:root {
  /* === 颜色：基础（保持原有视觉风格） === */
  --ink: #171a18;
  --ink-soft: #333a35;
  --ink-muted: #6d746f;
  --paper: #f7f5ef;
  --paper-2: #ece7dc;
  --paper-3: #e7dfd0;
  --white: #fffdf8;
  --sand: #e7dfd0;
  --accent: #b66335;
  --accent-dark: #8b4726;
  --accent-light: #d68a58;
  --accent-soft: rgba(182, 99, 53, 0.12);
  --green: #49675b;
  --green-soft: rgba(73, 103, 91, 0.1);
  --line: rgba(23, 26, 24, 0.15);
  --line-light: rgba(255, 255, 255, 0.18);

  /* === 颜色：语义色（用于交互/状态） === */
  --color-info: #185fa5;
  --color-info-soft: #e6f1fb;
  --color-success: #0f6e56;
  --color-success-soft: #e1f5ee;
  --color-warning: #ba7517;
  --color-warning-soft: #faeeda;
  --color-danger: #993c1d;
  --color-danger-soft: #faece7;

  /* === 阴影与形状 === */
  --shadow: 0 24px 80px rgba(34, 28, 20, 0.12);
  --shadow-sm: 0 8px 24px rgba(34, 28, 20, 0.08);
  --radius: 22px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --radius-pill: 999px;
  --max: 1180px;

  /* === 排版系统 === */
  --text-xs: 0.72rem;
  --text-sm: 0.85rem;
  --text-base: 0.92rem;
  --text-md: 1rem;
  --text-lg: 1.08rem;
  --text-xl: 1.35rem;
  --text-2xl: 1.8rem;
  --text-display: clamp(2.2rem, 4vw, 4rem);
  --text-hero: clamp(3rem, 6vw, 5.7rem);

  /* === 间距系统（4px 基准） === */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6.875rem;

  /* === 组件：卡片 === */
  --card-bg: var(--white);
  --card-border: var(--line);
  --card-radius: var(--radius);
  --card-padding: 30px;
  --card-hover-shadow: var(--shadow);
  --card-hover-transform: translateY(-6px);

  /* === 组件：按钮 === */
  --btn-height: 50px;
  --btn-padding: 0.8rem 1.35rem;
  --btn-radius: var(--radius-pill);
  --btn-primary-bg: var(--accent);
  --btn-primary-color: var(--white);
  --btn-primary-hover-bg: var(--accent-dark);
  --btn-ghost-border: rgba(255, 255, 255, 0.35);
  --btn-ghost-hover-border: rgba(255, 255, 255, 0.7);
  --btn-outline-border: var(--line);
  --btn-outline-color: var(--ink);

  /* === 组件：输入框 === */
  --input-border: rgba(23, 26, 24, 0.2);
  --input-bg: #fbfaf6;
  --input-focus-border: var(--accent);
  --input-focus-ring: rgba(182, 99, 53, 0.12);
  --input-radius: var(--radius-sm);

  /* === 组件：导航 === */
  --nav-height: 78px;
  --nav-height-mobile: 68px;
  --nav-bg: rgba(247, 245, 239, 0.9);
  --nav-blur: blur(18px);

  /* === 过渡 === */
  --ease: 0.25s ease;
  --ease-slow: 0.55s ease;

  /* === Ant 风格：主色阶与状态组件 token === */
  --accent-600: var(--accent);
  --accent-700: var(--accent-dark);
  --primary-active-bg: #9c5430;
  --btn-disabled-bg: rgba(23, 26, 24, 0.12);
  --btn-disabled-color: rgba(23, 26, 24, 0.35);
  --alert-radius: 12px;
  --tag-radius: 999px;
  --focus-ring: 2px solid var(--accent);
  --focus-ring-offset: 2px;
  --badge-size: 18px;
}

* { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.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;
}
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 9999;
  padding: .7rem 1rem;
  background: var(--white);
  color: var(--ink);
  border-radius: 10px;
}
.skip-link:focus { top: 1rem; }

.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section-light, .section-sand, .section-dark { padding: 110px 0; }
.section-light { background: var(--paper); }
.section-sand { background: var(--paper-2); }
.section-dark { background: var(--ink); color: var(--white); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 239, .9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { width: 42px; height: 42px; flex: 0 0 auto; color: var(--accent); }
.brand-mark circle, .brand-mark path { fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 1.02rem; letter-spacing: .08em; }
.brand small { margin-top: 1px; color: #6d746f; font-size: .72rem; letter-spacing: .05em; }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: .92rem; }
.main-nav a { position: relative; }
.main-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s ease;
}
.main-nav a:hover::after, .main-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { padding: .65rem 1rem; border: 1px solid var(--ink); border-radius: 999px; }
.nav-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.nav-toggle span:not(.sr-only) { width: 24px; height: 2px; background: var(--ink); display: block; margin: 5px 0; }

.hero { padding-top: 70px; overflow: hidden; }
.hero-grid { min-height: 690px; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 80px; }
.eyebrow { margin: 0 0 18px; color: var(--accent); font-size: .74rem; font-weight: 700; letter-spacing: .24em; }
.hero h1, h2, h3, p { margin-top: 0; }
.hero h1 { margin-bottom: 28px; font-size: clamp(3rem, 6vw, 5.7rem); line-height: 1.05; letter-spacing: -.055em; font-weight: 550; }
.hero h1 em { color: #d68a58; font-style: normal; }
.hero-lead { max-width: 690px; color: rgba(255,255,255,.72); font-size: 1.08rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 34px 0 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: .8rem 1.35rem; border-radius: 999px; border: 1px solid transparent; cursor: pointer; transition: .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--accent); color: var(--white); }
.button-primary:hover { background: var(--accent-dark); }
.button-ghost { border-color: rgba(255,255,255,.35); color: var(--white); }
.button-ghost:hover { border-color: rgba(255,255,255,.7); }
.button-outline { border: 1px solid var(--btn-outline-border); color: var(--btn-outline-color); background: transparent; }
.button-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.trust-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 18px; color: rgba(255,255,255,.58); font-size: .85rem; }
.trust-list li::before { content: "·"; margin-right: 8px; color: var(--accent); }

.hero-visual { position: relative; height: 620px; min-width: 0; }
.movement-figure { position: absolute; inset: 70px 10px 45px 15px; display: grid; place-items: center; }
.movement-figure svg { width: 78%; height: 100%; overflow: visible; }
.movement-figure circle, .movement-figure path { fill: none; stroke: rgba(255,255,255,.68); stroke-width: 4; stroke-linecap: round; }
.movement-figure .accent-stroke { stroke: #d88754; stroke-width: 2.3; }
.movement-figure img { width: 92%; height: 100%; object-fit: contain; object-position: center top; filter: drop-shadow(0 20px 50px rgba(0,0,0,.35)); }
.hero-figure-link { display: block; width: 100%; height: 100%; cursor: pointer; border-radius: 14px; outline-offset: 4px; transition: transform .25s ease, filter .25s ease; }
.hero-figure-link:hover img { transform: scale(1.02); filter: drop-shadow(0 20px 50px rgba(0,0,0,.35)) drop-shadow(0 0 18px rgba(223,138,74,.35)); }
.hero-figure-link:hover::after { opacity: 1; }
.hero-figure-link:focus-visible { outline: 2px solid var(--accent); }
.hero-figure-link::after { content: "了解运动康复本能论 →"; position: absolute; right: 12px; bottom: 12px; padding: 7px 13px; border-radius: 999px; background: rgba(0,0,0,.55); border: 1px solid rgba(223,138,74,.6); color: #f0dfca; font-size: .76rem; letter-spacing: .12em; opacity: 0; transition: opacity .25s ease; pointer-events: none; backdrop-filter: blur(6px); }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; }
.orbit-one { width: 510px; height: 510px; right: -80px; top: 45px; transform: rotate(18deg); }
.orbit-two { width: 360px; height: 540px; right: 40px; top: 30px; transform: rotate(-24deg); }
.principle-chip { position: absolute; display: flex; align-items: center; gap: 9px; padding: 11px 15px; border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.06); border-radius: 999px; backdrop-filter: blur(8px); font-size: .9rem; }
.principle-chip span { color: var(--accent); font-size: .72rem; }
.chip-1 { top: 55px; left: 5px; }
.chip-2 { top: 47%; right: -5px; }
.chip-3 { bottom: 65px; left: 50px; }

.section-heading { max-width: 760px; margin-bottom: 52px; }
.section-heading h2, .split-heading h2, .about-copy h2, .boundary h2, .contact h2, .faq h2 { font-size: clamp(2.2rem, 4vw, 4rem); line-height: 1.12; letter-spacing: -.04em; font-weight: 540; }
.section-heading > p:last-child, .split-heading > p, .about-copy > p, .contact-copy > p { color: #606762; }
.split-heading { display: grid; grid-template-columns: 1.15fr .85fr; gap: 90px; align-items: end; margin-bottom: 55px; }
.split-heading.light > p { color: rgba(255,255,255,.68); }

.card-grid { display: grid; gap: 22px; }
.three-columns { grid-template-columns: repeat(3, 1fr); }
.info-card { min-height: 280px; padding: 30px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); transition: .25s ease; }
.info-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card-index { display: inline-block; margin-bottom: 54px; color: var(--accent); font-size: .78rem; font-weight: 700; letter-spacing: .14em; }
.info-card h3 { margin-bottom: 14px; font-size: 1.35rem; }
.info-card p { margin: 0; color: #606762; }

.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.principle-card { position: relative; min-height: 430px; padding: 34px; overflow: hidden; color: var(--white); background: var(--ink); border-radius: var(--radius); }
.principle-card h3 { margin-top: 170px; font-size: 1.8rem; }
.principle-card p { color: rgba(255,255,255,.73); }
.principle-card small { position: absolute; left: 34px; right: 34px; bottom: 30px; color: rgba(255,255,255,.52); }
.principle-symbol { position: absolute; top: 26px; left: 26px; width: 150px; height: 150px; }
.principle-symbol::before, .principle-symbol::after { content: ""; position: absolute; border: 1px solid rgba(216,135,84,.78); }
.elasticity::before { width: 110px; height: 110px; border-radius: 50%; top: 16px; left: 16px; }
.elasticity::after { width: 62px; height: 118px; border-radius: 50%; transform: rotate(42deg); top: 5px; left: 48px; }
.support::before { width: 94px; height: 94px; border-radius: 2px; transform: rotate(45deg); top: 26px; left: 27px; }
.support::after { width: 110px; height: 1px; border-width: 1px 0 0; top: 122px; left: 17px; }
.coordination::before { width: 115px; height: 60px; border-radius: 50%; transform: rotate(25deg); top: 30px; left: 12px; }
.coordination::after { width: 115px; height: 60px; border-radius: 50%; transform: rotate(-25deg); top: 54px; left: 20px; }
.method-video { margin-top: 22px; border-radius: var(--radius); overflow: hidden; background: var(--ink); border: 1px solid rgba(23,26,24,.12); }
.method-video video { display: block; width: 100%; height: 420px; object-fit: cover; background: #000; }
.values-strip { margin-top: 22px; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(23,26,24,.15); border-radius: var(--radius); overflow: hidden; background: rgba(255,255,255,.38); }
.values-strip div { padding: 24px; border-right: 1px solid var(--line); }
.values-strip div:last-child { border-right: 0; }
.values-strip strong, .values-strip span { display: block; }
.values-strip span { margin-top: 7px; color: #6f756f; font-size: .84rem; }

.service-list { border-top: 1px solid var(--line); }
.service-row { display: grid; grid-template-columns: 70px 1fr 150px; gap: 25px; align-items: center; padding: 32px 0; border-bottom: 1px solid var(--line); }
.service-number { color: var(--accent); font-size: .78rem; letter-spacing: .14em; }
.service-row h3 { margin-bottom: 8px; font-size: 1.4rem; }
.service-row p { margin: 0; color: #626963; }
.service-row > span { justify-self: end; color: var(--green); font-size: .86rem; }

.timeline { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line-light); }
.timeline li { position: relative; padding: 30px 24px 0 0; border-right: 1px solid var(--line-light); min-height: 230px; }
.timeline li:not(:first-child) { padding-left: 24px; }
.timeline li:last-child { border-right: 0; }
.timeline span { color: var(--accent); font-size: .78rem; letter-spacing: .12em; }
.timeline h3 { margin-top: 48px; font-size: 1.2rem; }
.timeline p { color: rgba(255,255,255,.62); font-size: .9rem; }

.about-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 90px; align-items: center; }
.portrait-placeholder { min-height: 610px; padding: 18px; background: var(--paper-2); border-radius: 200px 200px 26px 26px; }
.portrait-frame { height: 100%; min-height: 574px; display: grid; place-content: center; text-align: center; border: 1px dashed rgba(23,26,24,.28); border-radius: 180px 180px 18px 18px; color: #747a75; background: linear-gradient(145deg, rgba(255,255,255,.6), rgba(183,171,148,.22)); }
.portrait-frame span, .portrait-frame small { display: block; }
.portrait-frame small { margin-top: 8px; }
.portrait-placeholder.has-photo { padding: 0; overflow: hidden; background: var(--paper-2); }
.portrait-placeholder.has-photo img { width: 100%; height: 100%; min-height: inherit; object-fit: cover; }
.about-copy > p { font-size: 1rem; }
.credential-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 30px; }
.credential-grid span { padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; font-size: .86rem; background: rgba(255,255,255,.55); }

.case-template { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgba(255,255,255,.45); }
.case-template div { min-height: 220px; padding: 26px; border-right: 1px solid var(--line); }
.case-template div:last-child { border-right: 0; }
.case-template span, .case-template strong, .case-template small { display: block; }
.case-template span { margin-bottom: 58px; color: var(--accent); font-size: .76rem; }
.case-template strong { margin-bottom: 12px; }
.case-template small { color: #6f756f; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.article-card { min-height: 260px; padding: 28px; background: var(--white); border-radius: var(--radius); border: 1px solid var(--line); }
.article-card > span { color: var(--accent); font-size: .78rem; }
.article-card h3 { margin: 58px 0 12px; font-size: 1.26rem; }
.article-card p { color: #666d67; }
.section-link { margin: 28px 0 0; }
.section-link a { color: var(--accent-dark); font-weight: 700; }

.boundary-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 110px; align-items: start; }
.boundary-copy > p, .boundary-copy li { color: rgba(255,255,255,.7); }
.boundary-copy ul { padding-left: 1.2rem; }
.boundary-copy li { margin-bottom: 12px; }
.text-link { display: inline-block; margin-top: 18px; color: #d88a58; }

.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: start; }
.contact-methods { display: grid; gap: 12px; margin-top: 35px; }
.contact-item { width: 100%; text-align: left; border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; background: rgba(255,255,255,.55); cursor: pointer; }
.contact-item span, .contact-item strong, .contact-item small { display: block; }
.contact-item span { color: #737973; font-size: .78rem; }
.contact-item strong { margin: 4px 0; font-size: 1rem; }
.contact-item small { color: var(--accent); }
.inquiry-form { padding: 32px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.form-heading { margin-bottom: 24px; }
.form-heading h3 { margin-bottom: 5px; font-size: 1.5rem; }
.form-heading p { color: #707770; font-size: .86rem; }
.inquiry-form label { display: block; margin-bottom: 18px; }
.inquiry-form label > span:first-child { display: block; margin-bottom: 7px; font-size: .88rem; font-weight: 650; }
.inquiry-form input, .inquiry-form textarea { width: 100%; border: 1px solid rgba(23,26,24,.2); border-radius: 12px; padding: 12px 14px; background: #fbfaf6; outline: none; }
.inquiry-form input:focus, .inquiry-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(182,99,53,.12); }
.consent-row { display: grid !important; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; }
.consent-row input { width: 18px; height: 18px; margin-top: 4px; }
.consent-row span { font-size: .82rem !important; font-weight: 400 !important; color: #69706a; }
.form-output { display: none; margin-top: 20px; padding: 16px; white-space: pre-wrap; background: var(--paper-2); border-radius: 14px; font-size: .88rem; }
.form-output.is-visible { display: block; }

.faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 100px; }
.accordion details { border-top: 1px solid var(--line); padding: 20px 0; }
.accordion details:last-child { border-bottom: 1px solid var(--line); }
.accordion summary { cursor: pointer; font-weight: 650; list-style: none; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; float: right; color: var(--accent); }
.accordion details[open] summary::after { content: "−"; }
.accordion p { margin: 14px 35px 0 0; color: #666d67; }
.faq-jump { display: inline-block; margin: 14px 35px 0 0; color: var(--accent-dark); font-weight: 700; font-size: 0.88rem; }
.faq-jump:hover { color: var(--accent); }

.site-footer { padding: 56px 0; color: rgba(255,255,255,.72); background: #0f1110; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 60px; align-items: start; }
.footer-brand .brand small { color: rgba(255,255,255,.5); }
.footer-brand + p { margin-top: 18px; color: rgba(255,255,255,.45); font-size: .86rem; }
.footer-links { display: grid; gap: 10px; }
.footer-note { font-size: .82rem; color: rgba(255,255,255,.45); }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); z-index: 999; padding: 10px 16px; border-radius: 999px; color: var(--white); background: var(--ink); opacity: 0; pointer-events: none; transition: .25s ease; box-shadow: var(--shadow); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.js .reveal.visible { opacity: 1; transform: translateY(0); }

.template-page { min-height: 100vh; padding: 72px 0; background: var(--paper); }
.template-card { max-width: 900px; margin: 0 auto; padding: clamp(28px, 6vw, 64px); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.template-card h1 { max-width: 700px; font-size: clamp(2.3rem, 5vw, 4.4rem); line-height: 1.1; letter-spacing: -.04em; }
.template-card h2 { margin-top: 2.4rem; font-size: 1.5rem; }
.template-card li { margin: .7rem 0; }
.article-category { color: var(--accent); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.1em; margin: -1rem 0 1.5rem; }
.template-back { display: inline-block; margin-bottom: 34px; color: var(--accent-dark); font-weight: 700; }
.empty-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.empty-gallery > div { min-height: 185px; display: grid; place-items: center; padding: 18px; text-align: center; color: #737973; background: var(--paper-2); border: 1px dashed rgba(23,26,24,.28); border-radius: 14px; }

/* === 证书图片画廊 === */
.cert-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 32px 0; }
.cert-item { display: flex; flex-direction: column; gap: 12px; }
.cert-item figure { margin: 0; padding: 18px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-sm); display: grid; place-items: center; min-height: 260px; }
.cert-item img { max-width: 100%; max-height: 420px; object-fit: contain; border-radius: var(--radius-xs); box-shadow: var(--shadow-sm); }
.cert-item figcaption { font-size: var(--text-sm); color: var(--ink-soft); line-height: 1.5; }
.cert-item strong { display: block; color: var(--ink); font-size: var(--text-base); margin-bottom: 4px; }

/* === 媒体报道详情 === */
.media-feature { display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: start; margin: 32px 0; }
.media-feature figure { margin: 0; }
.media-feature img { width: 100%; height: auto; border-radius: var(--radius-sm); border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.media-meta { color: var(--ink-muted); font-size: var(--text-sm); margin: 6px 0 14px; }
.media-quote { padding-left: 18px; border-left: 3px solid var(--accent); color: var(--ink-soft); font-style: italic; margin: 18px 0; }

@media (max-width: 720px) {
  .cert-gallery, .media-feature { grid-template-columns: 1fr; }
  .cert-item img { max-height: 320px; }
}

@media (max-width: 980px) {
  .section-light, .section-sand, .section-dark { padding: 82px 0; }
  .main-nav { position: fixed; inset: 78px 0 auto 0; display: none; padding: 22px 20px 28px; background: var(--paper); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; }
  .main-nav.open { display: flex; }
  html:not(.js) .main-nav { position: static; display: flex; flex-direction: row; flex-wrap: wrap; padding: 0; border: 0; background: transparent; }
  .nav-toggle { display: block; }
  .hero-grid, .about-grid, .contact-grid, .boundary-grid, .faq-grid, .split-heading { grid-template-columns: 1fr; gap: 42px; }
  .hero-grid { min-height: auto; }
  .hero-visual { height: 640px; }
  .movement-figure { inset: 45px 10px 120px 15px; }
  .chip-3 { bottom: 95px; }
  .method-video video { height: 320px; }
  .three-columns, .principle-grid, .article-grid { grid-template-columns: 1fr; }
  .principle-card { min-height: 350px; }
  .principle-card h3 { margin-top: 120px; }
  .values-strip { grid-template-columns: repeat(2, 1fr); }
  .values-strip div:nth-child(2) { border-right: 0; }
  .values-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .timeline { grid-template-columns: 1fr; }
  .timeline li, .timeline li:not(:first-child) { min-height: auto; padding: 22px 0; border-right: 0; border-bottom: 1px solid var(--line-light); }
  .timeline h3 { margin: 12px 0 6px; }
  .case-template { grid-template-columns: 1fr; }
  .case-template div { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .case-template div:last-child { border-bottom: 0; }
  .case-template span { margin-bottom: 15px; }
  .portrait-placeholder { min-height: 520px; }
  .portrait-frame { min-height: 484px; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 28px, var(--max)); }
  .nav-wrap { min-height: 68px; }
  .main-nav { inset: 68px 0 auto 0; }
  html:not(.js) .nav-wrap { align-items: flex-start; padding: 14px 0; }
  html:not(.js) .main-nav { width: 100%; gap: 12px 18px; padding-top: 10px; font-size: .82rem; }
  html:not(.js) .nav-cta { padding: .25rem .6rem; }
  .brand small { display: none; }
  .hero { padding-top: 30px; }
  .hero h1 { font-size: clamp(2.5rem, 11vw, 4.2rem); }
  .hero-visual { height: 540px; }
  .movement-figure { inset: 35px 5px 100px 5px; }
  .chip-3 { bottom: 85px; }
  .method-video video { height: 220px; }
  .orbit-one { width: 390px; height: 390px; right: -120px; }
  .orbit-two { width: 270px; height: 410px; right: -5px; }
  .principle-chip { font-size: .78rem; }
  .chip-2 { right: 0; }
  .section-heading h2, .split-heading h2, .about-copy h2, .boundary h2, .contact h2, .faq h2 { font-size: 2.4rem; }
  .service-row { grid-template-columns: 44px 1fr; }
  .service-row > span { grid-column: 2; justify-self: start; }
  .values-strip { grid-template-columns: 1fr; }
  .values-strip div { border-right: 0; border-bottom: 1px solid var(--line); }
  .values-strip div:last-child { border-bottom: 0; }
  .credential-grid { grid-template-columns: 1fr; }
  .portrait-placeholder { min-height: 430px; }
  .portrait-frame { min-height: 394px; }
  .inquiry-form { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* === 导航高亮当前区块 (P0-5) === */
.main-nav a.nav-active { color: var(--accent); }
.main-nav a.nav-active::after { transform: scaleX(1); transform-origin: left; }
.main-nav a.nav-active.nav-cta { color: var(--accent); border-color: var(--accent); }

/* === 滚动进度指示器 (P0-3) === */
.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0%;
  background: var(--accent);
  transition: width 0.1s linear;
}

/* === 悬浮咨询按钮 (P0-2) === */
.floating-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: var(--accent);
  color: var(--white);
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 24px rgba(182, 99, 53, 0.3);
  font-size: 0.92rem;
  font-weight: 500;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity var(--ease), transform var(--ease);
}
.floating-cta svg { width: 20px; height: 20px; }
.floating-cta.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }

/* === 返回顶部按钮 (P1-5) === */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 84px;
  z-index: 89;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  color: var(--ink);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity var(--ease), transform var(--ease);
  box-shadow: var(--shadow-sm);
}
.back-to-top svg { width: 20px; height: 20px; }
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 680px) {
  .floating-cta { right: 16px; bottom: 16px; padding: 12px 16px; font-size: 0.85rem; }
  .back-to-top { right: 16px; bottom: 72px; }
}

/* === 服务人群底部轻量 CTA (P1-1) === */
.audience-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 48px;
  padding: 22px 28px;
  background: var(--accent-soft);
  border: 1px solid rgba(182, 99, 53, 0.25);
  border-radius: var(--radius);
  color: var(--accent-dark);
  font-weight: 500;
  flex-wrap: wrap;
}
.audience-cta a { color: var(--accent-dark); font-weight: 700; }
.audience-cta svg { width: 18px; height: 18px; }

/* === 服务流程步骤微标注 (P2-2) === */
.timeline li { display: flex; flex-direction: column; }
.timeline .step-note {
  margin-top: 14px;
  padding: 10px 12px;
  background: rgba(216, 135, 84, 0.1);
  border-left: 2px solid var(--accent-light);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.78);
}

/* === 服务边界折叠面板 (P0-4) === */
.boundary-intro { max-width: 640px; margin: 0 0 24px; color: rgba(255, 255, 255, 0.72); }
.boundary-folding { margin: 36px 0 0; }
.boundary-folding details {
  border-top: 1px solid var(--line-light);
  padding: 20px 0;
}
.boundary-folding details:last-child { border-bottom: 1px solid var(--line-light); }
.boundary-folding summary {
  cursor: pointer;
  font-weight: 650;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.boundary-folding summary::-webkit-details-marker { display: none; }
.boundary-folding summary::after {
  content: "+";
  color: var(--accent-light);
  font-size: 1.3rem;
  flex: 0 0 auto;
}
.boundary-folding details[open] summary::after { content: "−"; }
.boundary-folding .boundary-copy > p,
.boundary-folding .boundary-copy li { color: rgba(255, 255, 255, 0.7); }
.boundary-folding .boundary-copy ul { padding-left: 1.2rem; }
.boundary-folding .boundary-copy li { margin-bottom: 12px; }
.boundary-folding .text-link { display: inline-block; margin-top: 18px; color: var(--accent-light); }

/* === 案例档案交互式手风琴 (P1-2) === */
.case-accordion { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgba(255, 255, 255, 0.45); }
.case-accordion details { border-bottom: 1px solid var(--line); }
.case-accordion details:last-child { border-bottom: 0; }
.case-accordion summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 22px 26px;
  cursor: pointer;
  list-style: none;
  font-weight: 650;
}
.case-accordion summary::-webkit-details-marker { display: none; }
.case-accordion summary .case-index { color: var(--accent); font-size: 0.78rem; letter-spacing: 0.12em; flex: 0 0 auto; }
.case-accordion summary .case-title { font-size: 1.15rem; }
.case-accordion summary::after { content: "+"; margin-left: auto; color: var(--accent); font-size: 1.3rem; }
.case-accordion details[open] summary::after { content: "−"; }
.case-accordion .case-body { padding: 0 26px 24px; }
.case-accordion .case-body strong { display: block; margin-bottom: 8px; color: var(--ink); }
.case-accordion .case-body p, .case-accordion .case-body small { color: #6f756f; margin: 0; line-height: 1.7; }
.case-accordion .case-body small { display: block; margin-top: 6px; font-size: 0.82rem; }
.case-transition {
  margin: 28px 0 0;
  padding: 22px 26px;
  background: var(--color-success-soft);
  border: 1px solid rgba(15, 110, 86, 0.2);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: #27500a;
}
.case-transition a { color: var(--color-success); font-weight: 700; }

/* === 知识内容卡片链接 (P1-3) === */
.article-card .article-link { display: inline-block; margin-top: 18px; color: var(--accent-dark); font-weight: 700; font-size: 0.88rem; }
.article-card .article-link:hover { color: var(--accent); }

/* === 表单提交后多通道引导 (P0-1) === */
.form-actions { margin-top: 20px; }
.form-actions-hint { margin: 0 0 14px; font-size: 0.88rem; font-weight: 600; color: var(--ink-soft); }
.form-actions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.form-actions-grid .button { min-height: 46px; padding: 0.7rem 1rem; font-size: 0.85rem; }
.form-actions-note { margin: 14px 0 0; font-size: 0.82rem; color: var(--accent); }
@media (max-width: 680px) {
  .form-actions-grid { grid-template-columns: 1fr; }
}

@media print {
  .site-header, .site-footer, .skip-link, .nav-toggle, .toast, .floating-cta, .back-to-top, .scroll-progress { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .legal-page, .template-page { padding: 0; background: #fff; }
  .legal-card, .template-card { max-width: none; padding: 0; border: 0; box-shadow: none; }
  a { text-decoration: underline; }
  h1, h2 { break-after: avoid; }
  p, li { orphans: 3; widows: 3; }
}

/* =====================================================================
 * Ant Design 设计语言 · 零依赖 CSS 化（全站生效）
 * 风格：Ant 组件规范 + 现有陶土橙/墨黑/纸张色体系
 * ===================================================================== */

/* 全局键盘焦点环（WCAG 2.1 AA） */
:focus-visible { outline: var(--focus-ring); outline-offset: var(--focus-ring-offset); }

/* === Alert 提示条（Ant 风格） === */
.alert {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 18px; border-radius: var(--alert-radius);
  font-size: 0.9rem; line-height: 1.7;
  border: 1px solid transparent;
}
.alert-icon { flex-shrink: 0; width: 18px; height: 18px; margin-top: 3px; }
.alert-success { background: var(--color-success-soft); border-color: rgba(15, 110, 86, 0.25); color: #0b5a46; }
.alert-success .alert-icon { color: var(--color-success); }
.alert-info { background: var(--color-info-soft); border-color: rgba(24, 95, 165, 0.25); color: #12487c; }
.alert-info .alert-icon { color: var(--color-info); }
.alert-warning { background: var(--color-warning-soft); border-color: rgba(186, 117, 23, 0.3); color: #8a5a0e; }
.alert-warning .alert-icon { color: var(--color-warning); }
.alert-error { background: var(--color-danger-soft); border-color: rgba(153, 60, 29, 0.28); color: #7a2f17; }
.alert-error .alert-icon { color: var(--color-danger); }

/* === Tag 标签（Ant 风格） === */
.tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 12px; border-radius: var(--tag-radius);
  font-size: 0.75rem; letter-spacing: 0.04em;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  border: 1px solid transparent; white-space: nowrap;
}
.tag-accent { background: var(--accent-soft); color: var(--accent-dark); border-color: rgba(182, 99, 53, 0.3); }
.tag-success { background: var(--color-success-soft); color: var(--color-success); border-color: rgba(15, 110, 86, 0.28); }
.tag-info { background: var(--color-info-soft); color: var(--color-info); border-color: rgba(24, 95, 165, 0.28); }
.tag-warning { background: var(--color-warning-soft); color: #8a5a0e; border-color: rgba(186, 117, 23, 0.3); }
.tag-error { background: var(--color-danger-soft); color: var(--color-danger); border-color: rgba(153, 60, 29, 0.28); }

/* === Badge 徽标（Ant 风格） === */
.badge { position: relative; display: inline-flex; }
.badge sup {
  position: absolute; top: -6px; right: -10px; min-width: var(--badge-size); height: var(--badge-size);
  padding: 0 5px; border-radius: var(--radius-pill);
  background: var(--color-danger); color: #fff; font-size: 0.68rem; line-height: var(--badge-size);
  text-align: center; font-family: "PingFang SC", system-ui, sans-serif; font-weight: 500;
}

/* === Breadcrumb 面包屑 === */
.breadcrumb {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: 0.8rem; color: var(--ink-muted); font-family: "PingFang SC", system-ui, sans-serif;
  margin: 0 0 18px;
}
.breadcrumb a { color: var(--accent-dark); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { color: var(--line); }
.breadcrumb .current { color: var(--ink-soft); font-weight: 500; }

/* === 按钮状态增强（Ant 风格） === */
.button { position: relative; }
.button:active { transform: translateY(0) scale(0.98); }
.button:disabled,
.button[aria-disabled="true"] {
  background: var(--btn-disabled-bg); color: var(--btn-disabled-color);
  border-color: transparent; cursor: not-allowed; transform: none; box-shadow: none;
}
.button.is-loading { pointer-events: none; opacity: 0.8; }
.button.is-loading::before {
  content: ""; width: 14px; height: 14px; margin-right: 8px;
  border: 2px solid currentColor; border-top-color: transparent;
  border-radius: 50%; animation: btn-spin 0.7s linear infinite;
}
@keyframes btn-spin { to { transform: rotate(360deg); } }

/* === 通用卡片抬升 === */
.card-lift { transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease); }
.card-lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: rgba(182, 99, 53, 0.35); }

/* === 统一子页导航条（注入子页面用） === */
.site-navbar { display: flex; align-items: center; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.site-navbar .brand-mini { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: 0.92rem; }
.site-navbar .brand-mini svg { width: 22px; height: 22px; }
.site-navbar .nav-links { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
.site-navbar .nav-links a { padding: 5px 10px; border-radius: var(--radius-pill); font-size: 0.78rem; text-decoration: none; color: var(--ink-soft); transition: background 0.2s, color 0.2s; }
.site-navbar .nav-links a:hover { background: var(--accent-soft); color: var(--accent-dark); }
.site-navbar .nav-links a.current { background: var(--accent); color: var(--white); }
@media (max-width: 680px) {
  .site-navbar { flex-wrap: wrap; }
  .site-navbar .nav-links { margin-left: 0; width: 100%; }
}

@media print {
  .site-navbar { display: none; }
}