/* ==========================================================================
   SgRent · 样式表
   纸张感暖色底、衬线大标题、宽松留白。桌面基准 1280，手机基准 390。
   ========================================================================== */

@import url("fonts/fonts.css");

:root {
  /* 纸张底色（浅 → 深） */
  --paper: #f5f0e6;
  --paper-deep: #ebe4d5;
  --paper-soft: #f9f6ef;
  --card: #fcfaf5;

  /* 文字阶梯：四级墨色，均在最深纸底（--paper-deep）上 ≥ 4.5:1
     ink 15.6 · ink-2 9.4 · muted 6.3 · faint 4.6（faint 不用于 --paper-deep 底） */
  --ink: #1b1812;
  --ink-2: #433d34;
  --muted: #5f564a;
  --faint: #756b5e;

  /* 深底上的文字 */
  --on-dark: var(--paper);
  --on-dark-muted: rgba(245, 240, 230, .74);

  /* 线条：line/line-strong 仅作分隔装饰；line-ui 用于输入框、单选等控件边界（≥ 3:1） */
  --line: #ddd5c6;
  --line-strong: #c8bda8;
  --line-ui: #9c907d;

  /* 松绿点缀：green 7.1:1 on paper，可作正文链接色 */
  --green: #1e5a48;
  --green-deep: #15443a;
  --green-soft: #e3ebe4;

  /* 黄铜：用于章节编号、推荐标签，5.5:1 on paper / 5.1:1 on brass-soft */
  --brass: #7a5c22;
  --brass-soft: #f1e7cf;
  --red: #b0452c;

  --serif: "SgRent Serif", "Noto Serif SC", "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --sans: "SgRent Sans", "Noto Sans SC", "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;

  --wrap: 1180px;
  --gx: clamp(20px, 5vw, 64px);
  --header-h: 68px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 1px 2px rgba(27, 24, 18, .05), 0 12px 32px -12px rgba(27, 24, 18, .14);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.85 var(--sans);
  font-feature-settings: "palt" 0;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* 纸张微颗粒 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .32;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .35 0 0 0 0 .3 0 0 0 0 .2 0 0 0 .09 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
body > * { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
a:visited { color: inherit; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; margin: 0; letter-spacing: .01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
dl, dd, figure { margin: 0; }
::selection { background: var(--green-soft); color: var(--green-deep); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }

/* 正文内链接：松绿 + 细下划线，hover 加深 */
.text-link, .price-notes a, .faq details a, .prose a, .form-foot a, .auth-foot a, .auth-row a {
  color: var(--green); border-bottom: 1px solid color-mix(in srgb, var(--green) 45%, transparent);
  transition: color .2s, border-color .2s;
}
.text-link:visited, .price-notes a:visited, .faq details a:visited, .prose a:visited, .form-foot a:visited, .auth-foot a:visited, .auth-row a:visited { color: var(--green); }
.text-link:hover, .price-notes a:hover, .faq details a:hover, .prose a:hover, .form-foot a:hover, .auth-foot a:hover, .auth-row a:hover {
  color: var(--green-deep); border-bottom-color: currentColor;
}
@supports not (color: color-mix(in srgb, red 50%, blue)) {
  .text-link, .price-notes a, .faq details a, .prose a, .form-foot a, .auth-foot a, .auth-row a { border-bottom-color: currentColor; }
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gx); }
.serif { font-family: var(--serif); }
.num { font-family: var(--serif); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 按钮 ---------- */
/* 实心（默认）：墨底纸字 15.6:1；hover 松绿深 9.6:1 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 6px;
  border: 1px solid var(--ink); background: var(--ink); color: var(--on-dark);
  font-size: 15px; font-weight: 500; line-height: 1.4; cursor: pointer; white-space: nowrap;
  transition: background .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease), color .25s, box-shadow .25s;
}
.btn:visited { color: var(--on-dark); }
.btn:hover { background: var(--green-deep); border-color: var(--green-deep); color: var(--on-dark); transform: translateY(-1px); }
.btn:active { background: var(--ink); border-color: var(--ink); transform: translateY(0); }

/* 描边：纸底墨字，边框用控件级线色（≥ 3:1） */
.btn--ghost, .btn--ghost:visited { background: transparent; color: var(--ink); border-color: var(--line-ui); }
.btn--ghost:hover { background: var(--paper-deep); color: var(--ink); border-color: var(--ink); }
.btn--ghost:active { background: var(--paper-deep); color: var(--ink); border-color: var(--ink); }

/* 松绿实心：7.1:1 */
.btn--green, .btn--green:visited { background: var(--green); border-color: var(--green); color: var(--on-dark); }
.btn--green:hover { background: var(--green-deep); border-color: var(--green-deep); }
.btn--green:active { background: var(--green-deep); border-color: var(--green-deep); }

.btn--lg { padding: 14px 28px; font-size: 16px; }
.btn--block { width: 100%; }

/* 文字按钮：必须清掉 .btn 的墨色底，否则墨字落在墨底上（1.65:1） */
.btn--text, .btn--text:visited {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 11px 6px; border-radius: 4px;
  background: transparent; border-color: transparent; color: var(--ink);
  font-size: 15px; font-weight: 500; box-shadow: inset 0 -1px 0 transparent;
}
.btn--text:hover, .btn--text:active {
  background: transparent; border-color: transparent; color: var(--green);
  box-shadow: inset 0 -1px 0 var(--green); transform: none;
}
.btn--text.btn--lg { padding-inline: 10px; }

.arrow { display: inline-block; transition: transform .25s var(--ease); }
.btn:hover .arrow, .btn--text:hover .arrow { transform: translateX(3px); }

/* ---------- 页眉 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .site-header { background: rgba(245, 240, 230, .92); }
}
.site-header .wrap { height: 100%; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 700; font-size: 21px; letter-spacing: .02em; }
.brand svg { width: 30px; height: 30px; }
.site-nav { display: flex; align-items: center; gap: 28px; flex: 1; font-size: 15px; color: var(--ink-2); }
.site-nav a { position: relative; padding: 4px 0; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
.site-actions { display: flex; align-items: center; gap: 14px; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-actions .link { font-size: 15px; color: var(--ink-2); }
.site-actions .link:hover, .site-actions .link[aria-current="page"] { color: var(--ink); }
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line-ui); border-radius: 6px;
  background: transparent; cursor: pointer; place-items: center; margin-left: auto;
}
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--ink); position: relative; transition: transform .3s var(--ease), background .3s; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; width: 18px; height: 1.5px; background: var(--ink); transition: transform .3s var(--ease), top .3s var(--ease); }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-extra { display: none; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { top: 0; transform: rotate(45deg); }
.nav-open .nav-toggle span::after { top: 0; transform: rotate(-45deg); }

/* ---------- 通用区块 ---------- */
.sec { padding-block: clamp(80px, 10vw, 136px); }
.sec--tight { padding-block: clamp(56px, 7vw, 96px); }
.sec--deep { background: var(--paper-deep); }
.sec--line { border-top: 1px solid var(--line); }
.sec-head { max-width: 640px; margin-bottom: clamp(36px, 5vw, 64px); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 500; letter-spacing: .14em; color: var(--green);
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--green); }
.h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.3; }
.h2 + p { margin-top: 16px; font-size: 17px; color: var(--muted); }
.lead { font-size: 18px; color: var(--ink-2); line-height: 1.9; }

/* 进场动画 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 首屏 ---------- */
.hero { position: relative; overflow: hidden; }
.hero .wrap {
  min-height: calc(100svh - var(--header-h));
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(32px, 5vw, 80px);
  align-items: center; padding-block: clamp(48px, 7vw, 96px);
}
.hero-copy { max-width: 600px; }
.status {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: .08em; color: var(--ink-2);
  padding: 6px 14px 6px 10px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--paper-soft);
  margin-bottom: 28px;
}
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 0 rgba(30, 90, 72, .45); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(30, 90, 72, .45); } 70% { box-shadow: 0 0 0 9px rgba(30, 90, 72, 0); } 100% { box-shadow: 0 0 0 0 rgba(30, 90, 72, 0); } }
.hero h1 { font-size: clamp(42px, 5.6vw, 74px); line-height: 1.2; letter-spacing: .005em; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--green); }
.hero .lead { margin-top: 26px; max-width: 520px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 0 36px; margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line);
}
.hero-meta div { display: flex; flex-direction: column; gap: 2px; }
.hero-meta dt { font-size: 12px; letter-spacing: .1em; color: var(--muted); }
.hero-meta dd { margin: 0; font-family: var(--serif); font-size: 20px; font-weight: 700; }
.hero-meta dd small { font-family: var(--sans); font-size: 13px; font-weight: 400; color: var(--muted); margin-left: 4px; }

.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; }
.hero-art figcaption { margin-top: 14px; font-size: 13px; color: var(--muted); text-align: right; }

.scroll-hint { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); font-size: 12px; letter-spacing: .2em; color: var(--muted); display: flex; flex-direction: column; align-items: center; gap: 6px; }
.scroll-hint::after { content: ""; width: 1px; height: 28px; background: linear-gradient(var(--muted), transparent); animation: drop 1.8s infinite; }
@keyframes drop { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- 插图（内联 SVG） ---------- */
.art text { font-family: var(--sans); font-size: 12.5px; fill: var(--ink-2); letter-spacing: .04em; }
.art .lbl, .art .lbl text { fill: var(--muted); font-size: 12px; }
.art .t-serif { font-family: var(--serif); font-size: 14px; font-weight: 700; fill: var(--ink); }
.art .city circle { fill: var(--paper-soft); stroke: var(--ink); stroke-width: 1.5; }
.art .city text { font-size: 13px; fill: var(--ink); }
.art .flow path { stroke-dasharray: 4 6; animation: flow 3.2s linear infinite; opacity: .75; }
.art .ring { animation: ring 3s var(--ease) infinite; transform-origin: 330px 396px; }
.art .ring--2 { animation-delay: .6s; }
.art .bar { animation: bar 4s var(--ease) infinite alternate; transform-origin: 92px 151px; }
@keyframes flow { to { stroke-dashoffset: -40; } }
@keyframes ring { 0% { transform: scale(.85); opacity: 1; } 100% { transform: scale(1.25); opacity: 0; } }
@keyframes bar { from { transform: scaleX(.55); } to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) { .art .flow path, .art .ring, .art .bar, .status i, .scroll-hint::after { animation: none; } }

/* ---------- 叙事章节（粘性视觉 + 滚动文字） ---------- */
.story { border-top: 1px solid var(--line); }
.story .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.story-visual { position: sticky; top: calc(var(--header-h) + 24px); height: calc(100svh - var(--header-h) - 48px); min-height: 420px; }
.story-frame {
  position: relative; height: 100%;
  border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper-soft);
  box-shadow: var(--shadow); overflow: hidden;
}
.story-frame figure { position: absolute; inset: 0; margin: 0; display: grid; place-items: center; padding: clamp(24px, 4vw, 48px); opacity: 0; transform: translateY(14px) scale(.985); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.story-frame figure.is-active { opacity: 1; transform: none; }
.story-frame svg { width: 100%; max-width: 480px; height: auto; }
.story-index { position: absolute; left: 24px; top: 20px; display: flex; gap: 8px; }
.story-index i { width: 20px; height: 2px; background: var(--line-strong); border-radius: 2px; transition: background .4s, width .4s var(--ease); }
.story-index i.on { width: 34px; background: var(--green); }
.story-steps { padding-block: 10vh; }
.chapter { min-height: 72vh; display: flex; flex-direction: column; justify-content: center; padding-block: 48px; }
.chapter .no { font-family: var(--serif); font-size: 15px; color: var(--brass); letter-spacing: .12em; margin-bottom: 18px; }
.chapter h3 { font-size: clamp(30px, 3.2vw, 40px); line-height: 1.32; }
.chapter > p:not(.no) { margin-top: 20px; font-size: 17px; color: var(--muted); max-width: 440px; }
.chapter .btn--text { align-self: flex-start; margin-top: 18px; }
.chapter ul { margin-top: 22px; display: grid; gap: 8px; color: var(--ink-2); font-size: 15px; }
.chapter li { display: flex; gap: 10px; }
.chapter li::before { content: "·"; color: var(--green); font-weight: 700; }

/* ---------- 规格表 ---------- */
.spec { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.spec-list { border-top: 1px solid var(--ink); }
.spec-list div { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.spec-list dt { font-size: 13px; letter-spacing: .08em; color: var(--muted); padding-top: 4px; }
.spec-list dd { margin: 0; font-size: 16px; color: var(--ink); }
.spec-list dd small { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }
.spec-note { margin-top: 22px; font-size: 14px; color: var(--muted); display: flex; gap: 10px; }
.spec-note::before { content: "※"; color: var(--brass); }

/* ---------- 方案与费用 ---------- */
.pricing-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); gap: clamp(28px, 4vw, 56px); align-items: start; }
.seg {
  display: inline-grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  padding: 4px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--paper-soft);
  margin-bottom: 28px; width: min(100%, 420px);
}
.seg button {
  border: 0; background: transparent; padding: 9px 16px; border-radius: 5px; cursor: pointer;
  font-size: 15px; color: var(--muted); display: flex; flex-direction: column; align-items: center; gap: 1px; line-height: 1.3;
  transition: background .25s, color .25s, box-shadow .25s;
}
.seg button:hover { color: var(--ink); }
.seg button small { font-size: 11px; letter-spacing: .06em; color: var(--faint); }
.seg button[aria-selected="true"] { background: var(--ink); color: var(--on-dark); box-shadow: 0 2px 8px rgba(27, 24, 18, .18); }
.seg button[aria-selected="true"] small { color: var(--on-dark-muted); }
.seg-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.seg-row .hint { font-size: 13px; color: var(--muted); margin-bottom: 28px; }

.plan-cards { display: grid; gap: 16px; }
.plan {
  position: relative; display: grid; grid-template-columns: 1fr auto; gap: 8px 24px;
  padding: 26px 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--card);
  cursor: pointer; transition: border-color .25s, box-shadow .25s, transform .25s var(--ease);
}
.plan:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.plan input { position: absolute; opacity: 0; pointer-events: none; }
.plan.is-selected { border-color: var(--ink); box-shadow: var(--shadow); }
.plan .check {
  position: absolute; top: 22px; right: 22px; width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid var(--line-ui); display: grid; place-items: center; background: var(--paper-soft); transition: .25s;
}
.plan:has(input:focus-visible) { outline: 2px solid var(--green); outline-offset: 3px; }
.plan .check::after { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--green); transform: scale(0); transition: transform .25s var(--ease); }
.plan.is-selected .check { border-color: var(--green); }
.plan.is-selected .check::after { transform: scale(1); }
.plan-head { grid-column: 1 / -1; padding-right: 40px; }
.plan-head .tag { display: inline-block; font-size: 11px; letter-spacing: .1em; padding: 2px 8px; border-radius: 4px; background: var(--brass-soft); color: var(--brass); margin-left: 8px; vertical-align: 2px; }
.plan h3 { font-size: 22px; }
.plan-head p { margin-top: 6px; color: var(--muted); font-size: 15px; }
.plan ul { display: grid; gap: 6px; margin-top: 10px; font-size: 14px; color: var(--ink-2); }
.plan li { display: flex; gap: 8px; }
.plan li::before { content: "✓"; color: var(--green); font-size: 12px; line-height: 1.9; }
.plan-price { align-self: end; text-align: right; margin-top: 10px; }
.plan-price b { display: block; font-family: var(--serif); font-size: 34px; font-weight: 700; line-height: 1; }
.plan-price b small { font-family: var(--sans); font-size: 13px; font-weight: 400; color: var(--muted); margin-left: 2px; }
.plan-price span { display: block; font-size: 12px; color: var(--faint); margin-top: 6px; }

.quote {
  position: relative;
  border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--paper-soft);
  padding: 28px; box-shadow: var(--shadow);
}
.pricing-grid > .quote { position: sticky; top: calc(var(--header-h) + 24px); }
.quote::before { content: ""; position: absolute; left: 24px; right: 24px; top: 0; height: 3px; background: var(--green); border-radius: 0 0 3px 3px; }
.quote-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.quote-head h3 { font-size: 20px; }
.quote-head span { font-size: 12px; letter-spacing: .08em; color: var(--muted); }
.quote-rows { border-top: 1px solid var(--line); }
.quote-rows div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 12px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.quote-rows dt { color: var(--ink-2); }
.quote-rows dt small { display: block; font-size: 12px; color: var(--faint); }
.quote-rows dd { margin: 0; font-family: var(--serif); font-variant-numeric: tabular-nums; white-space: nowrap; }
.quote-rows dd.inc { font-family: var(--sans); font-size: 13px; color: var(--green); }
.quote-total { display: flex; justify-content: space-between; align-items: baseline; padding: 18px 0 6px; }
.quote-total dt { font-size: 15px; font-weight: 500; }
.quote-total dt small { display: block; font-size: 12px; font-weight: 400; color: var(--muted); }
.quote-total dd { margin: 0; font-family: var(--serif); font-size: 36px; font-weight: 700; line-height: 1; }
.quote-total dd small { font-family: var(--sans); font-size: 13px; font-weight: 400; color: var(--muted); margin-left: 6px; }
.quote .btn { margin-top: 18px; }
.quote-note { margin-top: 14px; font-size: 12.5px; color: var(--muted); line-height: 1.7; }
.quote-note b { color: var(--ink-2); font-weight: 500; }

.price-notes { margin-top: clamp(32px, 4vw, 48px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding-top: 28px; border-top: 1px solid var(--line); }
.price-notes h4 { font-size: 15px; font-family: var(--sans); font-weight: 500; }
.price-notes p { margin-top: 6px; font-size: 14px; color: var(--muted); }/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--ink); }
.steps li { padding: 28px 28px 32px 0; border-right: 1px dashed var(--line-strong); margin-right: 28px; }
.steps li:last-child { border-right: 0; margin-right: 0; }
.steps .no { font-family: var(--serif); font-size: 44px; line-height: 1; color: var(--faint); }  /* 大号数字，4.1:1 on paper-deep（大文本 ≥ 3:1） */
.steps h3 { font-size: 20px; margin-top: 18px; }
.steps p { margin-top: 10px; font-size: 15px; color: var(--muted); }
.steps li strong { display: block; margin-top: 12px; font-size: 13px; color: var(--green); font-weight: 500; }

/* ---------- 场景 ---------- */
.cases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.case { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--card); transition: transform .3s var(--ease), box-shadow .3s; }
.case:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.case svg { width: 36px; height: 36px; color: var(--green); margin-bottom: 18px; }
.case h3 { font-size: 19px; }
.case p { margin-top: 8px; font-size: 14.5px; color: var(--muted); }

/* ---------- 问答 ---------- */
.faq-grid { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: clamp(32px, 5vw, 80px); }
.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 0; font-family: var(--serif); font-size: 19px; font-weight: 700; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 12px; height: 12px; border-right: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); transform: rotate(45deg) translate(-2px, -2px); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: rotate(-135deg) translate(-3px, -3px); }
.faq details p { padding: 0 48px 24px 0; color: var(--muted); font-size: 15.5px; }
.faq-aside .h2 + p { margin-top: 16px; color: var(--muted); }
.faq-aside .btn--text { margin-top: 12px; }

/* ---------- 文档入口 ---------- */
.docs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.doc-link { display: flex; flex-direction: column; justify-content: space-between; gap: 32px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper-soft); transition: border-color .25s, transform .3s var(--ease); }
.doc-link:hover { border-color: var(--ink); transform: translateY(-2px); }
.doc-link:hover span { color: var(--green-deep); }
.doc-link h3 { font-size: 20px; }
.doc-link p { margin-top: 6px; font-size: 14px; color: var(--muted); }
.doc-link span { font-size: 14px; color: var(--green); font-weight: 500; }

/* ---------- 结尾号召 ---------- */
.cta-band { background: var(--ink); color: var(--on-dark); }
.cta-band .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) auto; gap: 32px; align-items: center; padding-block: clamp(56px, 7vw, 96px); }
.cta-band h2 { font-size: clamp(28px, 3.4vw, 40px); line-height: 1.3; }
.cta-band p { margin-top: 12px; color: var(--on-dark-muted); font-size: 16px; }  /* 9:1 on ink */
.cta-band .btn, .cta-band .btn:visited { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.cta-band .btn:hover, .cta-band .btn:active { background: #fff; color: var(--ink); border-color: #fff; }
.cta-band :focus-visible { outline-color: var(--paper); }  /* 墨底上松绿焦点环只有 2.2:1，改用纸色 */
.cta-band ::selection { background: var(--paper); color: var(--ink); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--paper-deep); font-size: 14px; color: var(--muted); }
.site-footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-block: 56px 28px; }
.site-footer .brand { color: var(--ink); }
.site-footer .about p { margin-top: 14px; max-width: 320px; line-height: 1.8; }
.site-footer h4 { font-family: var(--sans); font-size: 13px; letter-spacing: .1em; color: var(--ink); margin-bottom: 14px; font-weight: 500; }
.site-footer ul { display: grid; gap: 8px; }
.site-footer a:hover { color: var(--ink); }
.footer-bar { border-top: 1px solid var(--line); }
.footer-bar .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; padding-block: 18px; font-size: 13px; color: var(--muted); }  /* paper-deep 底上不用 faint */

/* ---------- 子页面：文档排版 ---------- */
.page-hero { padding-block: clamp(48px, 6vw, 88px) clamp(28px, 4vw, 48px); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(34px, 4.4vw, 54px); line-height: 1.25; }
.page-hero p { margin-top: 14px; color: var(--muted); font-size: 17px; max-width: 620px; }
.page-hero .crumbs { font-size: 13px; color: var(--muted); margin-bottom: 20px; display: flex; gap: 8px; }
.page-hero .crumbs a:hover { color: var(--ink); border-bottom: 1px solid currentColor; }
.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); padding-block: clamp(40px, 5vw, 72px) clamp(72px, 8vw, 120px); }
.toc { position: sticky; top: calc(var(--header-h) + 24px); font-size: 14px; }
.toc h4 { font-family: var(--sans); font-size: 12px; letter-spacing: .12em; color: var(--muted); font-weight: 500; margin-bottom: 12px; }
.toc ul { display: grid; gap: 2px; border-left: 1px solid var(--line); }
.toc a { display: block; padding: 6px 14px; color: var(--muted); border-left: 1px solid transparent; margin-left: -1px; }
.toc a:hover, .toc a.on { color: var(--ink); border-left-color: var(--ink); }
.prose { max-width: 720px; }
.prose h2 { font-size: 26px; margin-top: 48px; padding-top: 8px; scroll-margin-top: calc(var(--header-h) + 24px); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 19px; margin-top: 28px; }
.prose p { margin-top: 14px; color: var(--ink-2); }
.prose ul, .prose ol { margin-top: 14px; padding-left: 22px; color: var(--ink-2); display: grid; gap: 6px; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose .callout { margin-top: 20px; padding: 18px 22px; border-left: 3px solid var(--brass); background: var(--paper-soft); border-radius: 0 var(--radius) var(--radius) 0; font-size: 15px; color: var(--ink-2); }
.prose table { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 15px; }
.prose th, .prose td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { font-weight: 500; color: var(--muted); font-size: 13px; letter-spacing: .06em; }
.prose .meta { font-size: 13px; color: var(--faint); }

/* ---------- 表单 ---------- */
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; font-weight: 500; color: var(--ink-2); }
.field label small { font-weight: 400; color: var(--faint); margin-left: 6px; }
.input, .select, .textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--card);
  border: 1px solid var(--line-ui); border-radius: 8px; padding: 12px 14px; line-height: 1.5;
  transition: border-color .2s, box-shadow .2s;
}
.input::placeholder, .textarea::placeholder { color: var(--faint); opacity: 1; }  /* 5.0:1 on card */
.input:hover, .select:hover, .textarea:hover { border-color: var(--ink-2); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }
.input:disabled, .select:disabled, .textarea:disabled { color: var(--muted); background: var(--paper-deep); border-color: var(--line-strong); cursor: not-allowed; }
.input:user-invalid, .textarea:user-invalid { border-color: var(--red); }
.select { appearance: none; -webkit-appearance: none; padding-right: 40px; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%231b1812' stroke-width='1.5'/></svg>"); background-repeat: no-repeat; background-position: right 14px center; }
.textarea { resize: vertical; min-height: 120px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-grid .span { grid-column: 1 / -1; }
.form-foot { margin-top: 8px; font-size: 13px; color: var(--muted); line-height: 1.7; }
.form-ok { display: none; margin-top: 16px; padding: 14px 18px; border-radius: 8px; background: var(--green-soft); color: var(--green-deep); font-size: 14px; }
.form-ok.show { display: block; }

/* 申请页布局 */
.apply { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: clamp(32px, 5vw, 72px); padding-block: clamp(40px, 5vw, 72px) clamp(72px, 8vw, 120px); align-items: start; }
.apply-form { display: grid; gap: 28px; }
.fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 18px; }
.fieldset legend { font-family: var(--serif); font-size: 20px; font-weight: 700; margin-bottom: 14px; padding: 0; }
.fieldset legend small { font-family: var(--sans); font-size: 13px; font-weight: 400; color: var(--muted); margin-left: 10px; }
.summary { position: sticky; top: calc(var(--header-h) + 24px); }
.summary-steps { margin-top: 20px; padding: 20px 22px; border: 1px solid var(--line); border-radius: var(--radius-lg); font-size: 14px; color: var(--muted); display: grid; gap: 10px; }
.summary-steps li { display: flex; gap: 12px; }
.summary-steps li b { font-family: var(--serif); color: var(--brass); font-weight: 700; min-width: 20px; }

/* 登录页 */
.auth .wrap { min-height: calc(100svh - var(--header-h)); display: grid; place-items: center; padding-block: clamp(40px, 6vw, 80px); }
.auth-card { width: min(100%, 440px); padding: clamp(28px, 4vw, 44px); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--paper-soft); box-shadow: var(--shadow); }
.auth-card h1 { font-size: 30px; }
.auth-card > p { margin-top: 8px; color: var(--muted); font-size: 15px; }
.auth-card form { margin-top: 28px; display: grid; gap: 18px; }
.auth-row { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--muted); }
.auth-row label { display: flex; align-items: center; gap: 8px; }
.auth-row input { accent-color: var(--green); }
.auth-foot { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); text-align: center; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-grid > .quote { position: relative; top: auto; }
  .cases { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps li:nth-child(2) { border-right: 0; margin-right: 0; }
  .site-footer .wrap { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .site-nav, .site-actions .link { display: none; }
  .nav-toggle { display: grid; }
  .site-actions { margin-left: auto; gap: 10px; }
  .site-header .wrap { gap: 16px; }
  .nav-open .site-nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: fixed; left: 0; right: 0; top: var(--header-h); bottom: 0; z-index: 49;
    background: var(--paper); padding: 16px var(--gx) 32px; border-top: 1px solid var(--line); overflow: auto;
  }
  .nav-open .site-nav a { padding: 16px 0; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 22px; }
  .nav-open .site-nav a::after { display: none; }
  .nav-open .site-nav .nav-extra { display: grid; gap: 12px; margin-top: 24px; }
  .nav-open { overflow: hidden; }

  .hero .wrap { grid-template-columns: 1fr; min-height: 0; padding-block: 48px 72px; }
  .hero-art { max-width: 520px; margin-top: 8px; }
  .hero-art figcaption { text-align: left; }
  .scroll-hint { display: none; }

  .story .wrap { grid-template-columns: 1fr; gap: 0; }
  .story-visual { top: var(--header-h); height: 42svh; min-height: 300px; background: var(--paper); padding-block: 14px 10px; z-index: 2; }
  .story-frame figure { padding: 20px; }
  .story-frame svg { height: 100%; width: auto; max-width: 100%; }
  .story-steps { padding-block: 0 24px; }
  .chapter { min-height: 0; padding-block: 56px 40px; }
  .chapter:first-child { padding-top: 32px; }

  .spec { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .docs { grid-template-columns: 1fr; }
  .price-notes { grid-template-columns: 1fr; gap: 18px; }
  .cta-band .wrap { grid-template-columns: 1fr; }
  .doc { grid-template-columns: 1fr; }
  .toc { position: static; }
  .toc ul { display: flex; flex-wrap: wrap; gap: 8px; border: 0; }
  .toc a { padding: 6px 12px; border: 1px solid var(--line-strong); border-radius: 999px; margin: 0; }
  .toc a.on { border-color: var(--ink); background: var(--paper-soft); }
  .apply { grid-template-columns: 1fr; }
  .summary { position: static; }
}

@media (max-width: 600px) {
  body { font-size: 15.5px; }
  .hero h1 { font-size: clamp(36px, 10.5vw, 46px); }
  .hero-meta { gap: 16px 24px; }
  .hero-meta div { min-width: 40%; }
  .hero-cta .btn { flex: 1 1 auto; }
  .chapter h3 { font-size: 28px; }
  .spec-list div { grid-template-columns: 1fr; gap: 4px; padding: 14px 0; }
  .seg { width: 100%; }
  .seg button { padding: 8px 6px; font-size: 14px; }
  .plan { grid-template-columns: 1fr; padding: 22px 20px; }
  .plan-price { text-align: left; margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line); }
  .quote { padding: 22px 20px; }
  .quote-total dd { font-size: 30px; }
  .steps { grid-template-columns: 1fr; }
  .steps li { border-right: 0; margin-right: 0; padding: 22px 0; border-bottom: 1px dashed var(--line-strong); }
  .steps li:last-child { border-bottom: 0; }
  .steps .no { font-size: 32px; }
  .cases { grid-template-columns: 1fr; }
  .faq summary { font-size: 17px; padding: 18px 0; }
  .faq details p { padding-right: 24px; }
  .site-footer .wrap { grid-template-columns: 1fr; gap: 28px; }
  .form-grid { grid-template-columns: 1fr; }
}
/* ---- 申请须知与表单（定价更新） ---- */
.notice{grid-column:1/-1;max-width:820px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:clamp(22px,4vw,40px)}
.notice h3{font-size:17px;margin:22px 0 6px;color:var(--ink)}.notice p{color:var(--ink-2);margin:0}.notice a{color:var(--ink);text-decoration:underline}
.notice-gate{background:var(--paper-deep);border-radius:10px;padding:10px 14px;margin:12px 0 4px!important}
.notice-form{margin-top:26px;border-top:1px solid var(--line);padding-top:20px;display:grid;gap:12px}
.check-row{display:flex;gap:10px;align-items:flex-start;color:var(--ink);line-height:1.6}.check-row input{margin-top:5px;width:18px;height:18px;flex:none;accent-color:#1e5a48}
.notice-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}.btn[disabled]{opacity:.45;cursor:not-allowed}
.apply-step{display:contents}.apply-step[hidden]{display:none}
.choice-list{display:grid;gap:10px}.choice-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:14px}
.choice{display:grid;grid-template-columns:auto 1fr auto;gap:2px 10px;align-items:center;border:1px solid var(--line-strong);border-radius:12px;padding:14px 16px;background:var(--card);cursor:pointer}
.choice input{accent-color:#1e5a48;grid-row:span 2}.choice span{grid-column:2;color:var(--muted);font-size:14px}.choice em{grid-row:1/span 2;grid-column:3;font-style:normal;font-weight:600;color:var(--ink)}
.choice:has(input:checked){border-color:#1e5a48;box-shadow:0 0 0 1px #1e5a48}.choice.sm{grid-template-columns:auto 1fr}
.field-hint{color:var(--muted);font-size:14px;margin:10px 0 0}.form-err{color:#9a2f22;font-size:14px;min-height:1em}
.quote-rows s{color:var(--muted)}
@media(max-width:600px){.choice{grid-template-columns:auto 1fr}.choice em{grid-row:auto;grid-column:2}}
.plan.is-disabled,.choice.is-disabled{opacity:.5;cursor:not-allowed;filter:grayscale(1)}.plan.is-disabled:hover{transform:none;box-shadow:none}
.tag--off{background:var(--paper-deep);color:var(--muted)}.plan-price b.off{font-size:20px;color:var(--muted)}

/* story-art */
/* 首屏下方滚动插画：section 220vh，内部 sticky 舞台 100vh。
   默认样式即最终状态（无 JS / 减弱动态时直接可见），JS 仅以内联 transform/opacity 驱动。 */
.story-art {
  --sa-hand-w: clamp(180px, 32vw, 480px);
  --sa-dev-w: clamp(210px, 30vw, 400px);
  --sa-lift: clamp(24px, 4vw, 56px);
  --sa-cy: calc(50% + var(--header-h) / 2);
  position: relative; height: 220vh; height: 220svh;
  background: var(--paper); overflow-x: clip;
}
.story-art-stage {
  position: sticky; top: 0; height: 100vh; height: 100svh;
  overflow: hidden;
}
.story-art-stage::before {
  content: ""; position: absolute; left: 50%; top: var(--sa-cy); z-index: 0;
  width: calc(var(--sa-dev-w) * 2.3); aspect-ratio: 1; border-radius: 50%;
  transform: translate(-50%, calc(-50% - var(--sa-lift)));
  background: radial-gradient(closest-side, rgba(252, 250, 245, .85), rgba(245, 240, 230, 0));
  pointer-events: none;
}
.sa-hand {
  position: absolute; top: var(--sa-cy); z-index: 1;
  width: var(--sa-hand-w); height: auto;
  margin-top: calc(var(--sa-hand-w) * -0.06 - var(--sa-lift));
  will-change: transform;
}
.sa-hand--l { left: calc(50% - var(--sa-hand-w) * 1.06); }
.sa-hand--r { right: calc(50% - var(--sa-hand-w) * 1.06); }
.sa-device {
  position: absolute; left: 50%; top: var(--sa-cy); z-index: 2;
  width: var(--sa-dev-w);
  margin-left: calc(var(--sa-dev-w) / -2);
  margin-top: calc(var(--sa-dev-w) * -0.325 - var(--sa-lift));
  will-change: transform, opacity;
}
.sa-device svg { display: block; width: 100%; height: auto; }
.sa-label {
  position: absolute; left: 0; right: 0; z-index: 3;
  top: calc(var(--sa-cy) - var(--sa-lift) + var(--sa-hand-w) * .45);
  padding-inline: var(--gx); text-align: center;
  will-change: transform, opacity;
}
.sa-name { margin: 0; font-family: var(--serif); font-size: clamp(22px, 2.6vw, 34px); line-height: 1.3; letter-spacing: .02em; color: var(--ink); }
.sa-name b { font-weight: 800; }
.sa-sub { margin: 8px 0 0; font-size: clamp(12px, 1.1vw, 14px); letter-spacing: .12em; color: var(--muted); }
@media (max-width: 760px) {
  .story-art { --sa-hand-w: clamp(150px, 44vw, 220px); --sa-dev-w: clamp(190px, 56vw, 260px); }
  .sa-sub { letter-spacing: .06em; }
}

/* remote-dev */
.remote-dev-figure { margin: 0; }
.remote-dev-figure img {
  display: block; width: 100%; height: auto; max-width: 1180px; margin: 0 auto;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--paper); box-shadow: var(--shadow);
}
.remote-dev-note { font-size: 13px; color: var(--faint); margin-top: 18px; }
@media (max-width: 760px) {
  .remote-dev-figure img { border-radius: var(--radius); }
  .remote-dev-note { font-size: 12.5px; }
}

/* ===== 安全保障 ===== */
.sec-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.sec-card { background: var(--card); padding: 28px 24px 30px; }
.sec-card__no { display: block; font-size: 13px; letter-spacing: .08em; color: #1e5a48; margin-bottom: 14px; font-variant-numeric: tabular-nums; }
.sec-card h3 { font-size: 18px; margin: 0 0 8px; color: var(--ink); }
.sec-card p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
#security .spec-note { margin-top: 20px; }
@media (max-width: 960px) { .sec-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .sec-cards { grid-template-columns: 1fr; } }

/* ===== Telegram 悬浮客服入口 ===== */
.tg-float, .tg-float:visited {
  position: fixed; z-index: 40; /* 低于 .site-header(50) 及其内的移动导航菜单(49) */
  right: calc(20px + env(safe-area-inset-right, 0px));
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 18px 0 14px; border-radius: 999px;
  background: var(--green); color: var(--on-dark);
  font-size: 14px; font-weight: 500; letter-spacing: .04em; line-height: 1; white-space: nowrap;
  box-shadow: 0 1px 2px rgba(27, 24, 18, .08), 0 10px 24px -8px rgba(21, 68, 58, .5);
  transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.tg-float svg { width: 20px; height: 20px; flex: none; }
.tg-float:hover { background: var(--green-deep); color: var(--on-dark); transform: translateY(-2px); box-shadow: 0 2px 4px rgba(27, 24, 18, .1), 0 14px 28px -8px rgba(21, 68, 58, .55); }
.tg-float:active { background: var(--ink); transform: translateY(0); }
.tg-float:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 999px; }
@media (max-width: 640px) {
  .tg-float { width: 48px; height: 48px; padding: 0; gap: 0; right: calc(16px + env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
  .tg-float svg { width: 22px; height: 22px; }
  .tg-float span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } /* 文字视觉隐藏，仍可被读屏读到 */
  .footer-bar .wrap { padding-bottom: calc(18px + 56px + env(safe-area-inset-bottom, 0px)); } /* 页脚底部留出按钮位置，避免遮挡版权/说明文字 */
}
@media (prefers-reduced-motion: reduce) {
  .tg-float { transition: none; }
  .tg-float:hover, .tg-float:active { transform: none; }
}

/* ===== 首屏修复：1024–1440 断点标题孤字与参数区对齐 ===== */
@media (min-width: 961px) {
  .hero .wrap { align-items: center; }
  .hero-copy { container-type: inline-size; width: 100%; max-width: 640px; }
  .hero h1 { font-size: clamp(38px, 9cqi, 64px); word-break: normal; text-wrap: wrap; }
  .hero-meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 32px; }
  .hero-meta div { min-width: 0; }
  .hero-meta dd { font-size: clamp(16px, 3.4cqi, 20px); line-height: 1.4; }
  .hero-art { align-self: center; }
}
@media (min-width: 961px) {
  .site-nav a { white-space: nowrap; }
}
@media (min-width: 961px) and (max-width: 1199px) {
  .site-nav { gap: 16px; font-size: 14px; }
}