:root {
  --paper: #f6f2e9;
  --card: #fbf8f1;
  --ink: #16150f;
  --muted: #5b574b;
  --line: #d9d2c0;
  --accent: #a5501a;
  --accent-soft: #efe0cf;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans CJK SC", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --w: 1080px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 17px/1.65 var(--sans); -webkit-font-smoothing: antialiased;
  background-image: radial-gradient(rgba(22,21,15,.045) 1px, transparent 1px);
  background-size: 22px 22px;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: var(--w); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 9; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; letter-spacing: -.012em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.3rem, 6.2vw, 4.1rem); letter-spacing: -.025em; }
h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
h3 { font-size: 1.28rem; line-height: 1.25; }
p { margin: 0 0 1em; }
.eyebrow { font: 600 .78rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 40em; }
.muted { color: var(--muted); }
section { padding: 72px 0; }
.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* header */
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(246,242,233,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; gap: 22px; height: 64px; }
.logo { font: 700 1.12rem/1 var(--serif); color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 9px; margin-right: auto; }
.logo svg { width: 24px; height: 24px; }
.nav { display: flex; gap: 22px; align-items: center; font-size: .94rem; }
.nav a { color: var(--ink); text-decoration: none; }
.nav a:hover { color: var(--accent); }
.nav a.btn, .nav a.btn:hover { color: var(--paper); }
.lang { display: flex; gap: 4px; font-size: .82rem; }
.lang a { color: var(--muted); text-decoration: none; padding: 3px 7px; border-radius: 6px; }
.lang a[aria-current="true"] { background: var(--ink); color: var(--paper); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 .98rem/1 var(--sans); text-decoration: none; padding: 14px 22px; border-radius: 10px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); box-shadow: inset 0 1px 0 rgba(255,255,255,.18), 0 1px 0 rgba(22,21,15,.6); transition: transform .15s ease, box-shadow .15s ease, background .15s; }
.btn:hover { color: var(--paper); transform: translateY(-1px); box-shadow: inset 0 1px 0 rgba(255,255,255,.18), 0 5px 14px rgba(22,21,15,.22); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: none; }
.btn.ghost:hover { background: var(--card); color: var(--ink); }
.btn.sm { padding: 10px 16px; font-size: .9rem; }
.btn.accent { background: var(--accent); border-color: var(--accent); }
.btn.on-dark { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn.on-dark:hover { color: var(--ink); }

/* hero */
.hero { padding: 64px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero .lede { margin-bottom: 28px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.facts { list-style: none; padding: 0; margin: 30px 0 0; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: .9rem; color: var(--muted); }
.facts li::before { content: ""; display: inline-block; width: 7px; height: 7px; background: var(--accent); border-radius: 50%; margin-right: 8px; vertical-align: 1px; }

/* use cases */
.uses { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin-top: 32px; border-top: 1px solid var(--ink); }
.use { padding: 26px 28px 26px 0; border-bottom: 1px solid var(--line); }
.use:nth-child(even) { padding-left: 28px; padding-right: 0; border-left: 1px solid var(--line); }
.use .ph { font: 500 .8rem/1.4 var(--mono); color: var(--accent); background: var(--accent-soft); padding: 3px 8px; border-radius: 5px; display: inline-block; margin-top: 4px; }
.use p { color: var(--muted); margin: 0 0 8px; }

/* why */
.why { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 48px; margin-top: 28px; }
.why div { padding-top: 14px; border-top: 2px solid var(--ink); }
.why p { color: var(--muted); margin: 0; }

/* compare */
.table-scroll { overflow-x: auto; margin: 26px 0 10px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
table { border-collapse: collapse; width: 100%; font-size: .96rem; min-width: 620px; }
th, td { text-align: left; padding: 15px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td, tr:last-child th { border-bottom: 0; }
thead th { font-family: var(--serif); font-size: 1.02rem; background: var(--paper); }
thead th.us, td.us { background: var(--accent-soft); }
tbody th { font-weight: 600; width: 22%; }
.note { font-size: .88rem; color: var(--muted); }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 34px; max-width: 820px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 30px 28px; display: flex; flex-direction: column; }
.plan.pro { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.plan.pro .muted, .plan.pro li { color: #d9d4c4; }
.plan h3 { margin-bottom: 4px; }
.price { font: 600 3rem/1 var(--serif); margin: 14px 0 4px; }
.price small { font: 400 1rem var(--sans); opacity: .7; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 26px; flex: 1; }
.plan li { padding: 7px 0 7px 26px; position: relative; font-size: .97rem; }
.plan li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 12px; height: 6px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.plan.pro li::before { border-color: #e8a46a; }
.plan .alt { margin-top: 12px; font-size: .88rem; text-align: center; }
.plan.pro .alt a { color: #f0c9a3; }

/* faq */
.faq { max-width: 760px; margin-top: 28px; border-top: 1px solid var(--ink); }
details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; padding: 18px 34px 18px 0; font-weight: 600; list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font: 400 1.5rem/1 var(--serif); color: var(--accent); }
details[open] summary::after { content: "–"; }
details p, details ul { color: var(--muted); margin: 0 0 18px; }

/* cta band */
.cta-band { background: var(--ink); color: var(--paper); text-align: center; padding: 76px 0; }
.cta-band p { color: #d9d4c4; max-width: 34em; margin: 0 auto 26px; }
.cta-band .cta-row { justify-content: center; }

/* footer */
.site-footer { padding: 48px 0 40px; font-size: .92rem; }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.foot h5 { margin: 0 0 10px; font: 600 .76rem/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.foot a { display: block; color: var(--ink); text-decoration: none; padding: 3px 0; }
.foot a:hover { color: var(--accent); }
.legal { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: .84rem; }

/* prose (guides & legal) */
.page-head { padding: 56px 0 8px; }
.prose { max-width: 740px; padding-bottom: 72px; }
.prose h2 { font-size: 1.75rem; margin-top: 2.2em; }
.prose h3 { margin-top: 1.7em; }
.prose li { margin-bottom: .45em; }
.prose code { font: .88em var(--mono); background: var(--accent-soft); padding: 1px 6px; border-radius: 4px; }
.prose pre { background: #1d1c16; color: #efe9d8; padding: 18px 20px; border-radius: 10px; overflow-x: auto; font: .84rem/1.6 var(--mono); }
.prose pre code { background: none; padding: 0; color: inherit; }
.prose .callout { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--accent); padding: 14px 18px; border-radius: 8px; margin: 1.4em 0; }
.prose .callout p:last-child { margin: 0; }
.meta { color: var(--muted); font-size: .9rem; }
.toc { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 20px; margin: 22px 0; font-size: .95rem; }
.toc ol { margin: 6px 0 0; padding-left: 20px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin: 28px 0 70px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; text-decoration: none; color: var(--ink); display: block; }
.card:hover { border-color: var(--ink); color: var(--ink); }
.card p { color: var(--muted); margin: 0; font-size: .95rem; }
.card h3 { margin-bottom: 8px; }
.scopes td:first-child { font: .8rem/1.5 var(--mono); word-break: break-all; width: 36%; }

/* mobile */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .foot { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  body { font-size: 16.5px; }
  section { padding: 52px 0; }
  .hero { padding-top: 40px; }
  .nav .hide-m { display: none; }
  .bar { gap: 12px; }
  .uses, .why, .plans { grid-template-columns: 1fr; }
  .use:nth-child(even) { padding-left: 0; border-left: 0; }
  .use { padding-right: 0; }
  .cta-row .btn { flex: 1 1 100%; }
}
@media (max-width: 420px) {
  .logo span { display: none; }
  .foot { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* ---- 2026-10-12 文案审核：排版补丁（只管文字宽度、字号、新加的几块，不动动效） ---- */
/* 一行不超过约 68 个字符 */
.lede { max-width: 34em; }
.prose p, .prose li, .faq-a p, .use p, .why p, .tp-scene, .tp-problem, .tp-callout, .cta-band p { max-width: 68ch; }
/* 价格卡下面的全家桶窄栏和付款小字 */
.plan-all { display: flex; align-items: center; justify-content: space-between; gap: 18px 28px; flex-wrap: wrap; max-width: 820px; margin-top: 20px; padding: 18px 22px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.plan-all strong { font-family: var(--serif); font-size: 1.15rem; }
.plan-all-p { margin-left: 8px; font-weight: 600; }
.plan-all p { margin: 4px 0 0; color: var(--muted); }
.plan-fine { max-width: 820px; margin-top: 14px; }
/* 页脚邮箱下面那句回复时间 */
.foot span.muted { display: block; font-size: .88rem; margin-top: 2px; }
/* 工具页：场景一段话给大位置，麻烦清单缩成普通列表 */
.tp-scene { max-width: 34em !important; font-family: var(--serif); font-size: clamp(1.25rem, 2.6vw, 1.6rem); line-height: 1.4; margin: 18px 0 18px; }
.tp-problem { margin: 0; padding-left: 1.2em; color: var(--muted); }
.tp-problem li { margin: 4px 0; }
.tp-free { margin-top: 16px; }
.tp-rivals { max-width: 620px; }
.tp-rivals table { min-width: 0; }
/* 手机：正文、小字、表格都不小于 16px */
@media (max-width: 680px) {
  html .facts, html .note, html .ex-note, html .meta, html .tool-line, html .who, html .plan li, html .plan .alt, html table, html .faq summary, html .site-footer, html .legal, html .foot span.muted, html .card p, html .toc { font-size: 16px; }
  .lede { font-size: 1.1rem; }
}

/* ============ FX 层：招牌交互、滚动叙事、案例库、动效 ============ */
:root {
  --stage: #191710;
  --stage-2: #24211a;
  --amber: #e8a46a;
  --spring: cubic-bezier(.22, 1, .36, 1); /* 不回弹：进场一律 ease-out */
  --out: cubic-bezier(.16, 1, .3, 1);
  --shadow-1: 0 1px 2px rgba(22,21,15,.08), 0 8px 24px -12px rgba(22,21,15,.25);
  --shadow-2: 0 2px 4px rgba(22,21,15,.1), 0 24px 48px -20px rgba(22,21,15,.4);
}
::selection { background: var(--accent); color: #fffdf8; }
input, textarea { caret-color: var(--accent); }
html { scrollbar-color: #b9ae93 var(--paper); }
h1, h2 { text-wrap: balance; }
.lede, .use p, .why p { text-wrap: pretty; }
[data-count] { font-variant-numeric: tabular-nums; }

/* 小改：header、按钮质感 */
.site-header { transition: box-shadow .3s; }
.btn { will-change: transform; }
.btn.accent, .btn { transition: transform .35s var(--out), box-shadow .25s ease, background .2s; }
.btn:active { transform: translateY(0) scale(.97); transition-duration: .08s; }
.btn.primary { background: var(--accent); border-color: #8a3f10; box-shadow: inset 0 1px 0 rgba(255,255,255,.28), 0 1px 0 #6e3009, 0 10px 24px -10px rgba(165,80,26,.7); }
.btn.primary:hover { box-shadow: inset 0 1px 0 rgba(255,255,255,.3), 0 1px 0 #6e3009, 0 14px 30px -10px rgba(165,80,26,.8); }

/* ---------- 进场显影（只在 JS 就绪后启用，LCP 文字不参与） ---------- */
html.js [data-reveal] { opacity: 0; transform: translateY(22px); filter: blur(8px); transition: opacity .8s var(--out), transform .9s var(--out), filter .8s var(--out); transition-delay: var(--d, 0ms); }
html.js [data-reveal].in { opacity: 1; transform: none; filter: none; }
html.js.lite [data-reveal] { filter: none; transform: translateY(14px); }
html.reveal-fallback [data-reveal] { opacity: 1 !important; transform: none !important; filter: none !important; }

/* ---------- 首屏 ---------- */
.hero { padding: 48px 0 72px; position: relative; }
.hero .wrap { max-width: 1240px; }
.hero-grid { grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr); gap: 44px; }
.hero h1 { font-size: clamp(2.5rem, 4.5vw, 4rem); line-height: 1.04; letter-spacing: -.03em; font-weight: 650; }
.hero .lede { max-width: 30em; }
@media (max-width: 680px) { .hero h1 { font-size: 1.95rem; line-height: 1.08; letter-spacing: -.025em; } .hero .lede { font-size: 1.05rem; } }
.facts li b { color: var(--ink); font-weight: 600; }

/* ---------- 招牌：表单 → PDF 变身舞台 ---------- */
.stage { position: relative; container-type: inline-size; border-radius: 28px; background: linear-gradient(160deg, var(--stage-2), var(--stage)); aspect-ratio: 1.1 / 1; box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255,255,255,.07); isolation: isolate; user-select: none; overflow: hidden; }
.glow { position: absolute; width: 78cqw; height: 78cqw; border-radius: 50%; background: radial-gradient(circle, rgba(232,164,106,.30), rgba(232,164,106,0) 64%); pointer-events: none; will-change: transform; }
.glow.g1 { left: 38cqw; top: 6cqw; animation: glow1 15s ease-in-out infinite alternate; }
.glow.g2 { left: -18cqw; top: 30cqw; width: 64cqw; height: 64cqw; background: radial-gradient(circle, rgba(201,140,70,.2), rgba(201,140,70,0) 64%); animation: glow2 19s ease-in-out infinite alternate; }
@keyframes glow1 { from { transform: translate(-8cqw, 4cqw) scale(.92); } to { transform: translate(10cqw, -6cqw) scale(1.1); } }
@keyframes glow2 { from { transform: translate(0, 0) scale(1); } to { transform: translate(14cqw, -8cqw) scale(1.15); } }
.stage.paused .glow { animation-play-state: paused; }
.stage-fx { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 11; }
.stage::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: url(/noise.png); opacity: .09; mix-blend-mode: screen; pointer-events: none; z-index: 9; }
.stage-in { position: absolute; inset: 0; transform-style: flat; transition: transform .6s var(--out); will-change: transform; }
.stage-glare { position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: 8; opacity: 0; transition: opacity .4s; background: radial-gradient(520px circle at var(--mx, 50%) var(--my, 30%), rgba(255,235,205,.13), transparent 60%); }
.stage.hot .stage-glare { opacity: 1; }
.stage-cap { position: absolute; left: 0; right: 0; bottom: 3.2cqw; text-align: center; font: 500 1.9cqw/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: rgba(246,242,233,.38); }

/* 左：表单卡 */
.fcard { position: absolute; left: 4.2cqw; top: 6cqw; width: 37cqw; background: #fbf8f1; border-radius: 1.6cqw; padding: 2.4cqw 2.6cqw 2.6cqw; box-shadow: 0 2.4cqw 5cqw -2cqw rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.06); z-index: 3; transform-origin: 50% 60%; }
.fcard::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1cqw; border-radius: 1.6cqw 1.6cqw 0 0; background: var(--accent); }
.fc-kick { font: 600 1.55cqw/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: .8cqw 0 .8cqw; }
.fc-title { font: 600 3.1cqw/1.15 var(--serif); margin: 0 0 2cqw; color: var(--ink); }
.fcard label { display: block; margin-bottom: 1.7cqw; font: 600 1.5cqw/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.fcard input, .fc-sel { display: block; width: 100%; margin-top: .9cqw; padding: .7cqw 0 .8cqw; border: 0; border-bottom: 1px solid #b9ae93; background: transparent; font: 500 2.35cqw/1.25 var(--sans); letter-spacing: 0; text-transform: none; color: var(--ink); border-radius: 0; outline: none; transition: border-color .2s, box-shadow .2s; }
.fcard input:focus { border-bottom-color: var(--accent); box-shadow: 0 1px 0 var(--accent); }
.fc-sel { color: #4a463a; display: flex; justify-content: space-between; }
.fc-sel::after { content: ""; width: 1.1cqw; height: 1.1cqw; border-right: 1.5px solid #8a8372; border-bottom: 1.5px solid #8a8372; transform: translateY(-.3cqw) rotate(45deg); }
.fc-submit { position: relative; overflow: hidden; margin-top: .8cqw; font: 600 2.1cqw/1 var(--sans); padding: 1.5cqw 3.2cqw; border: 0; border-radius: 1cqw; background: var(--accent); color: #fffdf8; cursor: pointer; box-shadow: inset 0 1px 0 rgba(255,255,255,.25), 0 1px 0 #6e3009; transition: transform .2s var(--out); }
.fc-submit:hover { transform: translateY(-1px); }
.fc-submit .rip { position: absolute; left: 50%; top: 50%; width: 6cqw; height: 6cqw; margin: -3cqw; border-radius: 50%; background: rgba(255,255,255,.5); opacity: 0; pointer-events: none; }
.ghost-cur { position: absolute; z-index: 12; left: 0; top: 0; width: 3.2cqw; height: 3.2cqw; opacity: 0; pointer-events: none; filter: drop-shadow(0 .4cqw .5cqw rgba(0,0,0,.45)); }

/* 右：证书插槽 */
.cslot { position: absolute; right: 3cqw; top: 56%; width: 68cqw; margin-top: -24cqw; aspect-ratio: 1.414 / 1; z-index: 4; transform: perspective(1500px) rotateX(calc(2deg + var(--ptx, 0deg))) rotateY(calc(-5deg + var(--pty, 0deg))); transition: transform .5s var(--out); }
.stage[data-phase="idle"] .cslot { z-index: 2; }
.cslot-ghost { position: absolute; inset: 0; border-radius: .8cqw; display: none; border: 1px solid rgba(246,242,233,.13); background: linear-gradient(rgba(246,242,233,.05), rgba(246,242,233,.02)); box-shadow: 0 2cqw 5cqw -2cqw rgba(0,0,0,.5); }
.cslot-ghost::before { content: ""; position: absolute; inset: 2cqw; border: 1px dashed rgba(246,242,233,.12); border-radius: .4cqw; }
.cslot-ghost i { position: absolute; left: 50%; transform: translateX(-50%); height: 1.2cqw; border-radius: 1cqw; background: rgba(246,242,233,.1); }
.cslot-ghost i:nth-child(1) { top: 20%; width: 46%; height: 2.2cqw; } .cslot-ghost i:nth-child(2) { top: 40%; width: 30%; background: rgba(232,164,106,.2); } .cslot-ghost i:nth-child(3) { top: 52%; width: 52%; } .cslot-ghost i:nth-child(4) { top: 60%; width: 40%; }
.cslot-ghost b { position: absolute; left: 50%; bottom: 8%; width: 11%; aspect-ratio: 1; margin-left: -5.5%; border-radius: 50%; border: 1px dashed rgba(232,164,106,.3); }
.stage[data-phase="idle"] .cslot-ghost { display: flex; }
.stage[data-phase="idle"] .cert3d, .stage[data-phase="idle"] .cshadow, .stage[data-phase="idle"] .cstamp, .stage[data-phase="idle"] .env, .stage[data-phase="idle"] .sent-chip { visibility: hidden; }
.stage:not([data-sent]) .sent-chip { opacity: 0; }

.cshadow { position: absolute; inset: 0; border-radius: 2px; z-index: 0; box-shadow: 0 1px 1px rgba(0,0,0,.5), 0 8px 14px -4px rgba(0,0,0,.5), 0 30px 50px -14px rgba(0,0,0,.75), 0 0 60px -10px rgba(232,164,106,.18); }
.cert3d { position: absolute; inset: 0; transform-origin: 50% 16.7%; will-change: transform; z-index: 2; container-type: inline-size; }
.cfoil { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 5; }
.cfoil i { position: absolute; top: -25%; bottom: -25%; left: 0; width: 30%; opacity: 0; transform: translateX(-140%) skewX(-18deg); background: linear-gradient(90deg, rgba(255,226,140,0), rgba(255,226,140,.32) 45%, rgba(255,244,200,.5) 52%, rgba(255,226,140,.32) 60%, rgba(255,226,140,0)); mix-blend-mode: multiply; }
.cink { position: absolute; left: 50%; bottom: 6.2cqw; width: 26cqw; height: 26cqw; margin: 0 0 -6cqw -13cqw; border-radius: 50%; z-index: 5; opacity: 0; pointer-events: none; background: radial-gradient(circle, rgba(165,80,26,.55), rgba(165,80,26,.18) 45%, rgba(165,80,26,0) 70%); }
.cs { position: absolute; left: 0; right: 0; top: 0; height: 33.4%; transform-style: preserve-3d; transform-origin: 50% 0; }
.cs .cs { top: 100%; height: 100%; }
.cclip { position: absolute; inset: 0; overflow: hidden; backface-visibility: hidden; -webkit-backface-visibility: hidden; background: #fffdf8; }
.cback { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; transform: rotateX(180deg); background: linear-gradient(#e4dccb, #f0e9d9); }
.cshade { position: absolute; inset: 0; background: #1a1006; opacity: 0; pointer-events: none; z-index: 5; }
.cface { position: absolute; left: 0; width: 100%; height: 300%; top: calc(var(--i) * -100%); background: #fffdf8 url(/noise.png); background-blend-mode: soft-light; font-family: var(--serif); color: #1b1a16; }
/* 证书版面（单位 cqw，随舞台缩放） */
.cb1 { position: absolute; inset: 2.16cqw; border: 1px solid var(--accent); }
.cb2 { position: absolute; inset: 3.33cqw; border: 0.74cqw double #1b1a16; opacity: .85; }
.cin { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; text-align: center; padding-top: 9.41cqw; }
.ck { font: 600 2.35cqw/1 var(--sans); letter-spacing: .3em; color: var(--accent); text-transform: uppercase; margin: 0; }
.ct { font: 600 6.47cqw/1.12 var(--serif); margin: 2.35cqw 0 2.94cqw; letter-spacing: -.01em; white-space: nowrap; }
.cp { font: 2.25cqw/1 var(--sans); letter-spacing: .18em; color: #6b6657; margin: 0; text-transform: uppercase; }
.cn { font: italic 400 9.21cqw/1.25 var(--serif); margin: 1.57cqw 0 0.39cqw; padding: 0 5.88cqw 0.98cqw; border-bottom: 0.27cqw solid #c9a46a; min-width: 43.12cqw; max-width: 78.4cqw; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cd { font: 2.65cqw/1.5 var(--serif); color: #4a463a; margin: 1.96cqw 0 0; max-width: 66.64cqw; }
.crow { position: absolute; left: 12.74cqw; right: 12.74cqw; bottom: 8.62cqw; display: flex; justify-content: space-between; align-items: flex-end; }
.crow span { width: 27.44cqw; text-align: center; font: 600 1.92cqw/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: #6b6657; }
.crow b { display: block; font: 400 3.92cqw/1.4 var(--serif); letter-spacing: 0; text-transform: none; font-style: italic; color: #1b1a16; border-bottom: 0.2cqw solid #1b1a16; margin-bottom: 1.18cqw; white-space: nowrap; }
.crow b.sig { font-family: "Snell Roundhand", "Apple Chancery", "Brush Script MT", cursive; font-size: 5.1cqw; font-style: normal; }
.ccorner { position: absolute; width: 9.8cqw; height: 9.8cqw; }
.ccorner svg { width: 100%; height: 100%; display: block; }
.ccorner.tl { left: 3.33cqw; top: 3.33cqw; } .ccorner.tr { right: 3.33cqw; top: 3.33cqw; transform: scaleX(-1); } .ccorner.bl { left: 3.33cqw; bottom: 3.33cqw; transform: scaleY(-1); } .ccorner.br { right: 3.33cqw; bottom: 3.33cqw; transform: scale(-1); }
.cstamp { position: absolute; left: 50%; bottom: 6.27cqw; width: 18.42cqw; height: 18.42cqw; margin-left: -9.21cqw; z-index: 6; transform: rotate(-9deg); filter: drop-shadow(0 0.59cqw 0.98cqw rgba(60,20,0,.35)); }
.cstamp svg { width: 100%; height: 100%; display: block; }
.cring { position: absolute; left: 50%; bottom: 6.27cqw; width: 18.42cqw; height: 18.42cqw; margin-left: -9.21cqw; border-radius: 50%; border: 0.39cqw solid var(--accent); opacity: 0; z-index: 5; pointer-events: none; }

/* 信封 */
.env { position: absolute; left: 50%; top: 50%; width: 38cqw; height: 25cqw; margin: -12.5cqw 0 0 -19cqw; opacity: 0; pointer-events: none; }
.env-b { z-index: 1; } .env-f { z-index: 7; }
.env-back { position: absolute; inset: 0; border-radius: .8cqw; background: #cdb98f; box-shadow: 0 1.2cqw 2.4cqw -1cqw rgba(0,0,0,.55); }
.env-front { position: absolute; inset: 0; z-index: 8; background: linear-gradient(#efe1c3, #e3d2ac); clip-path: polygon(0 20%, 50% 60%, 100% 20%, 100% 100%, 0 100%); border-radius: 0 0 .8cqw .8cqw; }
.env-flap.fo { opacity: 1; transform: rotateX(180deg); }
.env-front::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top right, transparent 49.6%, rgba(90,60,20,.16) 50%, transparent 50.6%), linear-gradient(to top left, transparent 49.6%, rgba(90,60,20,.16) 50%, transparent 50.6%); clip-path: polygon(0 20%, 50% 60%, 100% 20%, 100% 100%, 0 100%); }
.env-flap { opacity: 0; position: absolute; left: 0; right: 0; top: 0; height: 62%; z-index: 9; transform-origin: 50% 0; background: linear-gradient(#e9d9b8, #dcc79c); clip-path: polygon(0 0, 100% 0, 50% 100%); backface-visibility: visible; border-radius: .8cqw .8cqw 0 0; }
.sent-chip { position: absolute; left: 50%; bottom: 3cqw; transform: translateX(-50%); z-index: 10; display: flex; align-items: center; gap: 1cqw; background: rgba(251,248,241,.96); color: var(--ink); padding: 1.1cqw 2.2cqw 1.1cqw 1.4cqw; border-radius: 9cqw; font: 500 1.95cqw/1 var(--sans); white-space: nowrap; box-shadow: 0 1.2cqw 3cqw -1cqw rgba(0,0,0,.6); }
.sent-chip svg { width: 2.6cqw; height: 2.6cqw; flex: none; }
.sent-chip b { font-weight: 600; }

/* ---------- 三步流程里的小图 ---------- */
.mini { flex: none; width: 150px; height: 104px; border-radius: 10px; background: #fffdf8; border: 1px solid var(--line); padding: 12px 12px 0; overflow: hidden; position: relative; font: 500 11px/1 var(--sans); }
.mini .row { display: flex; align-items: center; gap: 6px; margin-bottom: 9px; color: var(--muted); }
.mini .row i { font-style: normal; width: 44px; flex: none; font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.mini .t { display: inline-block; overflow: hidden; white-space: nowrap; color: var(--ink); border-right: 1px solid transparent; width: 6.5em; }
.scene.on .mini-form .t { width: 0; animation: typ 1.4s steps(11) .15s forwards; border-right-color: var(--accent); }
.scene.on .mini-form .row:nth-child(2) .t { animation-delay: .8s; }
.scene.on .mini-form .row:nth-child(3) .t { animation-delay: 1.4s; }
@keyframes typ { to { width: 6.5em; border-right-color: transparent; } }
.mini-doc .chip { display: inline-block; font: 500 10px/1 var(--mono); color: var(--accent); background: var(--accent-soft); padding: 4px 6px; border-radius: 4px; position: relative; }
.mini-doc .chip .v { position: absolute; left: 6px; top: 4px; color: var(--ink); background: #fffdf8; opacity: 0; font-family: var(--sans); }
.scene.on .mini-doc .chip .v { animation: fillin .5s var(--out) forwards; animation-delay: calc(.4s + var(--k, 0s)); }
@keyframes fillin { to { opacity: 1; } }
.mini-doc .ln { height: 5px; border-radius: 3px; background: #e5dfcd; margin-top: 8px; }
.mini-pdf { display: flex; align-items: center; justify-content: center; padding: 0; background: var(--accent-soft); }
.mini-pdf .pg { width: 46px; height: 62px; background: #fffdf8; border: 1.5px solid var(--accent); border-radius: 3px; position: relative; box-shadow: 0 6px 14px -6px rgba(0,0,0,.35); }
.mini-pdf .pg::before { content: "PDF"; position: absolute; left: 0; right: 0; top: 0; background: var(--accent); color: #fff; font: 700 8px/12px var(--sans); text-align: center; }
.mini-pdf .pg::after { content: ""; position: absolute; left: 7px; right: 7px; top: 22px; height: 18px; background: repeating-linear-gradient(#d9d2c0 0 3px, transparent 3px 7px); }
.scene.on .mini-pdf .pg { animation: sendpg 2.2s var(--out) .3s infinite; }
@keyframes sendpg { 0% { transform: translateX(-70px) rotate(-6deg); opacity: 0; } 30%, 70% { transform: none; opacity: 1; } 100% { transform: translateX(70px) rotate(6deg); opacity: 0; } }

/* ---------- 3D 倾斜卡片 + 高光 ---------- */
.tilt { transform: perspective(900px) translateY(var(--lift, 0px)) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .6s var(--out), box-shadow .4s; position: relative; transform-style: flat; }
.tilt.hot { transition: transform .12s linear, box-shadow .4s; }
.tilt .glare { position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .35s; background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 50%), rgba(255,244,226,.5), transparent 62%); mix-blend-mode: soft-light; z-index: 3; }
.tilt.hot .glare { opacity: 1; }

/* ---------- 价格卡：悬停光扫 ---------- */
.plan { position: relative; overflow: hidden; transition: transform .5s var(--out), box-shadow .5s; }
.plan::after { content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%; transform: translateX(-120%) skewX(-18deg); background: linear-gradient(90deg, transparent, rgba(165,80,26,.1), transparent); pointer-events: none; }
.plan.pro::after { background: linear-gradient(90deg, transparent, rgba(255,235,205,.16), transparent); }
.plan:hover { --lift: -4px; box-shadow: var(--shadow-2); }
.plan:hover::after { transform: translateX(520%) skewX(-18deg); transition: transform 1s var(--out); }
.price [data-count] { display: inline-block; min-width: 1.1ch; }

/* ---------- 样张（首页一排 + 案例库共用） ---------- */
.strip-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; }
.strip-head .btn { margin-bottom: 8px; }
.strip { display: flex; gap: 22px; overflow-x: auto; padding: 36px 20px 40px; margin: 0 -20px; scroll-snap-type: x proximity; scroll-padding-left: 20px; scrollbar-width: none; }
.strip::-webkit-scrollbar { display: none; }
.strip .xcard { flex: 0 0 236px; scroll-snap-align: start; }
.xcard { display: block; text-decoration: none; color: var(--ink); }
.xcard:hover { color: var(--ink); }
.desk { position: relative; aspect-ratio: 4 / 5; border-radius: 14px; background: linear-gradient(#e9e2d0, #e1d9c4); display: flex; align-items: center; justify-content: center; padding: 8%; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(22,21,15,.06); }
.desk img { width: auto; height: auto; max-width: 100%; max-height: 100%; box-shadow: 0 1px 2px rgba(22,21,15,.2), 0 14px 26px -12px rgba(22,21,15,.5); background: #fff; border-radius: 2px; transition: transform .6s var(--out); }
.xcard:hover .desk img { transform: translateY(-4px) scale(1.025); }
.xcard h3 { font-size: 1.12rem; margin: 14px 2px 2px; }
.xcard .tagline { color: var(--muted); font-size: .88rem; margin: 0 2px; }

/* ---------- 案例库页面 ---------- */
.ex-note { margin: 18px 0 0; font-size: .9rem; color: var(--muted); max-width: 46em; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 34px 0 6px; }
.filters button { font: 600 .9rem/1 var(--sans); padding: 11px 18px; border-radius: 99px; border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; transition: background .25s, color .25s, border-color .25s, transform .3s var(--spring); }
.filters button:hover { border-color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.filters button:active { transform: scale(.95); }
.xgrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 34px 26px; margin: 26px 0 80px; }
.xcard .chips { display: flex; flex-wrap: wrap; gap: 5px; margin: 10px 2px 0; }
.xcard .chips span { font: 500 .74rem/1 var(--mono); color: var(--accent); background: var(--accent-soft); padding: 5px 7px; border-radius: 5px; }
.xcard.hide { display: none; }
.xcard .who { font-size: .9rem; color: var(--muted); margin: 10px 2px 0; text-wrap: pretty; }
.xcard .cat { font: 600 .72rem/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 14px 2px 0; }
.xcard .zoom { position: absolute; right: 12px; bottom: 12px; width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: var(--paper); display: flex; align-items: center; justify-content: center; opacity: 0; transform: scale(.7); transition: opacity .3s, transform .4s var(--spring); }
.xcard:hover .zoom, .xcard:focus-visible .zoom { opacity: 1; transform: none; }

/* 翻纸预览 */
.lb { position: fixed; inset: 0; z-index: 50; display: none; align-items: center; justify-content: center; padding: 24px; }
.lb.open { display: flex; }
.lb-bg { position: absolute; inset: 0; background: rgba(18,16,10,.78); backdrop-filter: blur(6px); opacity: 0; transition: opacity .35s; }
.lb.show .lb-bg { opacity: 1; }
.lb-box { position: relative; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 36px; align-items: center; width: min(1080px, 100%); max-height: 100%; perspective: 2200px; }
.lb-book { position: relative; display: flex; justify-content: center; max-height: calc(100vh - 56px); }
.lb-sheet { max-height: calc(100vh - 56px); max-width: 100%; width: auto; height: auto; background: #fff; border-radius: 3px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.7); transform-origin: 0 50%; will-change: transform; object-fit: contain; }
.lb-info { color: #f6f2e9; will-change: transform, opacity; }
.lb-info h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-bottom: 12px; }
.lb-info .lbl { font: 600 .72rem/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--amber); margin: 22px 0 10px; }
.lb-info .chips { display: flex; flex-wrap: wrap; gap: 6px; }
.lb-info .chips span { font: 500 .8rem/1 var(--mono); color: #f0c9a3; border: 1px solid rgba(240,201,163,.35); padding: 6px 9px; border-radius: 6px; }
.lb-info p { color: #d9d4c4; margin: 0; font-size: .98rem; }
.lb-info .lb-how { color: #a9a28f; font-size: .85rem; margin-top: 20px; }
.lb-info .cta-row { margin-top: 24px; }
.lb-x, .lb-nav { position: absolute; z-index: 3; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(246,242,233,.25); background: rgba(25,23,16,.6); color: #f6f2e9; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background .2s, transform .3s var(--spring); }
.lb-x:hover, .lb-nav:hover { background: rgba(246,242,233,.18); }
.lb-x { right: 0; top: 0; transform: translate(0, -56px); }
.lb-nav.prev { left: -4px; bottom: -56px; } .lb-nav.next { left: 52px; bottom: -56px; }
.lb-count { position: absolute; left: 116px; bottom: -44px; color: #a9a28f; font: 500 .85rem/1 var(--mono); }
body.lb-lock { overflow: hidden; }

/* ---------- 磁吸按钮 ---------- */
[data-magnet] { transition: translate .5s var(--spring), transform .35s var(--out), box-shadow .25s ease, background .2s; }
[data-magnet].hot { transition: translate .12s linear, transform .35s var(--out), box-shadow .25s ease, background .2s; }
.site-header.scrolled { box-shadow: 0 10px 30px -22px rgba(22,21,15,.5); }
.fcard label.typing input { border-bottom-color: var(--accent); box-shadow: 0 1px 0 var(--accent); }

/* ---------- 响应式 ---------- */
@media (min-width: 1000px) { .strip { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); overflow: visible; padding-left: 0; padding-right: 0; margin: 0; } .strip .xcard { flex: none; } }
@media (max-width: 1080px) { .xgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 960px) {
  .hero-grid { display: flex; flex-direction: column; gap: 0; }
  .hero-copy { display: contents; }
  .hero-copy h1 { order: 1; margin-bottom: 16px; }
  .stage { order: 2; width: 100%; max-width: 640px; margin: 0 auto 24px; }
  .hero-copy .lede { order: 3; }
  .hero-copy .cta-row { order: 4; }
  .hero-copy .facts { order: 5; }
  .lb-box { grid-template-columns: 1fr; gap: 16px; overflow-y: auto; }
  .lb-sheet { max-height: 56vh; }
  .lb-book { max-height: 56vh; }
  .lb-x { transform: none; right: 4px; top: 4px; }
  .lb-nav.prev, .lb-nav.next, .lb-count { position: static; }
}
@media (max-width: 680px) {
  .hero { padding: 18px 0 40px; }
  .stage { aspect-ratio: 1 / 1; border-radius: 20px; max-width: none; }
  .fcard { left: 4cqw; width: 60cqw; top: 4cqw; padding: 3.6cqw 4cqw 4cqw; border-radius: 2.4cqw; }
  .fcard::before { border-radius: 2.4cqw 2.4cqw 0 0; height: 1.4cqw; }
  .fc-kick, .fc-course { display: none; } .fc-title { font-size: 5cqw; margin: 1.4cqw 0 3cqw; }
  .fcard label { font-size: 2.3cqw; margin-bottom: 2.6cqw; }
  .fcard input, .fc-sel { font-size: 3.7cqw; margin-top: 1cqw; padding: 1cqw 0; }
  .fc-submit { font-size: 3.4cqw; padding: 2.2cqw 5.4cqw; border-radius: 1.8cqw; margin-top: .4cqw; }
  .ghost-cur { width: 5cqw; height: 5cqw; }
  .cslot { right: 4cqw; width: 74cqw; top: auto; bottom: 5cqw; margin: 0; transform: none; }
  .env { width: 46cqw; height: 30cqw; margin: -15cqw 0 0 -23cqw; }
  .stage-cap { display: none; }
  .sent-chip { bottom: 3cqw; font-size: 3.2cqw; padding: 1.8cqw 3.6cqw 1.8cqw 2.2cqw; gap: 1.6cqw; }
  .sent-chip svg { width: 4.6cqw; height: 4.6cqw; }
  .xgrid { grid-template-columns: 1fr; gap: 28px; }
  .xcard .desk { aspect-ratio: 5 / 4; }
  .strip .xcard { flex-basis: 70vw; max-width: 270px; }
  .strip .xcard .desk { aspect-ratio: 4 / 5; }
  .lb { padding: 14px; }
}
@media (hover: none), (pointer: coarse) { .tilt { transform: none !important; } .tilt .glare { display: none; } }
@media (prefers-reduced-motion: reduce) {
  html.js [data-reveal] { opacity: 1; transform: none; filter: none; transition: none; }
  ::view-transition-old(root), ::view-transition-new(root) { animation: none; }
  .tilt, .tilt.hot, [data-magnet], .plan, .plan:hover { transition: none; transform: none !important; }
  .plan:hover::after { transition: none; }
  .desk img { transition: none; }
  .scene.on .mini-pdf .pg { animation: none; }
  .scene.on .mini-form .t { animation: none; width: 6.5em; }
  .scene.on .mini-doc .chip .v { animation: none; opacity: 1; }
}
/* 首屏只留一个流体背景：舞台里的两团光球关掉 */
.glow { display: none; }
@media (prefers-reduced-motion: reduce) { .glow { animation: none !important; } .cslot { transition: none; } }

/* ============ 全站交互层（2026-10-13）：转场、进度线、光圈、页头、首屏、工具墙、换场、横滚、揭幕、价格、问答、页脚 ============
   规则：只动 transform / opacity；进场一律 ease-out 不回弹；手机（html.lite）降级；减少动画时全部静止在最终状态。 */
:root { --ease: cubic-bezier(.16, 1, .3, 1); --io: cubic-bezier(.7, 0, .2, 1); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 页面跳转转场：幕布盖满再跳，新页撤走 ---------- */
.pt { position: fixed; inset: 0; z-index: 200; background: var(--ink); color: var(--paper); display: flex; align-items: center; justify-content: center; transform: translateY(100%); visibility: hidden; pointer-events: none; }
.pt-mark { display: flex; align-items: center; gap: 12px; font: 600 1.5rem/1 var(--serif); opacity: 0; transform: translateY(12px); }
.pt-mark svg { width: 34px; height: 34px; }
html.pt-go .pt { visibility: visible; transform: none; transition: transform .5s var(--io); pointer-events: auto; }
html.pt-go .pt-mark { opacity: 1; transform: none; transition: opacity .3s .2s, transform .45s .15s var(--ease); }
html.pt-on .pt { visibility: visible; transform: none; }
html.pt-on .pt-mark { opacity: 1; transform: none; }
html.pt-leave .pt { visibility: visible; transform: translateY(-100%); transition: transform .65s var(--io); }
html.pt-leave .pt-mark { opacity: 0; transition: opacity .2s; }

/* ---------- 顶部滚动进度细线 ---------- */
.sbar { position: fixed; left: 0; top: 0; width: 100%; height: 2px; background: var(--accent); transform-origin: 0 50%; transform: scaleX(0); z-index: 60; pointer-events: none; }

/* ---------- 慢半拍的鼠标光圈（只在电脑上） ---------- */
.cur { position: fixed; left: 0; top: 0; width: 30px; height: 30px; margin: -15px 0 0 -15px; border-radius: 50%; border: 1.5px solid rgba(165,80,26,.55); pointer-events: none; z-index: 150; opacity: 0; transition: opacity .3s, border-color .3s, background-color .3s; will-change: transform; }
.cur.on { opacity: 1; }
.cur.big { border-color: rgba(165,80,26,.35); background-color: rgba(165,80,26,.07); }
.cur.down { border-color: var(--accent); }

/* ---------- 页头：毛玻璃、下滚收起上滚出现、当前项下划线 ---------- */
.site-header { background: rgba(246,242,233,.74); -webkit-backdrop-filter: blur(14px) saturate(1.4); backdrop-filter: blur(14px) saturate(1.4); transition: transform .45s var(--ease), box-shadow .3s; }
.site-header.hide { transform: translateY(-101%); }
.nav { position: relative; }
.nav-ink { position: absolute; left: 0; bottom: -6px; width: 100px; height: 2px; border-radius: 2px; background: var(--accent); transform-origin: 0 50%; transform: translateX(var(--x, 0)) scaleX(var(--s, 0)); opacity: 0; transition: transform .45s var(--ease), opacity .25s; pointer-events: none; }
.nav-ink.on { opacity: 1; }

/* ---------- 按钮：按下回弹（JS 加一段很短的回弹） ---------- */
.btn { position: relative; }

/* ---------- 首屏：流体渐变背景 + 拆字标题 ---------- */
.hero { isolation: isolate; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; background: var(--paper); }
.hero-bg::before { content: ""; position: absolute; inset: -30%; background:
  radial-gradient(40% 45% at 30% 35%, rgba(232,164,106,.30), transparent 70%),
  radial-gradient(35% 40% at 72% 60%, rgba(239,224,207,.95), transparent 70%),
  radial-gradient(30% 35% at 55% 20%, rgba(214,150,96,.18), transparent 70%);
  animation: heroflow 22s ease-in-out infinite alternate; will-change: transform; }
.hero-bg::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 90px; background: linear-gradient(rgba(246,242,233,0), var(--paper)); }
@keyframes heroflow { 0% { transform: translate3d(-4%, -2%, 0) rotate(0deg) scale(1); } 50% { transform: translate3d(3%, 2%, 0) rotate(6deg) scale(1.08); } 100% { transform: translate3d(-2%, 4%, 0) rotate(-4deg) scale(1.02); } }
.hero-bg canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1.2s ease; z-index: 1; }
.hero-bg.gl canvas { opacity: 1; }
.hero-bg.gl::before { animation: none; opacity: 0; }

.split .w { display: inline-block; overflow: hidden; vertical-align: top; padding: 0 .02em .14em; margin: 0 -.02em -.14em; }
.split .c { display: inline-block; transform: translateY(108%); animation: charup .95s var(--ease) forwards; animation-delay: calc(var(--i) * 22ms + 60ms); }
@keyframes charup { to { transform: none; } }

/* ---------- 工具墙 ---------- */
.twall { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 34px; }
.tool { position: relative; display: block; min-height: 232px; padding: 18px 18px 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); color: var(--ink); text-decoration: none; overflow: hidden; transition: border-color .3s, box-shadow .4s var(--ease), translate .5s var(--ease); }
.tool:hover, .tool:focus-visible { color: var(--ink); border-color: var(--ink); box-shadow: var(--shadow-1); translate: 0 -3px; }
.tool:first-child { grid-column: span 2; grid-row: span 2; padding: 26px; }
.tool-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; font: 600 .7rem/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.tool-tag { font: 600 .68rem/1 var(--sans); letter-spacing: .06em; text-transform: uppercase; padding: 5px 8px; border-radius: 99px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.tool.is-live .tool-tag, .tool-tag.big.live { border-color: var(--accent); color: var(--accent); }
.tool-tag.big { padding: 9px 12px; align-self: center; }
.tool-body { display: block; margin-top: 22px; }
.tool-name { display: block; font: 600 1.35rem/1.15 var(--serif); transition: transform .5s var(--ease); }
.tool:first-child .tool-name { font-size: 2.2rem; }
.tool-line { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; overflow: hidden; margin-top: 8px; font-size: .9rem; line-height: 1.45; color: var(--muted); opacity: 0; transform: translateY(10px); filter: blur(4px); transition: opacity .4s var(--ease), transform .5s var(--ease), filter .4s; }
.tool:first-child .tool-line { font-size: 1.05rem; max-width: 26em; }
.tool:hover .tool-line, .tool:focus-visible .tool-line, .tool:first-child .tool-line { opacity: 1; transform: none; filter: none; }
.tool .ta { position: absolute; right: 12px; bottom: 12px; transform: scale(.66); transform-origin: 100% 100%; opacity: .55; transition: opacity .4s; }
.tool:hover .ta, .tool:focus-visible .ta { opacity: 1; }
.tool:first-child .ta { position: relative; right: auto; bottom: auto; margin-top: 34px; transform: scale(1.9); transform-origin: 0 0; opacity: 1; }

/* 小演示动画：静止时就是一张完整的小图；悬停 / 进屏（.play）才动 */
.ta { position: relative; display: block; width: 120px; height: 72px; }
.ta i, .ta b { position: absolute; display: block; }
.ta i { border-radius: 4px; }
.ta b { border-radius: 2px; background: #d9d2c0; height: 4px; }
.a-form, .a-paper, .a-sheet, .a-slide, .a-col, .a-dd, .a-cal, .a-qr { background: #fffdf8; border: 1px solid #cfc6b0; }
.a-form { left: 0; top: 8px; width: 44px; height: 56px; } .a-form b { left: 7px; right: 7px; } .a-form b:nth-child(1) { top: 10px; } .a-form b:nth-child(2) { top: 22px; right: 14px; } .a-form b:nth-child(3) { top: 34px; }
.a-arrow { left: 50px; top: 35px; width: 16px; height: 2px; background: var(--ink); border-radius: 2px; }
.a-arrow::after { content: ""; position: absolute; right: -1px; top: -3px; width: 7px; height: 7px; border-top: 2px solid var(--ink); border-right: 2px solid var(--ink); transform: rotate(45deg); }
.a-page { left: 74px; top: 6px; width: 42px; height: 58px; background: #fffdf8; border: 1.5px solid var(--accent); box-shadow: 0 6px 12px -6px rgba(0,0,0,.35); }
.a-page::before { content: "PDF"; position: absolute; left: 0; right: 0; top: 0; background: var(--accent); color: #fff; font: 700 7px/11px var(--sans); text-align: center; }
.a-page b { left: 6px; right: 6px; } .a-page b:nth-child(1) { top: 20px; } .a-page b:nth-child(2) { top: 30px; right: 12px; }
.a-sheet { left: 32px; top: 14px; width: 58px; height: 42px; box-shadow: 0 4px 10px -6px rgba(0,0,0,.3); }
.a-sheet::before { content: ""; position: absolute; inset: 4px; border: 1px solid rgba(165,80,26,.45); }
.s1 { transform: rotate(-9deg) translate(-16px, 2px); } .s2 { transform: rotate(-2deg); } .s3 { transform: rotate(7deg) translate(16px, 2px); }
.a-seal { width: 10px !important; height: 10px !important; border-radius: 50% !important; background: var(--accent) !important; left: 24px; bottom: 5px; }
.a-paper { left: 18px; top: 4px; width: 84px; height: 62px; } .a-paper b { left: 10px; right: 10px; } .a-paper b:nth-child(1) { top: 10px; } .a-paper b:nth-child(2) { top: 20px; right: 30px; } .a-paper b:nth-child(3) { top: 30px; right: 20px; }
.a-sig { position: absolute; left: 22px; top: 26px; width: 78px; height: 30px; fill: none; stroke: var(--ink); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 0; }
.a-stamp { left: 66px; top: 30px; width: 30px; height: 30px; border-radius: 50% !important; border: 2px solid var(--accent); color: var(--accent); font: 700 16px/26px var(--sans); text-align: center; transform: rotate(-10deg); font-style: normal; }
.a-folder { left: 30px; top: 22px; width: 62px; height: 44px; background: #e6d9bd; }
.a-folder::before { content: ""; position: absolute; left: 0; top: -7px; width: 24px; height: 9px; background: #e6d9bd; border-radius: 4px 4px 0 0; }
.a-folder-f { left: 30px; top: 34px; width: 62px; height: 32px; background: #efe3c8; border-top: 1px solid #d8c69f; }
.a-file { left: 46px; top: 12px; width: 30px; height: 36px; background: #fffdf8; border: 1.5px solid var(--accent); }
.a-qr { left: 30px; top: 6px; width: 60px; height: 60px; background-image: radial-gradient(#16150f 32%, transparent 34%); background-size: 8px 8px; background-position: 2px 2px; }
.a-qr b { width: 16px; height: 16px; background: #fffdf8; border: 4px solid #16150f; border-radius: 2px; } .a-qr b:nth-child(1) { left: 3px; top: 3px; } .a-qr b:nth-child(2) { right: 3px; top: 3px; } .a-qr b:nth-child(3) { left: 3px; bottom: 3px; } .a-qr b:nth-child(4) { display: none; }
.a-scan { left: 24px; top: 6px; width: 72px; height: 2px; background: var(--accent); box-shadow: 0 0 8px rgba(165,80,26,.6); opacity: 0; }
.a-col { left: 4px; top: 6px; width: 46px; height: 60px; } .a-col b { left: 6px; right: 6px; } .a-col b:nth-child(1) { top: 10px; } .a-col b:nth-child(2) { top: 24px; } .a-col b:nth-child(3) { top: 38px; background: var(--accent); }
.a-dd { left: 66px; top: 6px; width: 50px; height: 60px; border-radius: 6px; } .a-dd b { left: 7px; right: 7px; } .a-dd b:nth-child(1) { top: 10px; } .a-dd b:nth-child(2) { top: 24px; } .a-dd b:nth-child(3) { top: 38px; background: var(--accent); }
.a-cal { left: 14px; top: 4px; width: 92px; height: 64px; display: grid !important; grid-template-columns: repeat(4, 1fr); gap: 4px; padding: 6px; }
.a-cal b { position: static !important; height: auto !important; background: #eee7d6; }
.a-cal b:nth-child(2), .a-cal b:nth-child(7), .a-cal b:nth-child(12) { background: var(--accent); }
.a-bars { left: 14px; top: 6px; width: 92px; height: 60px; border-bottom: 1.5px solid var(--ink); border-radius: 0 !important; }
.a-bars b { bottom: 0; width: 12px; height: auto; transform-origin: 50% 100%; background: #cfc6b0; }
.a-bars b:nth-child(1) { left: 6px; top: 28px; } .a-bars b:nth-child(2) { left: 24px; top: 12px; } .a-bars b:nth-child(3) { left: 42px; top: 34px; } .a-bars b:nth-child(4) { left: 60px; top: 18px; background: var(--accent); } .a-bars b:nth-child(5) { left: 78px; top: 24px; }
.a-row { left: 10px; width: 100px; height: 14px; background: #fffdf8; border: 1px solid #cfc6b0; }
.a-row::before { content: ""; position: absolute; left: 6px; top: 4px; width: 50px; height: 4px; border-radius: 2px; background: #cfc6b0; }
.r1 { top: 10px; } .r2 { top: 30px; border-color: var(--accent); } .r3 { top: 50px; }
.a-link { left: 6px; top: 8px; width: 108px; height: 18px; border-radius: 99px !important; background: #fffdf8; border: 1px solid #cfc6b0; }
.a-link b { left: 10px; top: 6px; width: 56px; background: var(--accent); }
.a-field { left: 6px; width: 108px; height: 14px; border-bottom: 1.5px solid #cfc6b0; border-radius: 0 !important; }
.a-field::before { content: ""; position: absolute; left: 0; bottom: 3px; width: 64px; height: 5px; border-radius: 2px; background: var(--ink); transform-origin: 0 50%; }
.f1 { top: 34px; } .f2 { top: 52px; } .f2::before { width: 44px; }
.a-slide { left: 8px; top: 6px; width: 104px; height: 60px; }
.a-ph { width: 28px; height: 22px; background: linear-gradient(160deg, #e8c9a4, #b9875a); border: 2px solid #fffdf8; box-shadow: 0 2px 6px rgba(0,0,0,.25); }
.p1 { left: 16px; top: 22px; } .p2 { left: 46px; top: 22px; } .p3 { left: 76px; top: 22px; }
.a-line { left: 6px; top: 16px; width: 40px; height: 4px; background: #d9d2c0; border-radius: 2px; } .a-line.l2 { left: 6px; top: 50px; width: 100px; }
.a-word { left: 50px; top: 9px; width: 64px; height: 18px; overflow: hidden; border-radius: 3px; background: var(--accent-soft); }
.a-word b { position: relative !important; display: block; height: 18px !important; background: none !important; font: 600 11px/18px var(--mono); color: var(--accent); text-align: center; }
.a-word b:first-child { color: var(--muted); text-decoration: line-through; }
.a-word b { transform: translateY(-100%); }

/* 动画只在悬停、聚焦、进屏（.play）时挂上；平时显示的是完整静态图 */
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-pdf .a-page, .ta-pdf.play .a-page { animation: ta-page 2.6s var(--ease) infinite; }
@keyframes ta-page { 0%, 12% { transform: translateX(-34px) scale(.5); opacity: 0; } 45%, 88% { transform: none; opacity: 1; } 100% { transform: translateX(10px); opacity: 0; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-batch .s1, .ta-batch.play .s1 { animation: ta-s1 2.4s var(--ease) infinite; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-batch .s3, .ta-batch.play .s3 { animation: ta-s3 2.4s var(--ease) infinite; }
@keyframes ta-s1 { 0%, 10% { transform: rotate(-2deg); } 45%, 85% { transform: rotate(-9deg) translate(-16px, 2px); } 100% { transform: rotate(-2deg); } }
@keyframes ta-s3 { 0%, 10% { transform: rotate(-2deg); } 45%, 85% { transform: rotate(7deg) translate(16px, 2px); } 100% { transform: rotate(-2deg); } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-sign .a-sig path, .ta-sign.play .a-sig path { animation: ta-draw 2.6s ease-out infinite; }
@keyframes ta-draw { 0%, 8% { stroke-dashoffset: 1; } 70%, 100% { stroke-dashoffset: 0; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-approve .a-stamp, .ta-approve.play .a-stamp { animation: ta-stamp 2.4s var(--ease) infinite; }
@keyframes ta-stamp { 0%, 25% { transform: rotate(-10deg) scale(1.8); opacity: 0; } 45%, 90% { transform: rotate(-10deg) scale(1); opacity: 1; } 100% { opacity: 0; transform: rotate(-10deg); } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-drop .a-file, .ta-drop.play .a-file { animation: ta-fall 2.2s var(--ease) infinite; }
@keyframes ta-fall { 0% { transform: translateY(-34px); opacity: 0; } 30% { opacity: 1; } 60%, 100% { transform: translateY(14px); opacity: 1; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-ticket .a-scan, .ta-ticket.play .a-scan { animation: ta-scan 2s ease-in-out infinite; }
@keyframes ta-scan { 0% { transform: translateY(0); opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { transform: translateY(60px); opacity: 0; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-choices .a-dd b, .ta-choices.play .a-dd b { animation: ta-row 2.4s var(--ease) infinite; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-choices .a-dd b:nth-child(2), .ta-choices.play .a-dd b:nth-child(2) { animation-delay: .12s; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-choices .a-dd b:nth-child(3), .ta-choices.play .a-dd b:nth-child(3) { animation-delay: .27s; }
@keyframes ta-row { 0%, 15% { transform: translateX(-26px); opacity: 0; } 50%, 100% { transform: none; opacity: 1; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-calendar .a-cal b:nth-child(2), .ta-calendar.play .a-cal b:nth-child(2), :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-calendar .a-cal b:nth-child(7), .ta-calendar.play .a-cal b:nth-child(7), :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-calendar .a-cal b:nth-child(12), .ta-calendar.play .a-cal b:nth-child(12) { animation: ta-pop 2.4s var(--ease) infinite; transform-origin: 0 50%; }
.ta-calendar .a-cal b:nth-child(7) { animation-delay: .15s; } .ta-calendar .a-cal b:nth-child(12) { animation-delay: .32s; }
@keyframes ta-pop { 0%, 12% { transform: scaleX(0); } 50%, 100% { transform: none; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-bars .a-bars b, .ta-bars.play .a-bars b { animation: ta-grow 2.4s var(--ease) infinite; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-bars .a-bars b:nth-child(2), .ta-bars.play .a-bars b:nth-child(2) { animation-delay: .08s; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-bars .a-bars b:nth-child(3), .ta-bars.play .a-bars b:nth-child(3) { animation-delay: .19s; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-bars .a-bars b:nth-child(4), .ta-bars.play .a-bars b:nth-child(4) { animation-delay: .27s; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-bars .a-bars b:nth-child(5), .ta-bars.play .a-bars b:nth-child(5) { animation-delay: .34s; }
@keyframes ta-grow { 0%, 10% { transform: scaleY(.08); } 55%, 100% { transform: none; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-dedupe .r2, .ta-dedupe.play .r2 { animation: ta-merge 2.4s var(--ease) infinite; }
@keyframes ta-merge { 0%, 20% { transform: none; opacity: 1; } 60%, 100% { transform: translateY(-20px); opacity: 0; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-prefill .a-field::before, .ta-prefill.play .a-field::before { animation: ta-fill 2.4s var(--ease) infinite; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-prefill .f2::before, .ta-prefill.play .f2::before { animation-delay: .25s; }
@keyframes ta-fill { 0%, 15% { transform: scaleX(0); } 55%, 100% { transform: none; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-photos .a-ph, .ta-photos.play .a-ph { animation: ta-fly 2.6s var(--ease) infinite; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-photos .p2, .ta-photos.play .p2 { animation-delay: .12s; } :is(.tool:hover, .tool:focus-visible, .tool.play) .ta-photos .p3, .ta-photos.play .p3 { animation-delay: .26s; }
@keyframes ta-fly { 0%, 10% { transform: translateY(40px) rotate(-12deg); opacity: 0; } 50%, 100% { transform: none; opacity: 1; } }
:is(.tool:hover, .tool:focus-visible, .tool.play) .ta-swap .a-word b, .ta-swap.play .a-word b { animation: ta-swap 2.4s var(--ease) infinite; }
@keyframes ta-swap { 0%, 30% { transform: none; } 55%, 100% { transform: translateY(-100%); } }

/* ---------- 三步流程：钉住 + 滚动换场（淡出、蒙色、缩小） ---------- */
.story-sec { padding-bottom: 0; }
.scenes { position: relative; }
.scene { padding: 40px 0; }
.scene-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.scene-art { position: relative; display: flex; align-items: center; justify-content: center; aspect-ratio: 4 / 3; border-radius: 22px; background: var(--card); border: 1px solid var(--line); overflow: hidden; }
.scene-art .mini { transform: scale(2.3); box-shadow: var(--shadow-1); }
.scene-tag { position: absolute; left: 18px; top: 16px; font: 600 .72rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.scene-copy .n { font: 600 .8rem/1 var(--mono); color: var(--accent); margin-bottom: 14px; }
.scene-copy h3 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.scene-copy p { color: var(--muted); font-size: 1.08rem; max-width: 26em; }
.scene-veil, .scene-prog { display: none; }
.scenes.live { height: 330vh; }
.scenes.live .scenes-pin { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.scenes.live .scene > .wrap { width: 100%; }
.scenes.live .scene { position: absolute; inset: 0; display: flex; align-items: center; padding: 0; opacity: 0; will-change: transform, opacity; }
.scenes.live .scene-veil { display: block; position: absolute; inset: 0; background: #2b2216; opacity: 0; pointer-events: none; z-index: 3; }
.scenes.live .scene-prog { display: block; position: absolute; left: 50%; bottom: 34px; width: 160px; margin-left: -80px; height: 2px; background: var(--line); z-index: 4; }
.scenes.live .scene-prog i { position: absolute; inset: 0; background: var(--accent); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); }

/* ---------- 样张一排：钉住横滚（往下滚 = 往右翻） ---------- */
.hs.live { padding: 0; }
.hs.live .hs-pin { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.hs.live .strip { display: flex; gap: 28px; width: max-content; overflow: visible; margin: 0; padding: 40px 0 30px; will-change: transform; }
.hs.live .strip .xcard { flex: 0 0 300px; }
.desk.tilt { transform-style: preserve-3d; }

/* ---------- 使用场景：图从印章形状的洞里放大揭开 ---------- */
.mreveal { margin: 30px 0 10px; }
.mreveal-pin { position: relative; height: min(64vh, 520px); border-radius: 22px; overflow: hidden; background: #e3d8bf; }
.mreveal-img { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 3%; transform: scale(var(--is, 1)); will-change: transform; }
.mreveal-img img { height: 74%; width: auto; box-shadow: 0 2px 4px rgba(22,21,15,.2), 0 26px 40px -18px rgba(22,21,15,.55); border-radius: 2px; background: #fff; }
.mreveal-img .mi0 { transform: rotate(-4deg) translateY(10px); } .mreveal-img .mi2 { transform: rotate(4deg) translateY(14px); }
.mreveal-cover { position: absolute; inset: -2px; display: flex; align-items: center; justify-content: center; pointer-events: none; }
.mask-hole { position: absolute; left: 50%; top: 50%; width: 2600px; height: 2600px; margin: -1300px 0 0 -1300px; max-width: none; fill: var(--paper); transform: scale(var(--ms, 1)); will-change: transform; }
.mreveal:not(.live) .mask-hole { display: none; }
.mreveal.live { height: 190vh; }
.mreveal.live .mreveal-pin { position: sticky; top: calc(50vh - min(32vh, 260px)); }

/* ---------- 卖点四格：图标描线 ---------- */
.why-ic { width: 30px; height: 30px; margin-bottom: 12px; fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.why-ic * { stroke-dasharray: 1; stroke-dashoffset: 0; }
html.js .why-i:not(.in) .why-ic * { stroke-dashoffset: 1; }
html.js .why-i.in .why-ic * { transition: stroke-dashoffset 1.3s var(--ease); transition-delay: calc(var(--d, 0ms) + 250ms); }
html.reveal-fallback .why-ic * { stroke-dashoffset: 0 !important; }

/* ---------- 对比表：行依次滑入，我们那一列一道光扫过 ---------- */
html.js [data-rows]:not(.in) tbody tr, html.js [data-rows]:not(.in) thead tr { opacity: 0; transform: translateX(-18px); }
[data-rows] tr { transition: opacity .6s var(--ease), transform .7s var(--ease); transition-delay: var(--rd, 0ms); }
html.reveal-fallback [data-rows] tr { opacity: 1 !important; transform: none !important; }
td.us, th.us { position: relative; overflow: hidden; }
td.us::after, th.us::after { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 60%; background: linear-gradient(100deg, rgba(255,250,240,0), rgba(255,250,240,.75), rgba(255,250,240,0)); transform: translateX(-120%); pointer-events: none; }
[data-rows].sweep td.us::after, [data-rows].sweep th.us::after { animation: colsweep 1.4s var(--ease) forwards; animation-delay: var(--rd, 0ms); }
@keyframes colsweep { to { transform: translateX(260%); } }

/* ---------- 价格：月付 / 年付切换 + 数字滚动 ---------- */
.bill { position: relative; display: inline-flex; margin-top: 26px; padding: 4px; border: 1px solid var(--line); border-radius: 99px; background: var(--card); }
.bill button { position: relative; z-index: 1; font: 600 .9rem/1 var(--sans); padding: 10px 18px; border: 0; background: none; color: var(--muted); cursor: pointer; border-radius: 99px; transition: color .3s; }
.bill button[aria-checked="true"] { color: var(--paper); }
.bill-knob { position: absolute; left: 0; top: 4px; bottom: 4px; width: 100px; border-radius: 99px; background: var(--ink); transform-origin: 0 50%; transform: translateX(var(--kx, 0)) scaleX(var(--ks, 0)); transition: transform .5s var(--ease); }
html:not(.js) .bill { display: none; }
.odo { font-variant-numeric: tabular-nums; display: inline-flex; height: 1em; line-height: 1; overflow: hidden; vertical-align: -.02em; }
.odo-col { display: inline-block; height: 1em; overflow: hidden; transition: width .5s var(--ease); }
.odo-col[data-v="10"] { width: 0; }
.odo-s { display: flex; flex-direction: column; transform: translateY(calc(var(--v, 0) * -1em)); transition: transform .8s var(--ease); }
.odo-s span { display: block; height: 1em; }

/* ---------- 常见问题：高度动画展开收起 ---------- */
details .faq-a { overflow: hidden; }
summary::after { transition: transform .4s var(--ease); }
details[open] summary::after { content: "+"; transform: rotate(45deg); }

/* ---------- 底部大号行动区：大字随滚动放大 ---------- */
.cta-band { background: transparent; color: var(--ink); padding: 110px 0 96px; overflow: hidden; border-top: 1px solid var(--line); }
.cta-band p { color: var(--muted); }
.cta-band .btn.on-dark { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.cta-big { font-size: clamp(2.4rem, 7.4vw, 6rem); line-height: 1; letter-spacing: -.035em; margin: 0 auto 26px; max-width: 13em; }
.cta-big span { display: inline-block; transform: scale(var(--cs, 1)); transform-origin: 50% 60%; will-change: transform; }
.cta-band h2:not(.cta-big) { font-size: clamp(2rem, 5.5vw, 4rem); }

/* ---------- 页脚：超大品牌字逐字浮现，链接下划线从左画出 ---------- */
.foot-big { margin: 56px 0 0; font: 600 clamp(4rem, 17vw, 15rem)/.86 var(--serif); letter-spacing: -.045em; color: var(--ink); overflow: hidden; white-space: nowrap; padding-bottom: .06em; }
.foot-big span { display: inline-block; }
html.js .foot-big:not(.in) span { transform: translateY(105%); opacity: 0; }
html.js .foot-big.in span { transition: transform 1.1s var(--ease), opacity .6s; transition-delay: calc(var(--i) * 55ms + (var(--i) * var(--i)) * 4ms); }
html.reveal-fallback .foot-big span { transform: none !important; opacity: 1 !important; }
.foot a { position: relative; width: fit-content; }
.foot a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 1px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: 100% 50%; transition: transform .45s var(--ease); }
.foot a:hover::after, .foot a:focus-visible::after { transform: scaleX(1); transform-origin: 0 50%; }
.foot .logo::after { display: none; }

/* ---------- 工具页 ---------- */
.tp-hero { padding: 56px 0 64px; }
.tp-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 48px; align-items: center; }
.tp-hero h1 { font-size: clamp(2.4rem, 5.6vw, 4rem); }
.tp-hero .eyebrow a { color: inherit; text-decoration: none; }
.tp-demo { display: flex; align-items: center; justify-content: center; aspect-ratio: 4 / 3; border-radius: 22px; background: var(--card); border: 1px solid var(--line); }
.tp-demo .ta { transform: scale(2.6); }
.tp-pains { list-style: none; padding: 0; margin: 26px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.tp-pains li { padding-top: 14px; border-top: 2px solid var(--ink); color: var(--muted); }
.tp-callout { margin-top: 26px; background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--accent); padding: 14px 18px; border-radius: 8px; max-width: 46em; }
.tp-steps { list-style: none; padding: 0; margin: 26px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: s; }
.tp-steps li { padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.tp-steps .n { font: 600 .8rem/1 var(--mono); color: var(--accent); }
.tp-steps p { margin: 12px 0 0; font-size: 1.05rem; }
th.us { font-weight: 600; }

/* ---------- 手机：降级 ---------- */
@media (max-width: 960px) { .twall { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 768px) {
  .twall { grid-template-columns: 1fr; }
  .tool:first-child { grid-column: auto; grid-row: auto; }
  .tool { min-height: 0; padding-bottom: 92px; }
  .tool-line { opacity: 1; transform: none; filter: none; }
  .tool .ta { right: auto; left: 14px; bottom: 14px; transform: scale(.9); transform-origin: 0 100%; opacity: 1; }
  .tool:first-child { padding-bottom: 26px; } .tool:first-child .ta { margin-top: 22px; transform: scale(1.4); margin-bottom: 30px; left: 0; bottom: auto; }
  .scene-in { grid-template-columns: 1fr; gap: 22px; }
  .scene-art { aspect-ratio: 16 / 10; } .scene-art .mini { transform: scale(1.6); }
  .scenes.live { height: 300vh; }
  .scenes.live .scenes-pin { height: 100svh; }
  .scene-copy h3 { font-size: 1.6rem; }
  .mreveal-pin { height: 46vh; }
  .tp-grid, .tp-pains, .tp-steps { grid-template-columns: 1fr; }
  .tp-demo .ta { transform: scale(1.8); }
  .tp-hero { padding: 30px 0 40px; }
  .cta-band { padding: 72px 0 64px; }
}
html.lite .hero-bg::before { animation-duration: 30s; }

/* ---------- 减少动画：全部静止在最终状态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .split .c { animation: none; transform: none; }
  .hero-bg::before { animation: none; }
  .ta * { animation: none !important; }
  .site-header, .site-header.hide { transform: none; transition: none; }
  .tool, .tool-name, .tool-line { transition: none; }
  html.js [data-rows]:not(.in) tbody tr, html.js [data-rows]:not(.in) thead tr { opacity: 1; transform: none; }
  html.js .why-i:not(.in) .why-ic * { stroke-dashoffset: 0; }
  html.js .foot-big:not(.in) span { transform: none; opacity: 1; }
  .odo-s, .odo-col, .bill-knob, .foot a::after, .nav-ink { transition: none; }
  td.us::after, th.us::after { display: none; }
  .pt, .cur { display: none; }
}

.mini-doc .chip .v { white-space: nowrap; }