/* ══════════════════════════════════════════════════════
   Glass Blue · 设计系统 CSS（v1.0 · 2026-08 提取）
   来源：玻璃卡片 + 蓝色渐变设计语言，浅/深双主题
   依赖：无（系统字体栈；Space Grotesk 可选，缺失自动回退）
   用法：<link rel="stylesheet" href="glass-blue.css">
        配合 glass-blue.js（主题/阅读设置/滚动渐入）
   本文件不含任何项目品牌字样，可自由复用与改名。
   ══════════════════════════════════════════════════════ */
/* ── 第 1 部分：基础框架与阅读器外壳（主题切换/进度条/阅读设置）── */
:root{
  --bg:#f4f7fc;--ink:#0f172a;--ink2:#334155;--soft:#64748b;
  --line:rgba(15,23,42,.09);--blue:#2563eb;--blue-deep:#1d4ed8;--blue-soft:#eff6ff;
  --blue-line:#dbeafe;--green:#16a34a;
  --glass:rgba(255,255,255,.62);--glass-brd:rgba(255,255,255,.8);--glass-hi:rgba(255,255,255,.65);
  --quote-bg:linear-gradient(140deg,rgba(239,246,255,.92),rgba(255,255,255,.6) 45%,rgba(219,234,254,.75));
  --note-bg:linear-gradient(135deg,rgba(239,246,255,.9),rgba(255,255,255,.72));
  --glow1:rgba(37,99,235,.10);--glow2:rgba(96,165,250,.09);--glow3:rgba(37,99,235,.06);
  --grad-text:linear-gradient(90deg,#2563EB,#60A5FA);--grad-chip:linear-gradient(135deg,#2563EB,#3B82F6);--quote-mark:rgba(37,99,235,.15);
  --shadow:0 1px 2px rgba(0,0,0,.05);
  --shadow-lg:0 24px 70px rgba(37,99,235,.14);
  --shadow-hover:0 10px 25px -5px rgba(37,99,235,.06),0 4px 6px -4px rgba(0,0,0,.04);
  --fhead:"Space Grotesk","PingFang SC","Noto Sans SC",sans-serif;
  --rfs:15px;--rlh:1.85;--rpw:880px;
  --rff:-apple-system,"PingFang SC","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
[data-theme="dark"]{
  --bg:#0a111f;--ink:#eaf0fc;--ink2:#c3cee2;--soft:#8fa0bd;
  --line:rgba(255,255,255,.09);--blue:#3b82f6;--blue-deep:#60a5fa;--blue-soft:#14213b;
  --blue-line:#1e3a5f;--green:#34d399;
  --glass:rgba(20,30,52,.55);--glass-brd:rgba(255,255,255,.09);--glass-hi:rgba(255,255,255,.06);
  --quote-bg:linear-gradient(140deg,rgba(20,33,59,.88),rgba(17,26,44,.6) 45%,rgba(30,58,95,.55));
  --note-bg:linear-gradient(135deg,rgba(20,33,59,.8),rgba(17,26,44,.6));
  --glow1:rgba(59,130,246,.16);--glow2:rgba(59,130,246,.10);--glow3:rgba(37,99,235,.09);
  --grad-text:linear-gradient(90deg,#7DD3FC,#93C5FD);--grad-chip:linear-gradient(135deg,#1D4ED8,#2563EB);--quote-mark:rgba(96,165,250,.3);
  --shadow:0 1px 2px rgba(0,0,0,.3);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --shadow-hover:0 10px 25px -5px rgba(37,99,235,.18),0 4px 6px -4px rgba(0,0,0,.3);
}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink2);font-family:var(--rff);font-size:var(--rfs);line-height:var(--rlh)}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(900px 520px at 12% -6%,var(--glow1),transparent 60%),radial-gradient(820px 480px at 94% 2%,var(--glow2),transparent 62%),radial-gradient(1100px 640px at 50% 112%,var(--glow3),transparent 66%)}
#progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:120;border-radius:0 4px 4px 0;background:var(--grad-chip);box-shadow:0 0 10px rgba(37,99,235,.45)}
.page{max-width:var(--rpw);margin:0 auto;padding:0 24px 72px}
.hl{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
strong{color:var(--ink);font-weight:700}
/* 滚动渐入(brand motion: y30→0, .6s ease-out) */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s ease-out,transform .6s ease-out}
.reveal.in{opacity:1;transform:none}
/* 悬浮呼吸(brand float: ±10px 7s) */
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
/* 主题切换(毛玻璃胶囊) */
.theme-tg{position:fixed;top:calc(16px + env(safe-area-inset-top));right:calc(16px + env(safe-area-inset-right));z-index:99;border:1px solid var(--glass-brd);background:var(--glass);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);color:var(--blue);border-radius:999px;padding:7px 16px;font-size:13px;cursor:pointer;box-shadow:var(--shadow);font-family:inherit;transition:transform .3s}
.theme-tg:hover{transform:translateY(-1px)}
/* 阅读设置 */
.reader-fab{position:fixed;bottom:calc(22px + env(safe-area-inset-bottom));right:calc(18px + env(safe-area-inset-right));z-index:100;width:48px;height:48px;border-radius:50%;background:var(--grad-chip);color:#fff;border:none;font-size:16px;font-weight:800;cursor:pointer;box-shadow:0 16px 36px rgba(37,99,235,.22);font-family:inherit;transition:transform .3s,box-shadow .3s}
.reader-fab:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(37,99,235,.3)}
.reader-panel{position:fixed;bottom:82px;right:18px;z-index:100;width:264px;background:var(--glass);backdrop-filter:blur(28px) saturate(180%);-webkit-backdrop-filter:blur(28px) saturate(180%);border:1px solid var(--glass-brd);border-radius:20px;box-shadow:var(--shadow-lg);padding:18px;display:none}
.reader-panel.open{display:block;animation:rise .35s cubic-bezier(.22,.7,.3,1)}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.rp-label{font-size:12px;color:var(--soft);margin:12px 0 7px;font-weight:700;letter-spacing:.06em}
.rp-label:first-child{margin-top:0}
.rp-row{display:flex;gap:8px;align-items:center}
.rp-btn{flex:1;border:1px solid var(--line);background:transparent;border-radius:11px;padding:8px 0;font-size:13px;color:var(--ink2);cursor:pointer;font-family:inherit;line-height:1.4;transition:all .25s}
.rp-btn:hover{border-color:var(--blue-line);background:var(--blue-soft)}
.rp-btn.on{background:var(--blue-soft);border-color:var(--blue-line);color:var(--blue-deep);font-weight:700}
.rp-val{min-width:46px;text-align:center;color:var(--blue-deep);font-weight:800;font-size:14px}
/* 胶囊徽章 */
.pill{display:inline-block;border-radius:999px;padding:4px 14px;font-size:12.5px;border:1px solid var(--blue-line);line-height:1.7}
.pill.blue{background:var(--blue-soft);color:var(--blue-deep);border-color:var(--blue-line);font-weight:700}
.pill.line{background:var(--glass);backdrop-filter:blur(12px);color:var(--soft);border-color:var(--glass-brd)}
/* Hero(brand: 交错入场+轨道光点) */
.hero{max-width:880px;margin:0 auto;padding:88px 24px 44px;text-align:center;position:relative}
.hero>:not(.hero-orbit){animation:heroIn .9s ease-out both}
.hero h1{animation-delay:.15s}.hero .sub{animation-delay:.35s}.hero .pills{animation-delay:.55s}
@keyframes heroIn{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.hero .brand{margin-bottom:28px;background:var(--glass);backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.hero h1{font-family:var(--fhead);font-size:52px;line-height:1.22;font-weight:800;color:#030712;margin:0 0 16px;text-wrap:balance;letter-spacing:-.02em}
[data-theme="dark"] .hero h1{color:#eaf0fc}
.hero .sub{color:var(--soft);font-size:15.5px;line-height:2.1;margin:0 0 26px}
.hero .pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.hero-orbit{position:absolute;border:1px dashed var(--blue-line);border-radius:50%;pointer-events:none}
.hero-orbit.o1{width:340px;height:340px;top:-80px;left:-90px;animation:orbitSlow 38s linear infinite}
.hero-orbit.o2{width:260px;height:260px;bottom:-40px;right:-60px;animation:orbitSlow 28s linear infinite reverse}
.hero-orbit i{position:absolute;top:-4px;left:50%;width:7px;height:7px;border-radius:50%;background:#67E8F9;box-shadow:0 0 10px rgba(103,232,249,.9)}
.hero-orbit.o2 i{background:#60A5FA;box-shadow:0 0 10px rgba(96,165,250,.9)}
@keyframes orbitSlow{to{transform:rotate(360deg)}}
/* 数据卡 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:880px;margin:10px auto 44px;padding:0 24px}
.stat{background:var(--glass);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid var(--glass-brd);border-radius:18px;padding:20px 12px;text-align:center;box-shadow:var(--shadow);transition:transform .35s,box-shadow .35s}
.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
/* 迭代说明卡 */
.vernotes{max-width:880px;margin:6px auto 30px;padding:0 24px}
.vn-card{background:var(--glass);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid var(--glass-brd);border-radius:20px;padding:22px 26px;box-shadow:var(--shadow-lg);text-align:left}
.vn-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.vn-head b{font-family:var(--fhead);font-size:16px;color:var(--ink)}
.vn-list{margin:0;padding-left:0;list-style:none}
.vn-list li{position:relative;padding:7px 0 7px 22px;font-size:13.5px;color:var(--ink2);line-height:1.75}
.vn-list li::before{content:"";position:absolute;left:4px;top:15px;width:7px;height:7px;border-radius:50%;background:var(--grad-chip);box-shadow:0 0 6px rgba(37,99,235,.45)}
.vn-list b{color:var(--blue-deep)}
.vn-old{margin-top:14px;border:none;border-top:1px dashed var(--blue-line);border-radius:0;padding:12px 0 0}
.vn-old summary{font-size:13px}
.vn-old p{margin:6px 0 0;font-size:12.5px;color:var(--soft);line-height:1.7}
.stat b{display:block;font-size:1.5rem;font-weight:800;font-family:var(--fhead);background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:12px;color:var(--soft)}
/* 章节标题 */
.chaphead{display:flex;align-items:center;gap:14px;margin:84px 0 28px}
.chap-no{flex:0 0 auto;min-width:54px;height:36px;border-radius:12px;background:var(--grad-chip);color:#fff;font-size:14px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 18px 40px rgba(37,99,235,.12);padding:0 8px;position:relative}
.chap-no::after{content:"";position:absolute;top:3px;right:3px;width:6px;height:6px;border-radius:50%;background:#67E8F9;box-shadow:0 0 8px rgba(103,232,249,.9)}
.chaptitle{font-size:26px;font-weight:800;color:var(--ink);margin:0;line-height:1.4;letter-spacing:-.01em}
.chap-ver{margin-left:auto;flex:0 0 auto;white-space:nowrap}
h2{font-size:18.5px;font-weight:800;color:var(--ink);margin:48px 0 15px;position:relative;padding-left:16px}
h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:5px;border-radius:3px;background:linear-gradient(180deg,#2563eb,#60a5fa);box-shadow:0 2px 8px rgba(37,99,235,.4)}
h3{font-size:16px;font-weight:700;color:var(--ink);margin:28px 0 10px}
p{margin:0 0 16px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line) 20%,var(--line) 80%,transparent);margin:56px 0}
.ref{color:var(--blue);font-size:.75em;font-weight:700}
.pending{color:#15803d;font-size:.85em;border-bottom:1px dashed #15803d}
[data-theme="dark"] .pending{color:#34d399;border-color:#34d399}
/* 提示块 */
.note{background:var(--note-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--blue-line);border-radius:18px;padding:16px 20px;margin:24px 0;font-size:14px;color:var(--ink2);box-shadow:0 4px 16px rgba(37,99,235,.06)}
.note p{margin:4px 0}
/* 表格 */
.tblwrap{border:1px solid var(--glass-brd);border-radius:18px;overflow:hidden;margin:24px 0;background:var(--glass);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);box-shadow:var(--shadow);overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{background:var(--blue-soft);color:var(--blue-deep);font-weight:700;text-align:left;padding:12px 15px}
td{padding:11px 15px;border-top:1px solid var(--line);color:var(--ink2);vertical-align:top;line-height:1.75;transition:background .25s}
tbody tr:hover td{background:rgba(37,99,235,.045)}
tbody tr:last-child td{border-bottom:none}
ul,ol{margin:0 0 16px;padding-left:22px}
li{margin:7px 0}
/* 金句块 */
.goldsay{position:relative;margin:36px 0;padding:38px 34px 32px;border-radius:24px;text-align:center;background:var(--quote-bg);border:1px solid var(--blue-line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 10px 36px rgba(37,99,235,.10),inset 0 1px 0 var(--glass-hi)}
.goldsay::before{content:"“";position:absolute;top:0;left:14px;font-size:56px;font-weight:800;color:var(--quote-mark);line-height:1}
.goldsay span{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800;line-height:1.9}
/* 图表卡片 */
.chart{background:var(--glass);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border:1px solid var(--glass-brd);border-radius:24px;padding:30px 24px 22px;margin:34px 0;box-shadow:var(--shadow-lg);transition:transform .35s,box-shadow .35s}
.chart-cap{display:flex;align-items:center;justify-content:center;gap:12px;color:var(--blue-deep);font-size:13px;font-weight:800;letter-spacing:.2em;margin-bottom:22px}
.chart-cap::before,.chart-cap::after{content:"";width:28px;height:1px;background:linear-gradient(90deg,transparent,var(--blue))}
.chart-cap::after{background:linear-gradient(90deg,var(--blue),transparent)}
.chart-note{text-align:center;color:var(--soft);font-size:12.5px;margin-top:18px;padding-top:14px;border-top:1px dashed var(--blue-line)}
/* 三层递进(渐变条金字塔) */
.py-row{display:flex;justify-content:center;margin:12px 0}
.py-bar{display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:15px;background:linear-gradient(120deg,rgba(239,246,255,.95),rgba(191,219,254,.65));border:1px solid var(--blue-line);box-shadow:0 5px 16px rgba(37,99,235,.10),inset 0 1px 0 rgba(255,255,255,.7);min-width:0}
[data-theme="dark"] .py-bar{background:linear-gradient(120deg,rgba(20,33,59,.9),rgba(30,58,95,.55));box-shadow:0 5px 16px rgba(0,0,0,.35)}
.py-bar b{color:var(--ink);font-size:14.5px;white-space:nowrap}
.py-d{color:var(--soft);font-size:12.5px}
/* AB 两面(苹果毛玻璃) */
.ab-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:stretch}
.ab-card{background:var(--glass);backdrop-filter:blur(28px) saturate(180%);-webkit-backdrop-filter:blur(28px) saturate(180%);border:1px solid var(--glass-brd);border-radius:22px;padding:22px 20px;box-shadow:var(--shadow),inset 0 1px 0 var(--glass-hi);transition:transform .35s,box-shadow .35s}
.ab-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.ab-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.ab-head b{font-size:16.5px;color:var(--ink);letter-spacing:-.01em}
.ab-role{margin:0 0 8px;font-size:13.5px;font-weight:700;color:var(--blue-deep)}
.ab-q{margin:0;font-size:13px;color:var(--ink2)}
.ab-x{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--soft);line-height:1.75}
.ab-xh{display:inline-block;margin-right:7px;padding:1px 9px;border-radius:999px;background:var(--blue-soft);color:var(--blue-deep);font-size:11px;font-weight:800;vertical-align:1px}
.ab-mid{display:flex;align-items:center;justify-content:center}
.ab-orb{position:relative;width:106px;height:106px;border-radius:50%;display:flex;align-items:center;justify-content:center;text-align:center;background:var(--glass);backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);border:1px solid var(--glass-brd);box-shadow:0 24px 70px rgba(37,99,235,.14),inset 0 1px 0 var(--glass-hi);animation:float 7s ease-in-out infinite}
.ab-orb::before{content:"";position:absolute;inset:-9px;border-radius:50%;background:conic-gradient(from 0deg,rgba(37,99,235,.95),rgba(147,197,253,.4),rgba(37,99,235,.08),rgba(37,99,235,.95));-webkit-mask:radial-gradient(farthest-side,transparent calc(100% - 3px),#000 calc(100% - 2px));mask:radial-gradient(farthest-side,transparent calc(100% - 3px),#000 calc(100% - 2px));animation:spin 12s linear infinite;opacity:.85}
.ab-orb span{font-size:11.5px;font-weight:800;color:var(--blue-deep);line-height:1.65;letter-spacing:.1em}
@keyframes spin{to{transform:rotate(360deg)}}
/* 金句/章节序号数字字体 */
.goldsay::before{font-family:var(--fhead)}
/* 时间线(脉冲圆点+渐变竖线) */
.tl{position:relative;padding-left:28px}
.tl::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,transparent,var(--blue-line) 6%,var(--blue-line) 94%,transparent)}
.tl-item{position:relative;margin:0 0 15px}
.tl-dot{position:absolute;left:-25px;top:15px;width:10px;height:10px;border-radius:50%;background:var(--blue);animation:pulse 3s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px var(--blue-soft),0 0 10px rgba(37,99,235,.35)}50%{box-shadow:0 0 0 7px var(--blue-soft),0 0 18px rgba(37,99,235,.55)}}
.tl-card{background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--glass-brd);border-radius:14px;padding:11px 16px;box-shadow:var(--shadow);transition:transform .3s}
.tl-card:hover{transform:translateY(-1px)}
.tl-year{display:inline-block;font-size:11.5px;font-weight:800;font-family:var(--fhead);color:#fff;background:var(--grad-chip);border-radius:999px;padding:1px 11px;margin-bottom:5px;box-shadow:0 3px 8px rgba(37,99,235,.25)}
.tl-card b{display:block;font-size:14px;color:var(--ink)}
.tl-card p{margin:2px 0 0;font-size:12.5px;color:var(--soft)}
/* 二分账 */
.ledger-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ledger{background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--glass-brd);border-radius:20px;padding:20px 18px;box-shadow:var(--shadow),inset 0 1px 0 var(--glass-hi)}
.ledger ul{margin:12px 0;padding-left:20px;font-size:13.5px}
.ledger li{margin:6px 0}
.lg-go{display:inline-flex;align-items:center;margin-top:12px;padding:7px 18px;border-radius:999px;background:var(--grad-chip);color:#fff;font-size:13px;font-weight:800;box-shadow:0 18px 42px rgba(37,99,235,.22)}
/* 步骤条(电闸三原则) */
.steps{display:grid;gap:13px}
.step{display:flex;gap:15px;align-items:flex-start;background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-brd);border-radius:17px;padding:16px 18px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.step:hover{transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.step-no{flex:0 0 auto;width:36px;height:36px;border-radius:12px;background:var(--grad-chip);color:#fff;font-weight:800;font-size:15px;font-family:var(--fhead);display:flex;align-items:center;justify-content:center;box-shadow:0 18px 40px rgba(37,99,235,.12)}
.step-bd b{display:block;font-size:14.5px;color:var(--ink)}
.step-bd p{margin:3px 0 0;font-size:13px;color:var(--soft)}
details{margin:34px 0 0;border:1px solid var(--glass-brd);border-radius:18px;padding:16px 20px;font-size:13px;color:var(--soft);background:var(--glass);backdrop-filter:blur(14px)}
summary{cursor:pointer;color:var(--blue-deep);font-weight:700}
.appx{border:none;padding-left:0;color:var(--blue-deep);font-size:14px}
/* 收尾 */
.finale{max-width:880px;margin:64px auto 0;padding:0 24px}
.finale-box{background:var(--quote-bg);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--blue-line);border-radius:26px;padding:54px 30px;text-align:center;box-shadow:0 14px 48px rgba(37,99,235,.13),inset 0 1px 0 var(--glass-hi)}
.finale-box p{font-size:18px;font-weight:800;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:2.2;margin:0}
.finale-box .au{margin-top:24px;font-size:12.5px;color:#5c6b80;font-weight:400;letter-spacing:.1em}
[data-theme="dark"] .finale-box .au{color:#8fa0bd}
.footer{text-align:center;color:#5c6b80;font-size:12px;padding:28px 16px 44px}
.footer img{display:block;height:26px;margin:0 auto 16px;opacity:.9}
[data-theme="dark"] .footer{color:#8fa0bd}
[data-theme="dark"] .footer img{display:none}
/* 字号/行距随阅读设置缩放 */
p,li,.note{font-size:var(--rfs)}
.goldsay span{font-size:calc(var(--rfs) + 2px)}
.hero,.stats,.finale,.footer{max-width:calc(var(--rpw) + 40px)}
/* 防横向漂移:轨道装饰不越出视口 */
html,body{overflow-x:hidden;max-width:100vw}
/* Pad 端(竖屏 iPad 及窄屏笔记本) */
@media(max-width:1024px){
.hero h1{font-size:40px}
.hero{padding:76px 20px 40px}
.stats{grid-template-columns:repeat(2,1fr)}
.ab-grid{grid-template-columns:1fr}
.ab-mid{padding:10px 0}
.ledger-grid{grid-template-columns:1fr}
.chaphead{margin:64px 0 24px}
}
/* 移动端 */
@media(max-width:768px){
.hero{overflow:hidden;padding:72px 18px 32px}
.hero-orbit{display:none}
.hero h1{font-size:30px}
.hero .sub{font-size:14px;line-height:1.95}
.page{padding:0 16px 56px}
.chaphead{margin:52px 0 20px;gap:10px;flex-wrap:wrap}
.chaptitle{font-size:20px}
.chap-ver{margin-left:0;white-space:normal}
h2{font-size:17.5px;margin:40px 0 13px}
.goldsay{padding:28px 20px 24px;margin:28px 0;border-radius:20px}
.chart{padding:24px 16px 18px;margin:26px 0;border-radius:20px}
.vn-card{padding:18px 16px;border-radius:16px}
.vernotes{padding:0 16px}
.note{padding:14px 16px}
.stats{padding:0 16px;gap:10px}
.finale{padding:0 16px}
.finale-box{padding:38px 20px;border-radius:22px}
.finale-box p{font-size:16px;line-height:2}
.reader-panel{right:12px;bottom:calc(74px + env(safe-area-inset-bottom));width:min(264px,calc(100vw - 24px))}
.theme-tg{top:calc(12px + env(safe-area-inset-top));right:calc(12px + env(safe-area-inset-right));padding:6px 12px;font-size:12px}
.reader-fab{bottom:calc(18px + env(safe-area-inset-bottom));right:calc(14px + env(safe-area-inset-right));width:44px;height:44px}
.py-bar{width:100% !important;flex-wrap:wrap}
.step{padding:14px;gap:12px}
.tl{padding-left:24px}
table{font-size:12.5px}
th,td{padding:9px 10px}
details{padding:14px 16px}
}
/* 小屏手机 */
@media(max-width:380px){
.hero h1{font-size:26px}
.chaptitle{font-size:18px}
.stat b{font-size:1.25rem}
.pill{font-size:11.5px;padding:3px 10px}
}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.ab-orb::before,.tl-dot{animation:none}}
/* ── 第 2 部分：页面组件库（导航/徽章/数据卡/试读卡/目录/条形图等）── */
:root{
  --bg:#f4f7fc;--ink:#0f172a;--ink2:#334155;--soft:#64748b;
  --line:rgba(15,23,42,.09);--blue:#2563eb;--blue-deep:#1d4ed8;--blue-soft:#eff6ff;
  --blue-line:#dbeafe;--green:#16a34a;
  --glass:rgba(255,255,255,.62);--glass-brd:rgba(255,255,255,.8);--glass-hi:rgba(255,255,255,.65);
  --quote-bg:linear-gradient(140deg,rgba(239,246,255,.92),rgba(255,255,255,.6) 45%,rgba(219,234,254,.75));
  --note-bg:linear-gradient(135deg,rgba(239,246,255,.9),rgba(255,255,255,.72));
  --glow1:rgba(37,99,235,.10);--glow2:rgba(96,165,250,.09);--glow3:rgba(37,99,235,.06);
  --grad-text:linear-gradient(90deg,#2563EB,#60A5FA);--grad-chip:linear-gradient(135deg,#2563EB,#3B82F6);--quote-mark:rgba(37,99,235,.15);
  --shadow:0 1px 2px rgba(0,0,0,.05);
  --shadow-lg:0 24px 70px rgba(37,99,235,.14);
  --shadow-hover:0 10px 25px -5px rgba(37,99,235,.06),0 4px 6px -4px rgba(0,0,0,.04);
  --fhead:"Space Grotesk","PingFang SC","Noto Sans SC",sans-serif;
  --rfs:15px;--rlh:1.85;--rpw:880px;
  --rff:-apple-system,"PingFang SC","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
[data-theme="dark"]{
  --bg:#0a111f;--ink:#eaf0fc;--ink2:#c3cee2;--soft:#8fa0bd;
  --line:rgba(255,255,255,.09);--blue:#3b82f6;--blue-deep:#60a5fa;--blue-soft:#14213b;
  --blue-line:#1e3a5f;--green:#34d399;
  --glass:rgba(20,30,52,.55);--glass-brd:rgba(255,255,255,.09);--glass-hi:rgba(255,255,255,.06);
  --quote-bg:linear-gradient(140deg,rgba(20,33,59,.88),rgba(17,26,44,.6) 45%,rgba(30,58,95,.55));
  --note-bg:linear-gradient(135deg,rgba(20,33,59,.8),rgba(17,26,44,.6));
  --glow1:rgba(59,130,246,.16);--glow2:rgba(59,130,246,.10);--glow3:rgba(37,99,235,.09);
  --grad-text:linear-gradient(90deg,#7DD3FC,#93C5FD);--grad-chip:linear-gradient(135deg,#1D4ED8,#2563EB);--quote-mark:rgba(96,165,250,.3);
  --shadow:0 1px 2px rgba(0,0,0,.3);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --shadow-hover:0 10px 25px -5px rgba(37,99,235,.18),0 4px 6px -4px rgba(0,0,0,.3);
}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink2);font-family:var(--rff);font-size:var(--rfs);line-height:var(--rlh)}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(900px 520px at 12% -6%,var(--glow1),transparent 60%),radial-gradient(820px 480px at 94% 2%,var(--glow2),transparent 62%),radial-gradient(1100px 640px at 50% 112%,var(--glow3),transparent 66%)}
#progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:120;border-radius:0 4px 4px 0;background:var(--grad-chip);box-shadow:0 0 10px rgba(37,99,235,.45)}
.page{max-width:var(--rpw);margin:0 auto;padding:0 24px 72px}
.hl{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
strong{color:var(--ink);font-weight:700}
.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s ease-out,transform .6s ease-out}
.reveal.in{opacity:1;transform:none}
/* 吸顶导航 */
.topnav{position:sticky;top:0;z-index:110;display:flex;align-items:center;gap:6px;padding:10px 16px;background:var(--glass);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);border-bottom:1px solid var(--glass-brd);overflow-x:auto;scrollbar-width:none}
.topnav::-webkit-scrollbar{display:none}
.topnav .brand{flex:none;font-family:var(--fhead);font-size:13px;font-weight:800;color:var(--blue-deep);padding-right:10px;white-space:nowrap}
.topnav a{flex:none;font-size:12.5px;color:var(--soft);text-decoration:none;padding:5px 12px;border-radius:999px;border:1px solid transparent;white-space:nowrap;transition:all .25s}
.topnav a:hover{color:var(--blue-deep);background:var(--blue-soft);border-color:var(--blue-line)}
.topnav .sp{flex:1}
.theme-tg{flex:none;border:1px solid var(--glass-brd);background:var(--glass);color:var(--blue);border-radius:999px;padding:5px 13px;font-size:12.5px;cursor:pointer;font-family:inherit;white-space:nowrap}
/* 阅读设置 */
.reader-fab{position:fixed;bottom:calc(22px + env(safe-area-inset-bottom));right:calc(18px + env(safe-area-inset-right));z-index:100;width:48px;height:48px;border-radius:50%;background:var(--grad-chip);color:#fff;border:none;font-size:16px;font-weight:800;cursor:pointer;box-shadow:0 16px 36px rgba(37,99,235,.22);font-family:inherit;transition:transform .3s,box-shadow .3s}
.reader-fab:hover{transform:translateY(-2px)}
.reader-panel{position:fixed;bottom:82px;right:18px;z-index:100;width:264px;background:var(--glass);backdrop-filter:blur(28px) saturate(180%);-webkit-backdrop-filter:blur(28px) saturate(180%);border:1px solid var(--glass-brd);border-radius:20px;box-shadow:var(--shadow-lg);padding:18px;display:none}
.reader-panel.open{display:block;animation:rise .35s cubic-bezier(.22,.7,.3,1)}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.rp-label{font-size:12px;color:var(--soft);margin:12px 0 7px;font-weight:700;letter-spacing:.06em}
.rp-label:first-child{margin-top:0}
.rp-row{display:flex;gap:8px;align-items:center}
.rp-btn{flex:1;border:1px solid var(--line);background:transparent;border-radius:11px;padding:8px 0;font-size:13px;color:var(--ink2);cursor:pointer;font-family:inherit;line-height:1.4;transition:all .25s}
.rp-btn:hover{border-color:var(--blue-line);background:var(--blue-soft)}
.rp-btn.on{background:var(--blue-soft);border-color:var(--blue-line);color:var(--blue-deep);font-weight:700}
.rp-val{min-width:46px;text-align:center;color:var(--blue-deep);font-weight:800;font-size:14px}
.pill{display:inline-block;border-radius:999px;padding:4px 14px;font-size:12.5px;border:1px solid var(--blue-line);line-height:1.7}
.pill.blue{background:var(--blue-soft);color:var(--blue-deep);border-color:var(--blue-line);font-weight:700}
.pill.line{background:var(--glass);backdrop-filter:blur(12px);color:var(--soft);border-color:var(--glass-brd)}
/* Hero */
.hero{max-width:calc(var(--rpw) + 40px);margin:0 auto;padding:78px 24px 44px;text-align:center;position:relative}
.hero>*{animation:heroIn .9s ease-out both}
.hero h1{animation-delay:.1s}.hero .sub{animation-delay:.3s}.hero .pills{animation-delay:.5s}
@keyframes heroIn{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.hero h1{font-family:var(--fhead);font-size:48px;line-height:1.25;font-weight:800;color:#030712;margin:0 0 16px;text-wrap:balance;letter-spacing:-.02em}
[data-theme="dark"] .hero h1{color:#eaf0fc}
.hero .sub{color:var(--soft);font-size:15.5px;line-height:2.1;margin:0 0 26px}
.hero .pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.vn-head{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.vn-head b{font-family:var(--fhead);font-size:16px;color:var(--ink)}
.vn-list{margin:0;padding-left:0;list-style:none}
.vn-list li{padding:7px 0;font-size:13.5px;color:var(--ink2);line-height:1.75}
.vn-list b{color:var(--blue-deep)}
/* 数据卡 */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(128px,1fr));gap:14px;margin:18px 0 44px;padding:0 24px;max-width:calc(var(--rpw) + 40px);margin-left:auto;margin-right:auto}
.stat{background:var(--glass);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid var(--glass-brd);border-radius:18px;padding:20px 12px;text-align:center;box-shadow:var(--shadow);transition:transform .35s,box-shadow .35s}
.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.stat b{display:block;font-size:1.35rem;font-weight:800;font-family:var(--fhead);background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:12px;color:var(--soft)}
/* 章节 */
section{padding-top:64px}
h2{display:flex;align-items:center;gap:14px;font-size:22px;font-weight:800;color:var(--ink);margin:0 0 8px}
.num-badge{flex:none;width:38px;height:38px;border-radius:12px;background:var(--grad-chip);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:800;font-family:var(--fhead);box-shadow:0 8px 20px rgba(37,99,235,.28);position:relative}
.num-badge::after{content:"";position:absolute;top:3px;right:3px;width:6px;height:6px;border-radius:50%;background:#67E8F9;box-shadow:0 0 8px rgba(103,232,249,.9)}
.sec-sub{font-size:.95rem;color:var(--soft);margin:0 0 26px}
h3{font-size:17px;font-weight:800;color:var(--ink);margin:34px 0 12px;position:relative;padding-left:16px}
h3::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:3px;background:linear-gradient(180deg,#2563eb,#60a5fa);box-shadow:0 2px 8px rgba(37,99,235,.4)}
h4{font-size:.96rem;font-weight:700;color:var(--blue-deep);margin:20px 0 8px}
p{margin:0 0 14px}
/* 表格 */
.tblwrap{border:1px solid var(--glass-brd);border-radius:18px;overflow:hidden;margin:18px 0;background:var(--glass);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);box-shadow:var(--shadow);overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{background:var(--blue-soft);color:var(--blue-deep);font-weight:700;text-align:left;padding:12px 15px}
td{padding:11px 15px;border-top:1px solid var(--line);color:var(--ink2);vertical-align:top;line-height:1.75}
tbody tr:hover td{background:rgba(37,99,235,.045)}
ul,ol{margin:0 0 16px;padding-left:22px}
li{margin:7px 0}
/* 金句块 */
.goldsay{position:relative;margin:36px 0;padding:38px 34px 32px;border-radius:24px;text-align:center;background:var(--quote-bg);border:1px solid var(--blue-line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 10px 36px rgba(37,99,235,.10),inset 0 1px 0 var(--glass-hi)}
.goldsay::before{content:"“";position:absolute;top:0;left:14px;font-size:56px;font-weight:800;color:var(--quote-mark);line-height:1;font-family:var(--fhead)}
.goldsay span{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800;line-height:1.9}
.goldsay span small{display:block;font-size:.72em;font-weight:400;color:var(--soft);-webkit-text-fill-color:var(--soft);margin-top:10px;letter-spacing:.05em}
/* 提示块 */
.note{background:var(--note-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--blue-line);border-radius:18px;padding:18px 22px;margin:24px 0;font-size:14px;color:var(--ink2);box-shadow:0 4px 16px rgba(37,99,235,.06)}
.note p{margin:4px 0}
.note strong{color:var(--blue-deep)}
/* 目录 */
.toc{display:grid;gap:12px}
.part{background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--glass-brd);border-radius:16px;padding:18px 22px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.part:hover{transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.part .pt{display:flex;align-items:center;gap:10px;font-weight:700;font-size:.97rem;color:var(--ink);margin-bottom:8px;flex-wrap:wrap}
.part .badge{flex:none;font-size:.72rem;font-weight:700;color:#fff;background:var(--grad-chip);border-radius:9999px;padding:3px 12px}
.part .badge.g{background:linear-gradient(135deg,#0891B2,#38BDF8)}
.part .pt b{color:var(--ink)}
.part .pt i{font-style:normal;color:var(--soft);font-size:.82rem;font-weight:400}
.part ul{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.part ul li{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap;padding:4px 0}
.part ul li .no{flex:none;font-family:var(--fhead);font-size:.72rem;font-weight:800;color:var(--blue-deep);background:var(--blue-soft);border:1px solid var(--blue-line);border-radius:6px;padding:1px 8px}
.part ul li b{color:var(--ink);font-weight:700;font-size:.93rem}
.part ul li i{font-style:normal;color:var(--soft);font-size:.8rem}
.part ul li.tool .no{color:#0e7490;border-color:#a5f3fc;background:rgba(165,243,252,.16)}
[data-theme="dark"] .part ul li.tool .no{color:#67E8F9;border-color:#155e75;background:rgba(21,94,117,.3)}
/* 样章 */
.sample{background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--glass-brd);border-radius:20px;padding:32px;margin:18px 0;box-shadow:var(--shadow-lg)}
.sample .st{font-size:1.18rem;font-weight:800;color:var(--ink)}
.sample .ss{display:flex;gap:8px;margin:10px 0 18px;flex-wrap:wrap}
.sample .ss span{font-size:.74rem;color:var(--blue-deep);background:var(--blue-soft);border:1px solid var(--blue-line);border-radius:9999px;padding:2.5px 12px;font-weight:700}
.sample p{font-size:.93rem;line-height:1.95}
.sample blockquote{border-left:3px solid #3B82F6;background:var(--blue-soft);border-radius:0 12px 12px 0;padding:14px 18px;margin:14px 0;font-size:.9rem;color:var(--ink2)}
/* 作者 */
.author{position:relative;background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--glass-brd);border-radius:18px;padding:26px 28px;margin:16px 0;box-shadow:var(--shadow);overflow:hidden}
.author::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,#2563EB,#60A5FA)}
.author .nm{font-size:1.14rem;font-weight:800;color:var(--ink)}
.author .tl{font-size:.82rem;color:var(--blue-deep);font-weight:600;margin:4px 0 12px}
.author ul{list-style:none;padding:0}
.author ul li{padding:4px 0 4px 22px;position:relative;font-size:.9rem}
.author ul li::before{content:"✓";position:absolute;left:2px;color:#3B82F6;font-weight:700;font-size:.85rem}
/* 步骤 */
.steps{display:grid;gap:13px;margin:18px 0}
.step{display:flex;gap:15px;align-items:flex-start;background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-brd);border-radius:17px;padding:16px 18px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.step:hover{transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.step-no{flex:0 0 auto;width:36px;height:36px;border-radius:12px;background:var(--grad-chip);color:#fff;font-weight:800;font-size:15px;font-family:var(--fhead);display:flex;align-items:center;justify-content:center;box-shadow:0 18px 40px rgba(37,99,235,.12)}
.step-bd b{display:block;font-size:14.5px;color:var(--ink)}
.step-bd p{margin:3px 0 0;font-size:13px;color:var(--soft)}
/* 销量条形图 */
.bars{background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--glass-brd);border-radius:20px;padding:24px 24px 18px;margin:18px 0;box-shadow:var(--shadow)}
.bar-row{display:grid;grid-template-columns:110px 1fr 78px;gap:12px;align-items:center;padding:9px 0;border-top:1px dashed var(--line)}
.bar-row:first-of-type{border-top:none}
.bar-row .bl{font-size:13px;font-weight:700;color:var(--ink);text-align:right}
.bar-track{display:grid;gap:5px}
.bar{height:11px;border-radius:6px;position:relative;overflow:hidden}
.bar.c{background:linear-gradient(90deg,#2563EB,#3B82F6);min-width:3px}
.bar.o{background:linear-gradient(90deg,#93C5FD,#BFDBFE);min-width:3px}
[data-theme="dark"] .bar.o{background:linear-gradient(90deg,#1E40AF,#3B82F6)}
.bar-row .bv{font-size:12px;color:var(--soft);line-height:1.6}
.bar-row .bv b{display:block;color:var(--blue-deep);font-family:var(--fhead)}
.bars .legend{display:flex;gap:16px;justify-content:center;font-size:12px;color:var(--soft);padding-top:12px;margin-top:6px;border-top:1px dashed var(--line)}
.legend i{display:inline-block;width:14px;height:9px;border-radius:5px;margin-right:5px;vertical-align:-1px}
/* 试读全文 */
.read{background:var(--glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--glass-brd);border-radius:20px;padding:34px 36px;margin:20px 0;box-shadow:var(--shadow-lg)}
.read .rt{font-size:1.22rem;font-weight:800;color:var(--ink)}
.read .ss{display:flex;gap:8px;margin:10px 0 20px;flex-wrap:wrap}
.read .ss span{font-size:.74rem;color:var(--blue-deep);background:var(--blue-soft);border:1px solid var(--blue-line);border-radius:9999px;padding:2.5px 12px;font-weight:700}
.read blockquote{border-left:3px solid #3B82F6;background:var(--blue-soft);border-radius:0 12px 12px 0;padding:14px 18px;margin:16px 0;font-size:.92rem;color:var(--ink2)}
.read blockquote p{margin:0}
.read .oli{padding-left:2px}
/* 时间线 */
.tl{position:relative;padding-left:28px;margin:18px 0}
.tl::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,transparent,var(--blue-line) 8%,var(--blue-line) 92%,transparent)}
.tl .item{position:relative;padding:0 0 20px}
.tl .item:last-child{padding-bottom:0}
.tl .item::before{content:"";position:absolute;left:-25px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--blue);animation:pulse 3s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px var(--blue-soft),0 0 10px rgba(37,99,235,.35)}50%{box-shadow:0 0 0 7px var(--blue-soft),0 0 18px rgba(37,99,235,.55)}}
.tl .item .t{font-weight:700;font-size:.93rem;color:var(--blue-deep)}
.tl .item p{font-size:.9rem;margin:3px 0 0}
details{margin:18px 0 0;border:1px solid var(--glass-brd);border-radius:18px;padding:16px 20px;font-size:13px;color:var(--soft);background:var(--glass);backdrop-filter:blur(14px)}
summary{cursor:pointer;color:var(--blue-deep);font-weight:700}
/* 页脚 */
.ft{margin-top:64px;padding:26px 16px 10px;border-top:1px solid var(--line);font-size:.8rem;color:var(--soft);text-align:center;line-height:1.9}
p,li,.note{font-size:var(--rfs)}
.goldsay span{font-size:calc(var(--rfs) + 2px)}
.hero,.ft{max-width:calc(var(--rpw) + 40px)}
html,body{overflow-x:hidden;max-width:100vw}
@media(max-width:1024px){
.hero h1{font-size:40px}
.hero{padding:64px 20px 40px}
.topnav a{padding:5px 9px}
}
@media(max-width:768px){
.hero{overflow:hidden;padding:60px 16px 32px}
.hero h1{font-size:30px}
.hero .sub{font-size:14px;line-height:1.95}
.page{padding:0 16px 56px}
h2{font-size:19px}
h3{font-size:16px}
.goldsay{padding:28px 20px 24px;margin:28px 0;border-radius:20px}
.sample{padding:24px 18px}
.note{padding:14px 16px}
.author{padding:20px 18px}
.step{padding:14px;gap:12px}
.bars{padding:18px 14px 12px}
.bar-row{grid-template-columns:84px 1fr 66px;gap:8px}
table{font-size:12.5px}
th,td{padding:9px 10px}
.reader-panel{right:12px;bottom:calc(74px + env(safe-area-inset-bottom));width:min(264px,calc(100vw - 24px))}
.reader-fab{bottom:calc(18px + env(safe-area-inset-bottom));right:calc(14px + env(safe-area-inset-right));width:44px;height:44px}
section{padding-top:48px}
}
@media(max-width:380px){
.hero h1{font-size:26px}
.stat b{font-size:1.2rem}
.pill{font-size:11.5px;padding:3px 10px}
}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.tl .item::before{animation:none}}
/* 打印：导出给出版社的 PDF */
@media print{
.topnav,.theme-tg,.reader-fab,.reader-panel,#progress{display:none!important}
.reveal{opacity:1!important;transform:none!important}
body{background:#fff;color:#1e293b}
body::before{display:none}
.hero h1,.stat b,.goldsay span,.hl{-webkit-text-fill-color:#1d4ed8;color:#1d4ed8}
.hero,.stats,.ft{max-width:880px}
section{page-break-inside:avoid;padding-top:40px}
.sample,.part,.author,.note,.tblwrap,.goldsay,.bars{box-shadow:none;border-color:#cbd5e1}
.tl .item::before{animation:none;box-shadow:none}
}
/* ══════════════════════════════════════════════════════
   11 · 打印保真层（转 PDF/纸面时自动实底化）
   经验教训：毛玻璃/渐变文字/装饰光点在 PDF 里会劣化，
   打印时统一转实色、去阴影、去装饰点。
   ══════════════════════════════════════════════════════ */
@media print{
  :root{--glass:#ffffff;--glass-brd:#d7e3f7;--quote-bg:#eef4ff;--grad-chip:#2563eb;--note-bg:#eff6ff;--quote-mark:rgba(37,99,235,.28);--soft:#4a5b74;--ink2:#243044}
  *{-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important;animation:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
  .topnav,.theme-tg,.reader-fab,.reader-panel,#progress{display:none!important}
  .reveal{opacity:1!important;transform:none!important}
  .stat,.chart,.read,.tblwrap,.part,.note,.goldsay,.bars,.step,.tl .item,.ledger,.ab-card,.py-bar,.vn-card{background-color:#fff!important;box-shadow:none!important}
  .read,.bars,.part,.note,.step,.tl .item,.ledger,.ab-card,.py-bar{border-color:#d7e3f7!important}
  .goldsay{background:#eef4ff!important;border:1.5px solid #bfdbfe!important}
  .goldsay::before{color:rgba(37,99,235,.28)!important}
  .goldsay span,.hl,.hero h1,.stat b{-webkit-text-fill-color:#1d4ed8!important;color:#1d4ed8!important;background:none!important}
  .goldsay span small,.goldsay small{color:#475569!important;-webkit-text-fill-color:#475569!important}
  th{background:#eff6ff!important;border-color:#dbe7f7!important}
  td{border-color:#e3ecf9!important}
  .pill.line{background:#fff!important;border-color:#d7e3f7!important}
  .badge,.num-badge,.step-no,.tl-year{background:#2563eb!important;box-shadow:none!important}
  h3::before,h2::before{background:#2563eb!important;box-shadow:none!important}
  .num-badge::after,.chap-no::after,.step-no::after{display:none!important}
  .note p,.note strong{color:#1f2c44!important}
  table,.chart,.goldsay,.bars,.step,.part,.note,.tl .item{break-inside:avoid}
}