/* ============================================================
   《战傀志》发行商提案 V2 · 样式
   混搭定案：variant2 条款纸卷骨架（主体）
           + variant3 hero 压场（解冻动效 / 读数条 / 竖排 scroll-cue）
   结构：tokens → 基线 → topbar → hero → 纸卷 → 条款节 → 页脚 → 动效 → 响应式
   ============================================================ */

:root {
  /* 桌面与英雄区（variant3 基因，融入 desk 色） */
  --desk: #14110b;           /* 桌面深墨 */
  --desk-hi: #1e1a11;
  --desk-text: #ece4d2;     /* 桌面米白 */
  --gold-desk: #cfa958;     /* 桌面上金 */
  --gold-hi: #f2d996;
  --gold-dim: rgba(207, 169, 88, .38);
  --seal-hi: #d96a4f;       /* 深底上的朱砂（机密标识用） */
  --desk-line: #2e2a20;
  /* 纸面（variant2 基因） */
  --paper: #f2ecda;         /* 纸面暖米 */
  --paper-2: #eae2cb;
  --paper-edge: #d9d0b4;
  --ink: #221c11;           /* 纸上墨字 */
  --ink-soft: #4d4534;
  --ink-faint: #6e6551;
  --gold-ink: #8a6b28;      /* 纸上可读金 */
  --seal: #a83a28;          /* 纸上朱砂章 */
  --rule: #d3c9ac;
  --mount-bg: #fdfaf0;      /* 装裱底 */
  /* 字体 */
  --serif: Georgia, "Noto Serif SC", "Songti SC", "SimSun", serif;
  --fang: "FangSong", "STFangsong", "Noto Serif SC", Georgia, serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: Consolas, "SFMono-Regular", "Courier New", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body {
  background: var(--desk);
  background-image: radial-gradient(ellipse 120% 60% at 50% -10%, var(--desk-hi) 0%, transparent 55%);
  color: var(--desk-text);
  font-family: var(--sans);
  font-size: 16px; line-height: 1.75; text-wrap: pretty;
}

/* ============ 双语机制 ============ */
body .en { display: none; }
body.en .zh { display: none; }
body.en .en { display: inline; }
body.en .en.block { display: block; }

/* ============ 无障碍基线 ============ */
.skip {
  position: fixed; top: -56px; left: 16px; z-index: 300;
  background: var(--gold-hi); color: var(--desk);
  padding: 10px 20px; font-size: 13.5px; text-decoration: none;
  transition: top .18s ease;
}
.skip:focus { top: 0; }
.vh {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
:focus-visible { outline: 2px solid var(--gold-hi); outline-offset: 3px; }
.paper :focus-visible { outline-color: var(--gold-ink); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  .hero-art img { animation: none !important; }
  .charge-bar i { width: 100% !important; animation: none !important; }
  .scroll-cue::after { animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

a { color: var(--gold-ink); }
.paper a, .deskfoot a { color: var(--gold-desk); }

/* ============ 顶部固定条 ============ */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; gap: 14px;
  padding: 12px 26px;
  background: rgba(20, 17, 11, .78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--desk-line);
}
.topbar .tb-brand {
  font-family: var(--serif); font-weight: 900; font-size: 16px;
  letter-spacing: .1em; color: var(--desk-text); margin-right: auto;
  white-space: nowrap;
}
.topbar .tb-brand small {
  font-family: var(--mono); font-weight: 400; font-size: 10.5px;
  color: #9d937c; letter-spacing: .18em; margin-left: 10px;
}
.conf-chip {
  font-family: var(--mono); font-size: 11.5px; font-weight: 700;
  color: var(--seal-hi); border: 1px solid var(--seal-hi);
  padding: 3px 12px; letter-spacing: .26em; text-indent: .26em;
  white-space: nowrap;
}
.lang {
  font-family: var(--mono); font-size: 13px; font-weight: 700;
  background: transparent; color: var(--gold-desk);
  border: 1px solid var(--gold-desk); padding: 8px 16px; cursor: pointer;
  letter-spacing: .08em; min-width: 52px; min-height: 44px;
}
.lang:hover { background: var(--gold-desk); color: var(--desk); }

/* ============ Hero：全屏 keyart 压场 + 解冻动效 ============ */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: hidden; isolation: isolate;
}
.hero-art { position: absolute; inset: 0; z-index: -1; }
.hero-art img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 30%;
  animation: thaw 2.4s ease .2s both;
}
@keyframes thaw {
  from { filter: grayscale(.8) brightness(.65) contrast(1.05); }
  to   { filter: none; }
}
.hero-shade {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg,
    rgba(20,17,11,.42) 0%, rgba(20,17,11,.08) 34%,
    rgba(20,17,11,.7) 72%, var(--desk) 100%);
}
.hero-inner { padding: 120px 26px 0; max-width: 1160px; margin: 0 auto; width: 100%; }
.hero-kicker {
  font-family: var(--mono); font-size: 12px; color: var(--gold-desk);
  letter-spacing: .32em; text-transform: uppercase; margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(72px, 13.5vw, 168px);
  line-height: .98; letter-spacing: .04em;
  text-shadow: 0 4px 40px rgba(0,0,0,.5);
}
.hero .hero-latin {
  font-family: var(--mono); font-size: clamp(13px, 1.9vw, 19px);
  color: var(--desk-text); letter-spacing: .42em; margin-top: 18px;
}
.hero .oneliner {
  font-family: var(--serif); font-size: clamp(19px, 2.8vw, 27px);
  line-height: 1.65; max-width: 21em; margin: 26px 0 0; font-weight: 600;
}
.hero .oneliner .en { font-weight: 400; }
.readout {
  margin-top: 54px; border-top: 1px solid var(--gold-dim);
  display: flex; flex-wrap: wrap;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .1em;
  color: var(--desk-text);
}
.readout div { padding: 14px 26px 44px 0; white-space: nowrap; }
.readout b { color: var(--gold-desk); font-weight: 700; }
.scroll-cue {
  position: absolute; bottom: 18px; right: 30px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .3em;
  color: #9d937c; writing-mode: vertical-rl;
}
.scroll-cue::after {
  content: ""; display: block; width: 1px; height: 44px;
  background: linear-gradient(var(--gold-desk), transparent);
  margin: 10px auto 0; animation: drip 2.2s ease-in-out infinite;
}
@keyframes drip {
  0% { transform: scaleY(0); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: top; }
  56% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============ 纸卷（桌面上的条款文书） ============ */
.paper {
  position: relative;
  max-width: 780px; margin: 10px auto 0;
  background: var(--paper);
  color: var(--ink);
  padding: 54px 58px 64px;
  box-shadow: 0 1px 0 rgba(255,252,240,.35) inset,
              0 18px 50px rgba(0,0,0,.55),
              0 42px 110px rgba(0,0,0,.45);
}
/* 纸顶装订金线：一粗一细 */
.paper::before {
  content: ""; position: absolute; top: 10px; left: 22px; right: 22px;
  border-top: 3px solid var(--gold-ink);
  border-bottom: 1px solid var(--gold-ink);
  height: 6px; pointer-events: none;
}
/* 全纸机密水印（大字斜排 · 平铺淡显）—— [MOD 2026-09-20] 替代 v2.8 骑缝章：去艺术印章形，改正式文书水印（委托方指令：big & formal, fade like 水印）；SVG 平铺覆纸不覆桌面/hero；双语双层随 body.en 切换；顶栏 conf-chip 与页脚水印行不变 */
.wm-tiles {
  position: absolute; inset: 0; z-index: 6; pointer-events: none;
}
.wm-tiles .wm-layer { position: absolute; inset: 0; background-repeat: repeat; }
.wm-tiles .wm-zh {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='640' height='460'%3E%3Ctext x='320' y='230' transform='rotate(-28 320 230)' text-anchor='middle' dominant-baseline='middle' font-family='Georgia,serif' font-size='72' font-weight='700' letter-spacing='18' fill='%23a83a28' fill-opacity='.08'%3E%E4%BB%85%E4%BE%9B%E5%86%85%E9%83%A8%E4%BD%BF%E7%94%A8%3C/text%3E%3C/svg%3E");
}
.wm-tiles .wm-en {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='640' height='460'%3E%3Ctext x='320' y='230' transform='rotate(-28 320 230)' text-anchor='middle' dominant-baseline='middle' font-family='Georgia,serif' font-size='46' font-weight='700' letter-spacing='9' fill='%23a83a28' fill-opacity='.08'%3EINTERNAL%20USE%20ONLY%3C/text%3E%3C/svg%3E");
}
body .wm-tiles .wm-en { display: none; }
body.en .wm-tiles .wm-en { display: block; }
body.en .wm-tiles .wm-zh { display: none; }

/* ============ 文书头 ============ */
.letterhead { text-align: center; padding-top: 18px; }
.lh-doc {
  font-size: 12px; color: var(--ink-faint); text-transform: uppercase;
  letter-spacing: .34em; text-indent: .34em;
}
.lh-title {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(30px, 5vw, 40px); letter-spacing: .1em;
  margin: 10px 0 4px; line-height: 1.25;
}
.lh-meta { font-size: 13px; color: var(--ink-soft); letter-spacing: .08em; }
/* [ADD 2026-09-20 v2.21] 打印适配提示行：meta 下方低调小字，视觉弱于 lh-meta（功能提示非内容）；打印时隐藏 */
.lh-print { font-size: 12px; color: var(--ink-soft); opacity: .75; margin-top: 7px; letter-spacing: .04em; }
.lh-rules {
  margin: 26px 0 0; border-top: 3px double var(--ink);
  border-bottom: 3px double var(--ink); height: 7px;
}

/* ============ 条款目录（dot leaders） ============ */
.toc { margin: 34px 0 6px; }
.toc-title {
  font-family: var(--serif); font-weight: 900; font-size: 15px;
  letter-spacing: .5em; text-indent: .5em; text-align: center;
  color: var(--ink); margin-bottom: 10px;
}
.toc ol { list-style: none; }
.toc li { border-bottom: 1px dotted var(--rule); }
.toc li:last-child { border-bottom: none; }
.toc a {
  display: flex; align-items: baseline; gap: 12px;
  padding: 9px 2px; text-decoration: none; color: var(--ink);
  font-size: 14.5px;
}
.toc a:hover .zh, .toc a:hover .en { color: var(--seal); }
.toc a b {
  font-family: var(--mono); font-weight: 700; font-size: 12px;
  color: var(--gold-ink); letter-spacing: .1em; min-width: 44px;
}
.toc a .dots {
  flex: 1; border-bottom: 1px dotted var(--rule);
  transform: translateY(-4px); min-width: 24px;
}

/* ============ 条款节通用 ============ */
.term { padding: 44px 0 6px; }
.term-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 6px; }
.term-no {
  font-family: var(--serif); font-weight: 700; font-size: 15px;
  color: var(--gold-ink); letter-spacing: .12em; white-space: nowrap;
}
.term-head h2 { font-family: var(--serif); font-size: 24px; font-weight: 900; letter-spacing: .05em; }
.term-head .rule-fill { flex: 1; border-bottom: 1px solid var(--rule); transform: translateY(-6px); }
.term-lead { font-size: 13px; color: var(--ink-faint); margin-bottom: 18px; letter-spacing: .04em; }
.term h3 {
  font-family: var(--serif); font-size: 17.5px; font-weight: 900;
  letter-spacing: .03em; margin: 30px 0 12px;
  display: flex; align-items: baseline; gap: 10px;
}
.term h3::before {
  content: "▪"; font-size: 11px; color: var(--gold-ink);
  transform: translateY(-2px);
}

/* ============ 正文与列表 ============ */
.clause-body p { max-width: 44em; margin-bottom: 1.15em; font-size: 16px; }
.clause-body p:last-child { margin-bottom: 0; }
/* Drop cap 仅英文启用——中文单字放大三行高，阅读体验差（委托方反馈 2026-09-17） */
body.en .clause-body p.lead::first-letter {
  float: left; font-family: var(--serif); font-weight: 900;
  font-size: 3.05em; line-height: .82;
  padding: 6px 10px 0 0; color: var(--gold-ink);
}
.clause-body strong { font-family: var(--serif); }
.plain-list { list-style: none; max-width: 44em; }
.plain-list li {
  padding: 9px 0 9px 20px; border-bottom: 1px solid var(--rule);
  font-size: 15px; position: relative;
}
.plain-list li::before {
  content: ""; position: absolute; left: 0; top: 1.05em;
  width: 8px; height: 8px; background: var(--paper-2);
  border: 1px solid var(--gold-ink);
}
.plain-list li:last-child { border-bottom: none; }
.plain-list strong { font-family: var(--serif); }
.footnote {
  margin-top: 28px; border-top: 1px solid var(--ink);
  padding: 14px 2px 0; font-size: 13.5px; color: var(--ink-soft);
}
.footnote .fn-no { color: var(--gold-ink); font-family: var(--serif); font-weight: 700; }
.footnote p { line-height: 1.85; }
.footnote-p { font-size: 13px; color: var(--ink-soft); margin-top: 18px; max-width: 44em; }
.loop-quote {
  font-family: var(--fang); font-size: 16.5px; line-height: 1.9;
  max-width: 44em; margin-bottom: 1.15em;
  border-left: 3px solid var(--gold-ink); padding-left: 16px;
}
.loop-quote strong { color: var(--gold-ink); font-weight: 700; }
.loop-quote .en { font-family: Georgia, serif; font-style: italic; }

/* ============ §01 速览：条目清单 ============ */
.items { border-top: 1px solid var(--ink); }
.item { display: grid; grid-template-columns: 112px 1fr; border-bottom: 1px solid var(--rule); }
.item dt {
  padding: 12px 14px 12px 2px; font-size: 11.5px; font-weight: 700;
  color: var(--gold-ink); text-transform: uppercase; letter-spacing: .18em;
  border-right: 1px solid var(--rule); line-height: 1.6;
}
.item dd { padding: 12px 0 12px 18px; font-size: 15px; }
.item dd strong { font-family: var(--serif); }
.item a { color: var(--gold-ink); text-decoration: underline; text-underline-offset: 3px; }
.item a:hover { color: var(--seal); }

/* ============ §03 事实读数行（mono 点缀 · 纸面版） ============ */
.facts-line {
  display: flex; flex-wrap: wrap; gap: 0 34px;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule);
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .08em;
  color: var(--ink-soft); margin-bottom: 8px;
}
.facts-line div { padding: 10px 0; white-space: nowrap; }
.facts-line b { color: var(--gold-ink); font-size: 15px; font-weight: 700; margin-right: 4px; }

/* ============ 表格（纸面条款表） ============ */
.tscroll { overflow-x: auto; margin: 6px 0 10px; }
.dtable {
  width: 100%; border-collapse: collapse; font-size: 14.5px;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
}
.dtable caption {
  caption-side: top; text-align: left;
  font-family: var(--mono); font-size: 11px; color: var(--ink-faint);
  letter-spacing: .18em; text-transform: uppercase;
  padding: 0 0 8px;
}
.dtable th, .dtable td {
  padding: 10px 12px; text-align: left; vertical-align: top;
  border-bottom: 1px solid var(--rule); line-height: 1.7;
}
.dtable thead th {
  font-size: 11px; color: var(--gold-ink); text-transform: uppercase;
  letter-spacing: .16em; border-bottom: 1px solid var(--ink);
  white-space: nowrap;
}
.dtable tbody th[scope="row"] {
  font-family: var(--serif); font-weight: 700; white-space: nowrap;
}
.dtable tbody tr:last-child th, .dtable tbody tr:last-child td { border-bottom: none; }
.tlink { font-size: 13.5px; margin-bottom: 6px; }
.tlink a { color: var(--gold-ink); text-decoration: underline; text-underline-offset: 3px; }
.tlink a:hover { color: var(--seal); }

/* ============ 核心系统清单 ============ */
.syslist {
  list-style: none; columns: 2; column-gap: 34px; max-width: 46em;
}
.syslist li {
  break-inside: avoid; padding: 8px 0 8px 20px;
  border-bottom: 1px solid var(--rule); font-size: 14px;
  position: relative; line-height: 1.65;
}
.syslist li::before {
  content: ""; position: absolute; left: 0; top: .95em;
  width: 8px; height: 8px; background: var(--paper-2);
  border: 1px solid var(--gold-ink);
}

/* ============ 附件装裱框 ============ */
.mount {
  margin: 26px auto 0; max-width: 640px;
  background: var(--mount-bg); padding: 12px;
  border: 1px solid var(--gold-ink);
  outline: 1px solid var(--rule); outline-offset: -5px;
}
.mount img { display: block; width: 100%; }
.mount-caption {
  display: flex; justify-content: flex-start; gap: 14px; flex-wrap: wrap;
  font-size: 12px; color: var(--ink-faint); letter-spacing: .1em;
  padding-top: 10px;
}
.mount-caption .fig {
  color: var(--gold-ink); font-weight: 700;
  font-family: var(--mono); text-transform: uppercase; letter-spacing: .2em;
  white-space: nowrap;
}

/* ============ 视频占位（VID 席位） ============ */
.vidslot {
  margin: 22px auto 0; max-width: 640px;
  border: 1px dashed var(--gold-ink);
  background: var(--paper-2);
  padding: 26px 18px; text-align: center;
}
.vidslot .vid-id {
  font-family: var(--mono); font-size: 12.5px; font-weight: 700;
  color: var(--gold-ink); letter-spacing: .22em; text-transform: uppercase;
}
.vidslot .vid-desc {
  font-size: 12.5px; color: var(--ink-faint); margin-top: 6px;
  letter-spacing: .05em;
}
/* VID02 B 站嵌入：16:9 播放器填满装裱框（纸卷风格保留虚线边框） */
.vidslot .vid-embed { display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; background: #000; }
/* [ADD 2026-09-18] 本地视频（VID01 预告片 / 附件四终战）：16:9 黑底，席位与装裱框内通用（.vidslot 内由上条规则覆盖布局，此处补 object-fit 并覆盖 .mount 场景） */
video.vid-embed { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #000; }
.vid-note { font-size: 12.5px; color: var(--ink-faint); margin-top: 12px; max-width: 44em; }

/* ============ USP 2 · 充能条（纸上适配版） ============ */
.usp-head { display: flex; align-items: flex-start; gap: 26px; flex-wrap: wrap; }
.usp-head .clause-body { flex: 1 1 340px; }
.charge-wrap { flex: 0 0 auto; padding-top: 6px; }
.charge-label {
  font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint);
  letter-spacing: .28em; text-transform: uppercase; margin-bottom: 10px;
}
.charge {
  border: 1px solid var(--gold-ink); height: 14px; width: min(280px, 100%);
  padding: 3px; position: relative; background: var(--paper);
}
.charge-bar { display: block; height: 100%; width: 100%; }
.charge-bar i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--gold-ink), var(--gold-desk));
  animation: charge 2.8s cubic-bezier(.6, 0, .8, .4) infinite;
}
@keyframes charge {
  0% { width: 0; }
  82% { width: 100%; }
  88% { width: 100%; background: var(--gold-desk); }
  100% { width: 0; }
}

/* ============ 罗马数字步骤 ============ */
.steps { list-style: none; counter-reset: roman; max-width: 44em; margin-top: 18px; }
.steps li {
  counter-increment: roman; display: grid; grid-template-columns: 40px 1fr;
  align-items: baseline; padding: 10px 0; border-bottom: 1px solid var(--rule);
  font-size: 15px;
}
.steps li::before {
  content: "(" counter(roman, lower-roman) ")";
  font-family: var(--serif); font-weight: 700; color: var(--gold-ink);
  font-size: 14px;
}
.steps strong { font-family: var(--serif); }

/* ============ §08 引文与团队标识 ============ */
.quote {
  margin: 26px 0; padding: 20px 22px;
  background: var(--paper-2);
  border-left: 3px solid var(--seal);
  max-width: 46em;
}
.quote p {
  font-family: var(--fang); font-size: 15.5px; line-height: 1.95;
  color: var(--ink-soft);
}
.quote .en { font-family: Georgia, serif; font-style: italic; }
.quote footer {
  margin-top: 12px; font-size: 12.5px; color: var(--ink-faint);
  letter-spacing: .06em;
}
.logo-fig { margin: 30px auto 0; text-align: center; max-width: 320px; }
.logo-fig img { display: block; max-width: 220px; margin: 0 auto; }
.logo-fig figcaption {
  font-family: var(--mono); font-size: 11px; color: var(--ink-faint);
  letter-spacing: .24em; text-transform: uppercase; padding-top: 10px;
}

/* ============ 文尾 · 联系 ============ */
.closing { padding-bottom: 12px; }
.contact-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0; border: 1px solid var(--ink); margin-top: 24px; }
.contact-row > div { padding: 14px 18px; border-right: 1px solid var(--rule); }
.contact-row > div:last-child { border-right: none; }
.contact-row h3 {
  font-size: 10.5px; color: var(--gold-ink); text-transform: uppercase;
  letter-spacing: .22em; margin: 0 0 5px; font-weight: 700;
  font-family: var(--sans);
}
.contact-row p { font-size: 14px; }
.contact-row a { color: var(--gold-ink); text-decoration: underline; text-underline-offset: 3px; }
.contact-row a:hover { color: var(--seal); }

/* [DEL 2026-09-20 v2.13] 附录·发送前核查 details.internal 全套规则随自检块移除（委托方指令：移除全部自检清单）；.plain-list 基础样式保留（§08 路线图等仍在用） */

/* ============ 页脚（桌面上） ============ */
.deskfoot {
  max-width: 780px; margin: 0 auto; padding: 30px 20px 44px;
  text-align: center;
}
.deskfoot .wm {
  font-family: var(--mono); font-size: 12.5px;
  color: var(--gold-desk); letter-spacing: .14em;
}
.deskfoot .desk-note { font-size: 11.5px; color: #7d7561; letter-spacing: .1em; margin-top: 8px; }

/* ============ 入场动效（IO 触发一次） ============ */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.reveal.on { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (max-width: 860px) {
  .syslist { columns: 1; }
  .usp-head { flex-direction: column; gap: 12px; }
  .charge-wrap { width: 100%; }
  .charge { width: 100%; }
}
@media (max-width: 720px) {
  .paper { margin: 10px 10px 0; padding: 42px 22px 50px; }
  .paper::before { left: 10px; right: 10px; }
  /* [MOD 2026-09-20] .seal 移动端覆盖随印章退役移除；水印为 SVG 平铺背景，响应式自适应无需断点 */
  .item { grid-template-columns: 1fr; }
  .item dt { border-right: none; padding: 10px 0 0; }
  .item dd { padding: 2px 0 12px 18px; }
  .contact-row { grid-template-columns: 1fr; }
  .contact-row > div { border-right: none; border-bottom: 1px solid var(--rule); }
  .contact-row > div:last-child { border-bottom: none; }
  .steps li { grid-template-columns: 34px 1fr; }
  .mount { padding: 8px; }
  .quote { padding: 16px 14px; }
}
@media (max-width: 560px) {
  .topbar { padding: 10px 16px; }
  .topbar .tb-brand small { display: none; }
  .hero-inner { padding: 110px 18px 0; }
  .readout div { padding: 12px 16px 30px 0; }
  .scroll-cue { display: none; }
  .dtable { font-size: 13.5px; }
  .dtable th, .dtable td { padding: 8px 10px; }
  .toc a { font-size: 14px; }
  .toc a b { min-width: 38px; }
}

/* ============ 打印样式（Ctrl+P / 存为 PDF = 正式提案文档） ============ */
/* [ADD 2026-09-20] 委托方批准的可打印方案（保纸色）：隐藏屏幕专属层，纸卷全宽直出 A4；
   水印 fixed 逐页重复（机密文件打印标准）；.reveal 强制可见（未滚动章节依赖 IO 触发，打印会整片空白——最大坑）；
   视频不参与打印（图注文字已完整描述内容）；目录后分页，封面页 = 主视觉 + 文书头 + 目录 */
.print-keyart { display: none; }

@media print {
  @page { size: A4; margin: 11mm 12mm; }

  /* 屏幕专属层退出：顶栏 / hero / 桌脚 / 滚动提示 / 语言钮 / 充能槽演示件 */
  .topbar, .hero, .deskfoot, .scroll-cue, .lang, .skip,
  .charge-wrap { display: none !important; }
  /* [ADD 2026-09-20 v2.21] 打印提示行随屏幕层退出（纸上该提示无意义） */
  .lh-print { display: none !important; }

  /* 纸卷全宽直出，保留纸色与朱砂（print-color-adjust 防浏览器剥背景） */
  html, body { background: #fff !important; background-image: none !important; }
  .paper {
    /* [MOD 2026-09-20 v2.19] 加 max-width:none：屏幕版 max-width:780px 未被覆盖，A4 内容区约 703px 装不下 780px 纸卷 → 钉左+右溢出被裁，全页内容左偏；清除后 width:100% 生效，左右对称 */
    width: 100%; max-width: none; margin: 5; padding: 5;
    box-shadow: none; background: var(--paper);
    -webkit-print-color-adjust: exact; print-color-adjust: exact;
  }
  .paper::before { display: none; } /* 金线装订为屏幕装饰 */
  .mount { padding: 0; background: transparent; border: none; }

  /* 打印专属主视觉（复用 hero 同一 keyart 资产） */
  .print-keyart { display: block; margin: 0 0 16px; }
  .print-keyart img { width: 100%; height: auto; }

  /* .reveal 依赖 IntersectionObserver 触发，打印时强制全部可见 */
  .reveal { opacity: 1 !important; transform: none !important; }

  /* 水印逐页重复：fixed 元素在打印中每页重绘（机密文书标准） */
  .wm-tiles { position: fixed; inset: 0; }
  .wm-tiles .wm-layer { position: fixed; inset: 0; }

  /* 视频打印为空白 → 隐藏本体，保留图注文字 */
  .vid-embed { display: none !important; }

  /* 分页卫生：标题不与内容分离；证据块不跨页腰斩 */
  .term-head, .letterhead, h2, h3 { break-after: avoid; }
  .quote, .mount, .item, .contact-row, .steps li,
  .dtable tr { break-inside: avoid; }
  /* 目录后分页：封面页（主视觉+文书头+目录）之后正文起新页 */
  .toc { break-after: page; }
  .term { break-inside: auto; }
  /* 附件 GIF 首帧按页宽缩放 */
  .mount img { max-width: 100%; height: auto; }
}