  width:26px;height:26px;border-radius:8px;flex:none;display:grid;place-items:center;
  margin-top:1px;font-size:12.5px;line-height:1;
  background:var(--tw-soft);border:1px solid var(--tw-line);color:var(--tw);
}
.twin-list b{display:block;font-size:14.5px;color:var(--ink);margin-bottom:3px}
.twin-list span{font-size:13.5px;color:var(--ink-2);line-height:1.68}
.twin-list code{background:rgba(255,255,255,.07);padding:1px 5px;border-radius:5px;font-size:12px}

.twin-foot{
  display:flex;gap:7px;flex-wrap:wrap;margin-top:auto;
  padding-top:16px;border-top:1px solid var(--stroke);
}
.twin-foot .pill{font-size:12px;padding:3px 10px}
.twin-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

/* 下载/版本支持：并列的版本清单 */
.vlist{list-style:none;display:grid;gap:8px;margin-top:16px}
.vlist li{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  border:1px solid var(--stroke);border-radius:12px;background:rgba(255,255,255,.03);
  padding:10px 14px;font-size:13.5px;transition:.2s;
}
.vlist li:hover{border-color:var(--stroke-2);background:var(--panel-2)}
.vlist li b{font-size:15px;min-width:64px;letter-spacing:-.01em}
.vlist li .lds{color:var(--ink-3);font-size:12.5px}
.vlist li a{margin-left:auto;font-size:12.5px;color:var(--brand-2);font-weight:600}
.vlist li a:hover{text-decoration:underline}

@media(max-width:1000px){
  .twins{grid-template-columns:1fr;gap:18px}
}
@media(max-width:720px){
  .twin{padding:24px 20px 20px}
  .twin::before{left:20px}
  .vlist li a{margin-left:0}
}