/* ==========================================================================
   知一 · 个人品牌站 · 设计系统
   色板：奶油底 #FAF6EE ／ 陶土橙 #E07856 ／ 鼠尾草绿 #87A878
   组件：module-head / anchor-chips / split-contrast / stat-counter /
        stack-chain / deliver-list / grid-six / credential-row /
        quiz-card / faq-long
   ========================================================================== */

/* ---------- 1. 令牌 ---------- */
:root {
  --cream: #FAF6EE;
  --cream-2: #F2EADB;
  --cream-3: #EDE3D2;
  --ink: #241F1B;
  --ink-2: #5C5248;
  --ink-3: #8A7F73;
  --clay: #E07856;
  --clay-d: #C25E3C;
  --clay-l: #F2A98C;
  --sage: #87A878;
  --sage-d: #6A8B5B;
  --line: rgba(36, 31, 27, 0.10);
  --line-2: rgba(36, 31, 27, 0.16);
  --glass: rgba(255, 253, 249, 0.72);
  --glass-2: rgba(255, 253, 249, 0.55);
  --shadow-s: 0 1px 2px rgba(36, 31, 27, .05), 0 4px 14px rgba(36, 31, 27, .05);
  --shadow-m: 0 2px 6px rgba(36, 31, 27, .06), 0 18px 40px rgba(36, 31, 27, .08);
  --shadow-l: 0 30px 70px rgba(36, 31, 27, .12);
  --glow-clay: rgba(224, 120, 86, .30);
  --glow-sage: rgba(135, 168, 120, .30);

  --font-display: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;

  --r-s: 8px;
  --r-m: 14px;
  --r-l: 22px;
  --r-pill: 999px;

  --wrap: 1160px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-soft: cubic-bezier(.4, 0, .2, 1);
}

html[data-theme="dark"] {
  --cream: #14110F;
  --cream-2: #1C1815;
  --cream-3: #262019;
  --ink: #F3EEE5;
  --ink-2: #B8AC9E;
  --ink-3: #8B8175;
  --clay: #F0906E;
  --clay-d: #D9754F;
  --clay-l: #7E4630;
  --sage: #9DBE8C;
  --sage-d: #B4D2A4;
  --line: rgba(243, 238, 229, 0.12);
  --line-2: rgba(243, 238, 229, 0.20);
  --glass: rgba(28, 24, 21, 0.72);
  --glass-2: rgba(28, 24, 21, 0.5);
  --shadow-s: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-m: 0 2px 6px rgba(0, 0, 0, .4), 0 18px 40px rgba(0, 0, 0, .45);
  --shadow-l: 0 30px 70px rgba(0, 0, 0, .55);
  --glow-clay: rgba(240, 144, 110, .28);
  --glow-sage: rgba(157, 190, 140, .26);
}

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .012em;
  overflow-x: hidden;
  transition: background-color .5s var(--ease-soft), color .5s var(--ease-soft);
}

/* 背景氛围：两团柔光 + 细网格 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(760px 520px at 12% -6%, var(--glow-clay), transparent 62%),
    radial-gradient(680px 500px at 92% 8%, var(--glow-sage), transparent 60%),
    radial-gradient(900px 700px at 50% 106%, rgba(224, 120, 86, .08), transparent 65%);
  opacity: .85;
}

/* 极细网格纹理 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}

main, header, footer { position: relative; z-index: 1; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: .005em;
  margin: 0;
}

p { margin: 0 0 14px; }
p:last-child { margin-bottom: 0; }

::selection { background: rgba(224, 120, 86, .26); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 26px; }
.wrap--narrow { max-width: 860px; }

.section { padding: 92px 0; position: relative; }
.section--tight { padding: 62px 0; }
.section--alt { background: linear-gradient(180deg, transparent, var(--cream-2) 16%, var(--cream-2) 84%, transparent); }

.eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--clay-d);
  text-transform: uppercase;
}

.lead { font-size: 17.5px; color: var(--ink-2); max-width: 62ch; }
.muted { color: var(--ink-2); }
.tiny { font-size: 13px; color: var(--ink-3); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

:focus-visible { outline: 2px solid var(--clay); outline-offset: 3px; border-radius: 4px; }

/* ---------- 3. 顶部：进度条 / 光斑 / 页头 ---------- */
.progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 120;
  background: transparent; pointer-events: none;
}
.progress span {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--clay), var(--sage));
  box-shadow: 0 0 14px var(--glow-clay);
  transition: width .12s linear;
}

.spotlight {
  position: fixed; z-index: 0; pointer-events: none;
  width: 620px; height: 620px; margin: -310px 0 0 -310px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 120, 86, .13), transparent 62%);
  opacity: 0; transition: opacity .5s var(--ease-soft);
  will-change: transform;
}
html[data-theme="dark"] .spotlight {
  background: radial-gradient(circle, rgba(240, 144, 110, .16), transparent 62%);
}

.site-header {
  position: sticky; top: 0; z-index: 110;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color .35s var(--ease-soft), border-color .35s var(--ease-soft), box-shadow .35s var(--ease-soft);
}
.site-header.is-stuck,
.site-header.is-menu-open {
  background: var(--glass);
  border-bottom-color: var(--line);
  box-shadow: 0 6px 26px rgba(36, 31, 27, .05);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 22px; min-height: 70px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px;
  border-radius: 9px; overflow: hidden;
  box-shadow: 0 6px 18px var(--glow-clay);
  transition: transform .5s var(--ease);
}
.brand-mark img { width: 100%; height: 100%; display: block; }
.brand:hover .brand-mark { transform: rotate(-8deg) scale(1.06); }
.brand-name {
  font-family: var(--font-display); font-size: 20px; font-weight: 600; letter-spacing: .1em;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative; padding: 9px 14px; border-radius: var(--r-pill);
  font-size: 14.5px; color: var(--ink-2); letter-spacing: .06em;
  transition: color .3s var(--ease-soft), background-color .3s var(--ease-soft);
}
.nav a::after {
  content: ""; position: absolute; left: 50%; bottom: 3px; width: 0; height: 2px;
  background: var(--clay); border-radius: 2px;
  transform: translateX(-50%);
  transition: width .35s var(--ease);
}
.nav a:hover { color: var(--ink); background: rgba(224, 120, 86, .09); }
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 20px; }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 6px; }

.icon-btn {
  display: grid; place-items: center; width: 38px; height: 38px;
  border: 0; border-radius: 50%; background: transparent; cursor: pointer;
  color: var(--ink-3);
  transition: color .3s var(--ease-soft), background-color .3s var(--ease-soft), transform .3s var(--ease);
}
.icon-btn:hover { color: var(--ink); background: rgba(36, 31, 27, .06); transform: translateY(-1px); }
html[data-theme="dark"] .icon-btn:hover { background: rgba(243, 238, 229, .08); }
.menu-btn { display: none; }

/* 移动端菜单的遮罩（由 JS 生成，桌面端不启用） */
.nav-backdrop { display: none; }

@keyframes menuIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 4. 按钮 ---------- */
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 26px; border: 1px solid transparent; border-radius: var(--r-pill);
  font-size: 15px; font-weight: 600; letter-spacing: .05em; cursor: pointer;
  background: var(--cream-2); color: var(--ink);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease),
              background-color .3s var(--ease-soft), color .3s var(--ease-soft),
              border-color .3s var(--ease-soft);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--clay), var(--clay-d));
  color: #fff; box-shadow: 0 10px 26px var(--glow-clay);
}
.btn-primary:hover { box-shadow: 0 16px 38px var(--glow-clay); }
.btn-ghost { background: transparent; border-color: var(--line-2); color: var(--ink); }
.btn-ghost:hover { background: rgba(135, 168, 120, .12); border-color: var(--sage); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 17px 34px; font-size: 16px; }
.btn::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(200px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, .28), transparent 62%);
  opacity: 0; transition: opacity .4s var(--ease-soft); pointer-events: none;
}
.btn:hover::after { opacity: 1; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-weight: 600; font-size: 15px; color: var(--clay-d);
  border-bottom: 1px solid transparent; transition: gap .35s var(--ease), border-color .3s;
}
.link-arrow:hover { gap: 12px; border-bottom-color: var(--clay); }
html[data-theme="dark"] .link-arrow { color: var(--clay); }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

/* ---------- 5. 通用组件 1：模块头 ---------- */
.module-head { margin-bottom: 42px; max-width: 780px; }
.module-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.module-head__top { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.module-head--center .module-head__top { justify-content: center; }

.mod-num {
  position: relative; flex: none;
  display: grid; place-items: center;
  width: 46px; height: 46px; border-radius: 14px;
  font-family: var(--font-mono); font-size: 14px; font-weight: 700;
  color: var(--clay-d); background: var(--cream-2);
  border: 1px solid var(--line);
}
.mod-num::after {
  content: ""; position: absolute; inset: -1px; border-radius: 15px;
  border: 1px solid var(--clay); opacity: 0;
  transform: scale(.86);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.is-in .mod-num::after, .module-head:hover .mod-num::after { opacity: .5; transform: scale(1); }
html[data-theme="dark"] .mod-num { color: var(--clay); }

.module-head h2 { font-size: clamp(26px, 3.4vw, 38px); }
.module-head .lead { margin-top: 14px; }
.module-head--sm h2 { font-size: clamp(22px, 2.5vw, 28px); }

/* ---------- 6. 通用组件 2：锚点条 ---------- */
.anchor-chips {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding: 10px; margin-bottom: 46px;
  border: 1px solid var(--line); border-radius: var(--r-pill);
  background: var(--glass-2);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  width: fit-content; max-width: 100%;
}
.anchor-chips a {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 9px 18px; border-radius: var(--r-pill);
  font-size: 14.5px; color: var(--ink-2);
  transition: background-color .35s var(--ease-soft), color .3s var(--ease-soft), transform .35s var(--ease);
}
.anchor-chips a .n {
  font-family: var(--font-mono); font-size: 12px; opacity: .7;
}
.anchor-chips a:hover { color: var(--ink); background: rgba(135, 168, 120, .14); transform: translateY(-1px); }
.anchor-chips a.is-active {
  background: linear-gradient(135deg, var(--clay), var(--clay-d));
  color: #fff; box-shadow: 0 8px 20px var(--glow-clay);
}
.anchor-chips a.is-active .n { opacity: .85; }

/* ---------- 7. 通用组件 3：两栏对比 ---------- */
.split-contrast {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.sc-col {
  position: relative; overflow: hidden;
  padding: 32px 30px; border-radius: var(--r-l);
  border: 1px solid var(--line); background: var(--glass);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.sc-col::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--ink-3); opacity: .5;
}
.sc-col--right::before { background: linear-gradient(90deg, var(--clay), var(--sage)); opacity: 1; }
.sc-col h3 {
  font-size: 19px; margin-bottom: 4px; display: flex; align-items: center; gap: 10px;
}
.sc-col__tag {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .1em;
  padding: 3px 9px; border-radius: var(--r-pill);
  background: rgba(36, 31, 27, .07); color: var(--ink-2);
}
.sc-col--right .sc-col__tag { background: rgba(224, 120, 86, .14); color: var(--clay-d); }
html[data-theme="dark"] .sc-col--right .sc-col__tag { color: var(--clay); }
.sc-col > .tiny { margin: 8px 0 18px; }

.sc-list { list-style: none; margin: 0; padding: 0; }
.sc-list li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 13px 0; border-top: 1px dashed var(--line-2);
  font-size: 15.5px; color: var(--ink-2);
}
.sc-list li:first-child { border-top: 0; }
.sc-list .mk {
  flex: none; width: 20px; height: 20px; margin-top: 4px; border-radius: 50%;
  display: grid; place-items: center; font-size: 11px;
  background: rgba(36, 31, 27, .07); color: var(--ink-3);
}
.sc-col--right .sc-list li { color: var(--ink); }
.sc-col--right .sc-list .mk { background: rgba(135, 168, 120, .22); color: var(--sage-d); }
.sc-col--lift { transition: transform .6s var(--ease), box-shadow .6s var(--ease); }
.sc-col--lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); }

/* ---------- 8. 通用组件 4：计数条 ---------- */
.stat-counter {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  border: 1px solid var(--line); border-radius: var(--r-l); overflow: hidden;
  background: var(--line);
}
.stat-counter--3 { grid-template-columns: repeat(3, 1fr); }
.stat-counter--2 { grid-template-columns: repeat(2, 1fr); }
.stat {
  padding: 28px 22px; background: var(--cream);
  transition: background-color .45s var(--ease-soft);
}
.stat:hover { background: var(--cream-2); }
html[data-theme="dark"] .stat { background: var(--cream-2); }
html[data-theme="dark"] .stat:hover { background: var(--cream-3); }
.stat__v {
  font-family: var(--font-display); font-size: clamp(30px, 3.6vw, 42px); font-weight: 600;
  line-height: 1.1; color: var(--ink);
  display: flex; align-items: baseline; gap: 3px;
}
.stat__v .unit { font-size: .5em; font-family: var(--font-body); font-weight: 500; color: var(--ink-2); }
.stat__k { font-size: 13.5px; color: var(--ink-2); margin-top: 8px; letter-spacing: .04em; }
.stat__note { font-size: 12px; color: var(--ink-3); margin-top: 3px; }

/* ---------- 9. 通用组件 5：链条条 ---------- */
.stack-chain {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0;
  padding: 22px 24px; border-radius: var(--r-l);
  border: 1px dashed var(--line-2); background: var(--glass-2);
}
.stack-chain__item {
  position: relative; display: inline-flex; align-items: center; gap: 9px;
  padding: 9px 16px; border-radius: var(--r-pill);
  background: var(--cream); border: 1px solid var(--line);
  font-size: 14.5px; font-weight: 600; white-space: nowrap;
  transition: transform .5s var(--ease), border-color .4s, box-shadow .5s;
}
html[data-theme="dark"] .stack-chain__item { background: var(--cream-3); }
.stack-chain__item .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--clay);
  box-shadow: 0 0 0 0 var(--glow-clay);
  animation: pulse 2.6s var(--ease-soft) infinite;
}
.stack-chain__item:nth-child(4n+1) .dot { animation-delay: 0s; }
.stack-chain__item:nth-child(4n+3) .dot { animation-delay: .5s; }
.stack-chain__item:nth-child(4n+5) .dot { animation-delay: 1s; }
.stack-chain__item:hover { transform: translateY(-3px); border-color: var(--clay-l); box-shadow: var(--shadow-s); }
.stack-chain__sep {
  color: var(--clay); font-size: 13px; padding: 0 10px; opacity: .8;
  font-family: var(--font-mono);
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--glow-clay); }
  70% { box-shadow: 0 0 0 9px rgba(224, 120, 86, 0); }
  100% { box-shadow: 0 0 0 0 rgba(224, 120, 86, 0); }
}

/* ---------- 10. 通用组件 6：编号交付清单 ---------- */
.deliver-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.deliver-list li {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 18px 20px; border-radius: var(--r-m);
  border: 1px solid transparent;
  transition: background-color .4s var(--ease-soft), border-color .4s, transform .5s var(--ease);
}
.deliver-list li:hover { background: var(--cream-2); border-color: var(--line); transform: translateX(4px); }
html[data-theme="dark"] .deliver-list li:hover { background: var(--cream-3); }
.deliver-list .idx {
  flex: none; font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  color: var(--clay-d); padding-top: 3px; min-width: 26px;
}
html[data-theme="dark"] .deliver-list .idx { color: var(--clay); }
.deliver-list b { display: block; font-size: 16px; margin-bottom: 3px; }
.deliver-list span.d { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 11. 通用组件 7：六格网格 ---------- */
.grid-six { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-four { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.gcell {
  position: relative; overflow: hidden;
  padding: 26px 24px; border-radius: var(--r-l);
  border: 1px solid var(--line); background: var(--glass);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: transform .55s var(--ease), box-shadow .55s var(--ease), border-color .4s;
  transform-style: preserve-3d;
}
.gcell:hover { box-shadow: var(--shadow-m); border-color: var(--clay-l); }
.gcell__glow {
  position: absolute; inset: 0; opacity: 0; pointer-events: none;
  background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 50%), rgba(224, 120, 86, .16), transparent 65%);
  transition: opacity .45s var(--ease-soft);
}
.gcell:hover .gcell__glow { opacity: 1; }
.gcell__n {
  font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: .12em;
  color: var(--clay-d); margin-bottom: 12px; display: block;
}
html[data-theme="dark"] .gcell__n { color: var(--clay); }
.gcell h3 { font-size: 18px; margin-bottom: 8px; }
.gcell p { font-size: 14.5px; color: var(--ink-2); margin: 0 0 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tags span {
  font-size: 12px; padding: 4px 10px; border-radius: var(--r-pill);
  background: rgba(135, 168, 120, .16); color: var(--sage-d);
  letter-spacing: .04em;
}
html[data-theme="dark"] .tags span { background: rgba(157, 190, 140, .14); color: var(--sage); }

/* ---------- 12. 通用组件 8：资质徽标行 ---------- */
.credential-row {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding: 18px 20px; border-radius: var(--r-l);
  border: 1px solid var(--line); background: var(--glass-2);
}
.credential {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 9px 16px; border-radius: var(--r-pill);
  background: var(--cream); border: 1px solid var(--line);
  font-size: 13.5px; color: var(--ink-2); letter-spacing: .03em;
  transition: transform .45s var(--ease), border-color .4s, color .3s;
}
html[data-theme="dark"] .credential { background: var(--cream-3); }
.credential:hover { transform: translateY(-2px); border-color: var(--sage); color: var(--ink); }
.credential svg { color: var(--sage-d); flex: none; }

/* ---------- 13. 通用组件 9：自测卡 ---------- */
.quiz-shell {
  position: relative; overflow: hidden;
  border-radius: var(--r-l); border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-m);
}
.quiz-top {
  height: 4px; background: var(--cream-3);
}
.quiz-top span {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--clay), var(--sage));
  transition: width .6s var(--ease);
}
.quiz-body { padding: 40px 38px 34px; }
.quiz-step { display: none; }
.quiz-step.is-active { display: block; animation: stepIn .55s var(--ease) both; }
@keyframes stepIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.quiz-q__idx {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .16em;
  color: var(--clay-d); display: block; margin-bottom: 12px;
}
html[data-theme="dark"] .quiz-q__idx { color: var(--clay); }
.quiz-q h3 { font-size: clamp(20px, 2.6vw, 26px); margin-bottom: 24px; }
.quiz-opts { display: grid; gap: 10px; }
.quiz-opt {
  display: flex; align-items: center; gap: 14px; text-align: left;
  padding: 16px 20px; border-radius: var(--r-m); cursor: pointer;
  border: 1px solid var(--line-2); background: var(--cream);
  font-size: 16px; color: var(--ink);
  transition: transform .4s var(--ease), border-color .3s, background-color .3s, box-shadow .4s;
}
html[data-theme="dark"] .quiz-opt { background: var(--cream-3); }
.quiz-opt:hover { transform: translateX(5px); border-color: var(--clay); box-shadow: var(--shadow-s); }
.quiz-opt .radio {
  flex: none; width: 20px; height: 20px; border-radius: 50%;
  border: 1.5px solid var(--line-2); position: relative;
  transition: border-color .3s;
}
.quiz-opt:hover .radio { border-color: var(--clay); }
.quiz-opt.is-picked { border-color: var(--clay); background: rgba(224, 120, 86, .08); }
.quiz-opt.is-picked .radio { border-color: var(--clay); }
.quiz-opt.is-picked .radio::after {
  content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--clay);
}
.quiz-back {
  margin-top: 20px; background: none; border: 0; cursor: pointer;
  color: var(--ink-3); font-size: 13.5px; padding: 4px 0;
  transition: color .3s;
}
.quiz-back:hover { color: var(--ink); }
.quiz-result { display: none; padding: 40px 38px 36px; }
.quiz-result.is-active { display: block; animation: stepIn .6s var(--ease) both; }
.quiz-result .badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 15px; border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--clay), var(--clay-d)); color: #fff;
  font-size: 13px; font-weight: 700; letter-spacing: .08em; margin-bottom: 18px;
}
.quiz-result h3 { font-size: clamp(23px, 3vw, 31px); margin-bottom: 14px; }
.quiz-result .qz-pts { list-style: none; margin: 20px 0 22px; padding: 0; display: grid; gap: 12px; }
.quiz-result .qz-pts li {
  display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; color: var(--ink-2);
  padding-left: 2px;
}
.quiz-result .qz-pts .mk {
  flex: none; width: 21px; height: 21px; margin-top: 5px; border-radius: 50%;
  background: rgba(135, 168, 120, .2); color: var(--sage-d);
  display: grid; place-items: center; font-size: 11px;
}
.quiz-action {
  padding: 18px 20px; border-radius: var(--r-m); margin-bottom: 24px;
  background: var(--cream-2); border-left: 3px solid var(--clay);
}
.quiz-action b { display: block; font-size: 13px; letter-spacing: .1em; color: var(--clay-d); margin-bottom: 6px; }
html[data-theme="dark"] .quiz-action b { color: var(--clay); }
.quiz-reset {
  background: none; border: 0; cursor: pointer; color: var(--ink-3);
  font-size: 13.5px; text-decoration: underline; text-underline-offset: 3px;
  transition: color .3s;
}
.quiz-reset:hover { color: var(--ink); }

/* ---------- 14. 通用组件 10：长答案手风琴 ---------- */
.faq-long { display: grid; gap: 10px; }
.faq-long details {
  border: 1px solid var(--line); border-radius: var(--r-m);
  background: var(--glass-2); overflow: hidden;
  transition: border-color .4s, box-shadow .4s, background-color .4s;
}
.faq-long details:hover { border-color: var(--line-2); }
.faq-long details[open] {
  border-color: var(--clay-l); background: var(--glass); box-shadow: var(--shadow-s);
}
.faq-long summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px 22px; font-size: 16.5px; font-weight: 600;
}
.faq-long summary::-webkit-details-marker { display: none; }
.faq-long summary .q {
  flex: none; font-family: var(--font-mono); font-size: 12.5px; color: var(--clay-d);
  padding-top: 5px; min-width: 30px; letter-spacing: .06em;
}
html[data-theme="dark"] .faq-long summary .q { color: var(--clay); }
.faq-long summary .sign {
  flex: none; margin-left: auto; width: 22px; height: 22px; position: relative; margin-top: 3px;
}
.faq-long summary .sign::before, .faq-long summary .sign::after {
  content: ""; position: absolute; left: 5px; right: 5px; top: 50%; height: 1.5px;
  background: var(--ink-3); border-radius: 2px;
  transition: transform .4s var(--ease), background-color .3s;
}
.faq-long summary .sign::after { transform: rotate(90deg); }
.faq-long details[open] summary .sign::after { transform: rotate(0deg); }
.faq-long details[open] summary .sign::before,
.faq-long details[open] summary .sign::after { background: var(--clay); }
.faq-long .a {
  padding: 0 22px 24px 68px; font-size: 15.5px; color: var(--ink-2);
  animation: stepIn .5s var(--ease) both;
}
.faq-long .a p { margin-bottom: 12px; }
.faq-long .a p:last-child { margin-bottom: 0; }

/* ---------- 15. 卡片 / 区块基础 ---------- */
.card {
  position: relative; overflow: hidden;
  padding: 30px 28px; border-radius: var(--r-l);
  border: 1px solid var(--line); background: var(--glass);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: transform .55s var(--ease), box-shadow .55s var(--ease), border-color .4s;
  transform-style: preserve-3d;
}
.card:hover { box-shadow: var(--shadow-m); border-color: var(--clay-l); }
.card__glow {
  position: absolute; inset: 0; opacity: 0; pointer-events: none;
  background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 50%), rgba(224, 120, 86, .15), transparent 62%);
  transition: opacity .45s var(--ease-soft);
}
.card:hover .card__glow { opacity: 1; }
.card--flat { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--cream-2); }
.card-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.note {
  padding: 14px 18px; border-radius: var(--r-m); font-size: 13.5px; color: var(--ink-2);
  background: rgba(135, 168, 120, .10); border-left: 3px solid var(--sage);
}
.note--clay { background: rgba(224, 120, 86, .09); border-left-color: var(--clay); }

/* ---------- 16. 首屏 ---------- */
.hero { position: relative; padding: 76px 0 86px; overflow: hidden; }
.hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; opacity: .62; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: var(--r-pill); margin-bottom: 24px;
  border: 1px solid var(--line-2); background: var(--glass-2);
  font-size: 13px; color: var(--ink-2); letter-spacing: .05em;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--sage);
  animation: pulse 2.6s var(--ease-soft) infinite;
}
.hero h1 { font-size: clamp(32px, 4.9vw, 56px); line-height: 1.24; letter-spacing: -.005em; }
.hero h1 .hl {
  position: relative; color: var(--clay-d); white-space: nowrap;
}
html[data-theme="dark"] .hero h1 .hl { color: var(--clay); }
.hero h1 .hl::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .06em; height: .34em;
  background: linear-gradient(90deg, rgba(224, 120, 86, .26), rgba(135, 168, 120, .22));
  border-radius: 3px; z-index: -1;
  transform: scaleX(0); transform-origin: left;
  animation: sweep 1.2s .5s var(--ease) forwards;
}
@keyframes sweep { to { transform: scaleX(1); } }

.hero-lead { margin-top: 22px; font-size: 18px; color: var(--ink-2); max-width: 30em; }
.hero .btn-row { margin-top: 32px; }
.hero-meta {
  margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 13.5px; color: var(--ink-3);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta .ck { color: var(--sage-d); }

/* 首屏插画（自绘 SVG） */
.hero-art {
  position: relative; aspect-ratio: 1 / 1; max-width: 460px; width: 100%;
  margin-left: auto;
}
.hero-art svg { width: 100%; height: 100%; overflow: visible; }
.hero-art .float { animation: floaty 7s var(--ease-soft) infinite; }
.hero-art .float-2 { animation: floaty 7s .9s var(--ease-soft) infinite; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.hero-art .spin { animation: spin 42s linear infinite; transform-origin: center; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-art .spin-r { animation: spin 58s linear infinite reverse; transform-origin: center; }
.hero-art .dash {
  stroke-dasharray: 6 8;
  animation: dashMove 2.4s linear infinite;
}
@keyframes dashMove { to { stroke-dashoffset: -28; } }
/* 汇聚虚线：周期 10，偏移取 2 个周期保证无缝 */
.hero-art .flow {
  stroke-dasharray: 3 7;
  animation: dashFlow 3s linear infinite;
}
@keyframes dashFlow { to { stroke-dashoffset: -20; } }


/* ---------- 17. 滚动带 ---------- */
.marquee {
  overflow: hidden; padding: 20px 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--glass-2);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex; width: max-content; gap: 0;
  animation: marquee 34s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track span {
  font-family: var(--font-display); font-size: clamp(20px, 2.6vw, 30px);
  color: var(--ink-2); padding: 0 26px; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 26px;
}
.marquee__track span::after { content: "·"; color: var(--clay); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 18. 三层卡点 ---------- */
.layer-stack { display: grid; gap: 14px; }
.layer {
  display: grid; grid-template-columns: auto 1fr; gap: 24px;
  padding: 26px 28px; border-radius: var(--r-l);
  border: 1px solid var(--line); background: var(--glass);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: transform .55s var(--ease), box-shadow .5s var(--ease), border-color .4s;
}
.layer:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); border-color: var(--clay-l); }
.layer__no {
  font-family: var(--font-display); font-size: 44px; line-height: 1; color: var(--line-2);
  font-weight: 600; transition: color .5s var(--ease);
}
.layer:hover .layer__no { color: var(--clay); }
.layer h3 { font-size: 20px; margin-bottom: 8px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.layer h3 .pill {
  font-family: var(--font-body); font-size: 12px; font-weight: 600; letter-spacing: .08em;
  padding: 3px 11px; border-radius: var(--r-pill);
  background: rgba(224, 120, 86, .13); color: var(--clay-d);
}
html[data-theme="dark"] .layer h3 .pill { color: var(--clay); }
.layer dl { margin: 0; display: grid; gap: 10px; }
.layer dt { font-size: 12.5px; letter-spacing: .1em; color: var(--ink-3); }
.layer dd { margin: 0; font-size: 15.5px; color: var(--ink-2); }
.layer--open { border-color: var(--clay-l); }

/* ---------- 19. 服务块（五段式） ---------- */
.svc {
  position: relative; padding: 46px 0 52px;
  border-top: 1px solid var(--line);
}
.svc:first-of-type { border-top: 0; }
.svc__head { display: grid; grid-template-columns: auto 1fr; gap: 26px; align-items: start; margin-bottom: 34px; }
.svc__no {
  font-family: var(--font-mono); font-size: 15px; font-weight: 700; letter-spacing: .1em;
  color: var(--clay-d); padding: 9px 14px; border-radius: var(--r-m);
  border: 1px solid var(--line); background: var(--cream-2);
}
html[data-theme="dark"] .svc__no { color: var(--clay); }
.svc__head h2 { font-size: clamp(24px, 3.1vw, 34px); margin-bottom: 12px; }
.svc__promise { font-size: 17px; color: var(--ink-2); max-width: 46em; }
.svc__block { margin-top: 30px; }
.svc__block > h4 {
  font-family: var(--font-body); font-size: 13px; font-weight: 700;
  letter-spacing: .18em; color: var(--ink-3); margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px;
}
.svc__block > h4::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.method-name {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: var(--r-pill); margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(224, 120, 86, .14), rgba(135, 168, 120, .14));
  border: 1px solid var(--line);
  font-size: 14.5px; font-weight: 700; color: var(--ink);
}
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.steps--4 { grid-template-columns: repeat(2, 1fr); }
.step {
  padding: 20px; border-radius: var(--r-m);
  border: 1px solid var(--line); background: var(--cream-2);
  transition: transform .5s var(--ease), border-color .4s;
}
html[data-theme="dark"] .step { background: var(--cream-3); }
.step:hover { transform: translateY(-3px); border-color: var(--sage); }
.step__n {
  font-family: var(--font-mono); font-size: 12px; color: var(--clay-d);
  letter-spacing: .1em; display: block; margin-bottom: 8px;
}
html[data-theme="dark"] .step__n { color: var(--clay); }
.step b { display: block; font-size: 15.5px; margin-bottom: 5px; }
.step span { font-size: 14px; color: var(--ink-2); }

/* 「从哪开始」替代块 */
.starting {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 20px;
  padding: 26px; border-radius: var(--r-l);
  border: 1px solid var(--line); background: var(--cream-2);
}
html[data-theme="dark"] .starting { background: var(--cream-3); }
.starting h5 {
  font-size: 13px; letter-spacing: .14em; color: var(--ink-3); margin: 0 0 14px;
  font-family: var(--font-body); font-weight: 700;
}
.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.check-list li { display: flex; gap: 11px; align-items: flex-start; font-size: 15px; color: var(--ink-2); }
.check-list .ck { flex: none; color: var(--sage-d); margin-top: 4px; }
.no-list li { color: var(--ink-3); }
.no-list .ck { color: var(--ink-3); opacity: .7; }

/* ---------- 20. 案例卡 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case { display: flex; flex-direction: column; }
.case__top { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.case__avatar {
  width: 42px; height: 42px; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  font-family: var(--font-display); font-size: 17px; font-weight: 600; color: #fff;
  background: linear-gradient(140deg, var(--clay), var(--clay-d));
}
.case:nth-child(2) .case__avatar { background: linear-gradient(140deg, var(--sage), var(--sage-d)); }
.case:nth-child(3) .case__avatar { background: linear-gradient(140deg, #C9A26B, #A67F45); }
.case__who b { display: block; font-size: 15.5px; }
.case__who span { font-size: 12.5px; color: var(--ink-3); }
.case dl { margin: 0 0 18px; display: grid; gap: 11px; }
.case dt { font-size: 12px; letter-spacing: .1em; color: var(--ink-3); margin-bottom: 3px; }
.case dd { margin: 0; font-size: 14.5px; color: var(--ink-2); }
.case__foot {
  margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--sage-d);
}
html[data-theme="dark"] .case__foot { color: var(--sage); }

/* ---------- 21. 流程条 ---------- */
.flow { display: grid; gap: 18px; }
.flow__row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  align-items: stretch; position: relative;
}
.flow__step {
  position: relative; padding: 22px 20px 22px 34px;
  border-left: 1px dashed var(--line-2);
}
.flow__step:first-child { border-left: 0; padding-left: 20px; }
.flow__step .pt {
  position: absolute; left: -5px; top: 30px; width: 9px; height: 9px; border-radius: 50%;
  background: var(--cream); border: 2px solid var(--clay);
}
.flow__step:first-child .pt { display: none; }
.flow__step b { display: block; font-size: 15.5px; margin-bottom: 6px; }
.flow__step span { font-size: 14px; color: var(--ink-2); }
.flow__step .n {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--clay-d);
  letter-spacing: .1em; display: block; margin-bottom: 6px;
}

/* ---------- 22. 时间线 ---------- */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 1px;
  background: linear-gradient(180deg, var(--clay), var(--sage), transparent);
}
.tl-item { position: relative; padding: 0 0 28px; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 8px; width: 15px; height: 15px;
  border-radius: 50%; background: var(--cream); border: 2px solid var(--line-2);
  transition: border-color .4s, transform .4s var(--ease);
}
.tl-item:hover::before { border-color: var(--clay); transform: scale(1.15); }
.tl-item .yr {
  font-family: var(--font-mono); font-size: 13px; color: var(--clay-d); letter-spacing: .08em;
}
html[data-theme="dark"] .tl-item .yr { color: var(--clay); }
.tl-item b { display: block; font-size: 16.5px; margin: 4px 0 5px; }
.tl-item p { font-size: 14.5px; color: var(--ink-2); margin: 0; }

/* ---------- 23. 服务卡（首页三卡） ---------- */
.svc-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.svc-cards--2 { grid-template-columns: repeat(2, 1fr); }
.svc-card { display: flex; flex-direction: column; }
.svc-card__no {
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 700; letter-spacing: .14em;
  color: var(--clay-d); margin-bottom: 12px;
}
html[data-theme="dark"] .svc-card__no { color: var(--clay); }
.svc-card h3 { font-size: 20px; margin-bottom: 10px; }
.svc-card > p { font-size: 15px; color: var(--ink-2); }
.svc-card .hooks { list-style: none; margin: 18px 0 22px; padding: 0; display: grid; gap: 9px; }
.svc-card .hooks li {
  display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--ink-2);
}
.svc-card .hooks .ck { flex: none; color: var(--sage-d); margin-top: 4px; }
.svc-card .link-arrow { margin-top: auto; }

/* ---------- 24. 内容支柱 ---------- */
.pillar { display: flex; flex-direction: column; }
.pillar__ratio {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; color: var(--ink-3);
  margin-bottom: 10px;
}
.pillar h3 { font-size: 18px; margin-bottom: 8px; }
.pillar .do, .pillar .dont { font-size: 14px; color: var(--ink-2); margin-bottom: 10px; }
.pillar .do b, .pillar .dont b { color: var(--ink); }

/* ---------- 25. 表单 ---------- */
.form-grid { display: grid; gap: 16px; }
.form-row { display: grid; gap: 8px; }
.form-row--2 { grid-template-columns: 1fr 1fr; gap: 16px; }
label { font-size: 13.5px; color: var(--ink-2); letter-spacing: .04em; }
label .req { color: var(--clay); }
input, select, textarea {
  width: 100%; padding: 13px 15px; font-size: 15.5px; font-family: inherit;
  color: var(--ink); background: var(--cream);
  border: 1px solid var(--line-2); border-radius: var(--r-m);
  transition: border-color .3s, box-shadow .3s, background-color .3s;
}
html[data-theme="dark"] input, html[data-theme="dark"] select, html[data-theme="dark"] textarea { background: var(--cream-3); }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--clay); box-shadow: 0 0 0 4px rgba(224, 120, 86, .13);
}
textarea { min-height: 128px; resize: vertical; line-height: 1.7; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 4px; }
.form-msg { font-size: 14px; }
.form-msg.ok { color: var(--sage-d); }
.form-msg.err { color: var(--clay-d); }
[data-mode-note] { font-size: 12.5px; color: var(--ink-3); }

.result-panel {
  padding: 20px; border-radius: var(--r-m); font-size: 15px;
  background: rgba(135, 168, 120, .12); border: 1px solid rgba(135, 168, 120, .3);
  color: var(--ink); display: none;
}
.result-panel.is-on { display: block; animation: stepIn .5s var(--ease) both; }

/* ---------- 26. 门禁 / 会员 ---------- */
.gate {
  padding: 44px 34px; border-radius: var(--r-l); text-align: center;
  border: 1px dashed var(--line-2); background: var(--glass-2);
}
.gate svg { color: var(--clay); margin-bottom: 16px; }
.res-list { display: grid; gap: 12px; }
.res-item {
  display: flex; align-items: center; gap: 16px;
  padding: 18px 20px; border-radius: var(--r-m);
  border: 1px solid var(--line); background: var(--cream-2);
  transition: transform .45s var(--ease), border-color .4s;
}
html[data-theme="dark"] .res-item { background: var(--cream-3); }
.res-item:hover { transform: translateX(4px); border-color: var(--clay-l); }
.res-item .ic {
  flex: none; width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: rgba(224, 120, 86, .13); color: var(--clay-d);
}
.res-item b { display: block; font-size: 15.5px; }
.res-item span { font-size: 13px; color: var(--ink-3); }
.res-item .act { margin-left: auto; }

/* ---------- 27. 收口 CTA ---------- */
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  padding: 74px 34px; border-radius: var(--r-l);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, var(--cream-2), var(--cream));
}
html[data-theme="dark"] .cta-band { background: linear-gradient(150deg, var(--cream-3), var(--cream-2)); }
.cta-band::before {
  content: ""; position: absolute; width: 620px; height: 620px; border-radius: 50%;
  left: 50%; top: -70%; transform: translateX(-50%);
  background: radial-gradient(circle, var(--glow-clay), transparent 62%);
  pointer-events: none;
}
.cta-band h2 { font-size: clamp(25px, 3.4vw, 38px); max-width: 22em; margin: 0 auto 18px; }
.cta-band .lead { margin: 0 auto 30px; }
.cta-band .btn-row { justify-content: center; }
.cta-band > * { position: relative; z-index: 1; }

/* ---------- 28. 页脚 ---------- */
.site-footer {
  margin-top: 40px; padding: 56px 0 30px;
  border-top: 1px solid var(--line); background: var(--glass-2);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 34px; }
.footer-grid h4 {
  font-family: var(--font-body); font-size: 13px; font-weight: 700; letter-spacing: .14em;
  color: var(--ink-3); margin: 0 0 16px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-grid a { font-size: 14.5px; color: var(--ink-2); transition: color .3s; }
.footer-grid a:hover { color: var(--clay-d); }
.footer-brand p { font-size: 14.5px; color: var(--ink-2); max-width: 30em; }
.footer-bottom {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center;
  font-size: 13px; color: var(--ink-3);
}
.footer-bottom a { color: var(--ink-3); transition: color .3s; }
.footer-bottom a:hover { color: var(--ink); }
.footer-bottom .sep { opacity: .4; }
/* 备案号固定贴在最右侧，换行时也保持右对齐 */
.footer-bottom .beian { margin-left: auto; }

/* ---------- 29. 移动端常驻 CTA ---------- */
.mobile-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 100;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: var(--glass); border-top: 1px solid var(--line);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  gap: 10px;
}
.mobile-bar .btn { flex: 1; padding: 12px 16px; font-size: 14.5px; }

/* ---------- 30. 滚动渐显 ---------- */
.js-reveal .reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity .85s var(--ease), transform .85s var(--ease);
}
.js-reveal .reveal.in { opacity: 1; transform: none; }
.js-reveal .reveal[data-d="1"] { transition-delay: .07s; }
.js-reveal .reveal[data-d="2"] { transition-delay: .14s; }
.js-reveal .reveal[data-d="3"] { transition-delay: .21s; }
.js-reveal .reveal[data-d="4"] { transition-delay: .28s; }
.js-reveal .reveal[data-d="5"] { transition-delay: .35s; }

/* ---------- 31. 页面头 ---------- */
.page-head { padding: 66px 0 40px; position: relative; }
.page-head h1 { font-size: clamp(30px, 4.4vw, 50px); letter-spacing: -.005em; }
.page-head .lead { margin-top: 18px; }
.breadcrumb { font-size: 13px; color: var(--ink-3); margin-bottom: 16px; }
.breadcrumb a:hover { color: var(--clay-d); }

.words { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.word {
  padding: 10px 18px; border-radius: var(--r-pill);
  border: 1px solid var(--line); background: var(--cream-2);
  font-size: 14.5px; transition: transform .45s var(--ease), border-color .4s, color .3s;
}
html[data-theme="dark"] .word { background: var(--cream-3); }
.word:hover { transform: translateY(-2px); border-color: var(--clay); color: var(--clay-d); }

.quote {
  padding: 26px 30px; border-radius: var(--r-l);
  border-left: 3px solid var(--clay); background: var(--glass);
  font-family: var(--font-display); font-size: 19px; line-height: 1.8; color: var(--ink);
}
.quote cite { display: block; margin-top: 12px; font-family: var(--font-body); font-size: 13px; color: var(--ink-3); font-style: normal; }

.principle { padding: 26px 28px; border-radius: var(--r-l); border: 1px solid var(--line); background: var(--glass); }
.principle h3 { font-size: 19px; margin-bottom: 12px; display: flex; align-items: center; gap: 11px; }
.principle h3 .n {
  font-family: var(--font-mono); font-size: 12px; color: var(--clay-d); letter-spacing: .1em;
}
.principle .why { font-size: 14.5px; color: var(--ink-2); margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line-2); }

/* ---------- 32. 响应式 ---------- */
@media (max-width: 1024px) {
  .wrap { padding: 0 22px; }
  .hero-inner { grid-template-columns: 1fr; gap: 42px; }
  .hero-art { max-width: 340px; margin: 0 auto; }
  .section { padding: 74px 0; }
  .grid-six, .steps, .svc-cards, .case-grid, .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .starting { grid-template-columns: 1fr; }
  .flow__row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .nav { display: none; }
  .menu-btn { display: grid; }
  .nav.is-open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; left: 14px; right: 14px; top: calc(100% + 8px);
    padding: 8px; gap: 2px;
    background: var(--cream); border: 1px solid var(--line-2);
    border-radius: var(--r-l); box-shadow: var(--shadow-l);
    animation: menuIn .3s var(--ease) both;
  }
  .nav.is-open a {
    padding: 12px 16px; font-size: 15.5px; border-radius: 12px; letter-spacing: .04em;
  }
  .nav.is-open a::after { display: none; }
  .nav.is-open a:hover,
  .nav.is-open a[aria-current="page"] { color: var(--ink); background: rgba(224, 120, 86, .11); }

  /* 菜单打开时的遮罩：挡住底下的页面内容，避免文字与菜单叠在一起 */
  .nav-backdrop.is-on {
    display: block; position: fixed; inset: 0; z-index: 105;
    background: rgba(36, 31, 27, .30);
    animation: fadeIn .3s var(--ease-soft) both;
  }
  .menu-btn[aria-expanded="true"] {
    color: var(--clay-d); background: rgba(224, 120, 86, .13);
  }
  .split-contrast { grid-template-columns: 1fr; }
  .stat-counter, .stat-counter--3 { grid-template-columns: repeat(2, 1fr); }
  .steps, .steps--4 { grid-template-columns: 1fr; }
  .flow__row { grid-template-columns: 1fr; }
  .flow__step { border-left: 0; padding-left: 20px; }
  .quiz-body, .quiz-result { padding: 30px 24px 26px; }
  .module-head__top { gap: 12px; }
  .mobile-bar { display: flex; }
  body { padding-bottom: 68px; }
  .site-footer { padding-bottom: 90px; }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; line-height: 1.8; }
  .section { padding: 58px 0; }
  .grid-six, .grid-four, .svc-cards, .case-grid, .card-grid-3, .card-grid-2 { grid-template-columns: 1fr; }
  .stat-counter, .stat-counter--3, .stat-counter--2 { grid-template-columns: 1fr 1fr; }
  .btn-row .btn { width: 100%; }
  .hero .btn-row { flex-direction: column; align-items: stretch; }
  .hero { padding: 46px 0 56px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .faq-long .a { padding-left: 22px; }
  .layer { grid-template-columns: 1fr; gap: 12px; }
  .layer__no { font-size: 34px; }
  .svc__head { grid-template-columns: 1fr; gap: 14px; }
  .form-row--2 { grid-template-columns: 1fr; }
  .anchor-chips { width: 100%; border-radius: var(--r-l); }
  .anchor-chips a { flex: 1; justify-content: center; }
  .cta-band { padding: 52px 22px; }
  .quiz-opt { font-size: 15px; padding: 14px 16px; }
}

@media (max-width: 380px) {
  .wrap { padding: 0 16px; }
  .brand-name { font-size: 18px; }
}

/* ---------- 33. 无障碍与打印 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .js-reveal .reveal { opacity: 1 !important; transform: none !important; }
  .hero-canvas, .spotlight { display: none !important; }
}

@media print {
  body::before, body::after, .spotlight, .progress, .mobile-bar, .hero-canvas { display: none !important; }
  .js-reveal .reveal { opacity: 1 !important; transform: none !important; }
  .site-header { position: static; }
  .card, .gcell, .layer, .sc-col { break-inside: avoid; }
}