/* 复购宝 Refill 官网 · 耗材复购中台 SaaS */
:root {
  --brand-950: #0a1a33;
  --brand-900: #0f2749;
  --brand-800: #16407e;
  --brand-700: #1b56b0;
  --brand-600: #2563eb;
  --brand-400: #7ea8f2;
  --brand-200: #c7dafb;
  --brand-100: #e5eefd;
  --brand-50: #f3f7fe;
  --ink: #101827;
  --ink-soft: #55617a;
  --paper: #f4f7fb;
  --paper-deep: #e7edf6;
  --white: #fff;
  --accent: #14c8a0;
  --accent-soft: #d3f7ec;
  --line: rgba(16, 40, 80, .13);
  --line-light: rgba(255,255,255,.16);
  --shadow: 0 32px 80px rgba(10, 26, 51, .12);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 32px;
  --max: 1360px;
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-display: "Noto Serif SC", "Songti SC", "STSong", "Noto Serif CJK SC", "PingFang SC", serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--ink); background: var(--white); font: 16px/1.75 var(--font-sans); -webkit-font-smoothing: antialiased; }
body.nav-open { overflow: hidden; }
img, svg { max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
h1, h2, h3, h4, p, ul, ol { margin-top: 0; }
h1, h2, h3, h4 { color: inherit; line-height: 1.18; }
h1, h2 { letter-spacing: -.02em; }
h2, h3 { font-weight: 550; }
p { margin-bottom: 1em; }
ul, ol { margin-bottom: 1em; padding-left: 1.25em; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--brand-600); outline-offset: 3px; }
::selection { color: var(--white); background: var(--brand-700); }

.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; padding: 10px 16px; color: var(--white); background: var(--brand-900); border-radius: 8px; transition: top .2s ease; }
.skip-link:focus { top: 16px; }
.icon { width: 26px; height: 26px; fill: none; stroke: currentColor; }

/* Header */
.site-header { position: sticky; inset: 0 0 auto; z-index: 100; height: 76px; background: rgba(255,255,255,.9); border-bottom: 1px solid transparent; backdrop-filter: blur(16px) saturate(1.2); transition: height .25s ease, border-color .25s ease, box-shadow .25s ease; }
.site-header.is-scrolled { height: 66px; border-color: var(--line); box-shadow: 0 10px 30px rgba(10,26,51,.06); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 30px; }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; }
.brand img { display: block; width: 140px; }
.site-nav { margin-left: auto; }
.site-nav ul { display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; list-style: none; }
.site-nav a:not(.btn) { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 13px; color: #445067; font-size: 14px; border-radius: 999px; transition: color .2s ease, background .2s ease; }
.site-nav a:not(.btn):hover, .site-nav a.is-active:not(.btn) { color: var(--brand-800); background: var(--brand-50); }
.nav-cta { margin-left: 10px; }
.nav-toggle { display: none; width: 46px; height: 46px; margin-left: auto; padding: 0; color: var(--brand-900); background: transparent; border: 1px solid var(--line); border-radius: 50%; }
.nav-toggle span { display: block; width: 18px; height: 1px; margin: 5px auto; background: currentColor; transition: transform .2s ease; }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* Shared typography and controls */
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 20px; color: var(--brand-700); font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 8px; height: 8px; flex: none; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(20,200,160,.12); }
.eyebrow--light { color: var(--accent); }
.section-mark { margin: 0; color: var(--brand-700); font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.section { padding: 108px 0; }
.section--paper { background: var(--paper); }
.section--brand { color: var(--white); background: var(--brand-900); }
.section-head { max-width: 790px; margin-bottom: 56px; }
.section-head h2 { margin-bottom: 18px; font-size: clamp(32px, 4.2vw, 54px); font-weight: 550; letter-spacing: -.02em; }
.section-head > p:last-child { max-width: 650px; color: var(--ink-soft); font-size: 17px; }
.section-head--light h2 { color: var(--white); }
.section-head--light > p:last-child { color: rgba(255,255,255,.7); }
.split-head { max-width: none; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr); align-items: end; gap: 90px; }
.split-head h2 { margin: 0; }
.split-head > p { margin: 0 0 8px; }
.text-link { display: inline-flex; align-items: center; gap: 14px; padding-bottom: 3px; color: var(--brand-800); font-size: 14px; font-weight: 650; border-bottom: 1px solid currentColor; }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }
.text-link--light { color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 52px; padding: 13px 26px; font-weight: 650; line-height: 1.2; border: 1px solid transparent; border-radius: 16px; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn:hover { transform: translateY(-2px); }
.btn--primary { color: var(--white); background: var(--brand-600); }
.btn--primary:hover { background: var(--brand-700); }
.btn--secondary { color: var(--brand-900); background: var(--brand-100); }
.btn--secondary:hover { background: var(--brand-200); }
.btn--outline { color: var(--brand-800); background: transparent; border-color: var(--brand-600); }
.btn--outline:hover { background: var(--brand-50); border-color: var(--brand-600); }
.btn--sm { min-height: 42px; padding: 10px 20px; font-size: 14px; }
.btn--large { min-height: 60px; padding-inline: 32px; }

/* Home hero */
.hero { position: relative; overflow: hidden; color: var(--ink); background: linear-gradient(180deg, #eef4fd 0%, #f6f8fc 78%); }
.hero--home { min-height: 0; display: flex; align-items: center; padding: 64px 0 56px; }
.hero-grain { position: absolute; inset: 0; opacity: .28; pointer-events: none; background-image: radial-gradient(rgba(16,35,63,.10) .55px, transparent .55px); background-size: 7px 7px; mask-image: linear-gradient(90deg, #000, transparent 65%); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 48px; }
.hero-copy h1 { margin: 0 0 24px; color: var(--brand-950); font-size: clamp(40px, 4.4vw, 78px); font-weight: 550; line-height: 1.22; letter-spacing: -.02em; }
.hero-copy h1 em { color: var(--accent); font-weight: 600; font-style: normal; }
.hero-lead { max-width: 650px; margin-bottom: 32px; color: var(--muted); font-size: clamp(16px, 1.5vw, 19px); line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 30px; }
.hero-index { position: absolute; left: 24px; bottom: 28px; color: rgba(16,35,63,.25); font-size: 10px; letter-spacing: .16em; writing-mode: vertical-rl; }
.continuum { position: relative; aspect-ratio: 1; min-height: 420px; }
.continuum-ring { position: absolute; inset: 8%; border: 1px solid rgba(37,99,235,.16); border-radius: 50%; }
.continuum-ring--outer { animation: slow-spin 42s linear infinite; }
.continuum-ring--outer::before, .continuum-ring--inner::before { content: ""; position: absolute; width: 9px; height: 9px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 0 8px rgba(20,200,160,.08); }
.continuum-ring--outer::before { left: 13%; top: 13%; }
.continuum-ring--inner { inset: 24%; border-style: dashed; animation: slow-spin 30s linear reverse infinite; }
.continuum-ring--inner::before { right: 9%; bottom: 19%; background: var(--brand-400); }
.continuum-core { position: absolute; inset: 36%; display: grid; place-content: center; text-align: center; background: #fff; border: 1px solid rgba(37,99,235,.18); border-radius: 50%; box-shadow: 0 12px 40px rgba(37,99,235,.10); }
.continuum-core span { font-size: 30px; font-weight: 650; letter-spacing: -.02em; }
.continuum-core small { margin-top: 4px; color: var(--muted); font-size: 11px; letter-spacing: .16em; }
.continuum-node { position: absolute; min-width: 76px; padding: 10px 16px; text-align: center; color: var(--ink); background: rgba(255,255,255,.94); border: 1px solid rgba(37,99,235,.22); border-radius: 999px; box-shadow: 0 6px 18px rgba(16,35,63,.06); backdrop-filter: blur(8px); font-size: 13px; font-weight: 550; }
.continuum-node--one { left: 4%; top: 26%; }
.continuum-node--two { right: 6%; top: 18%; }
.continuum-node--three { right: 0; bottom: 23%; }
.continuum-node--four { left: 8%; bottom: 13%; }
.continuum-stroke { position: absolute; inset: 21%; width: 58%; height: 58%; overflow: visible; fill: none; stroke: var(--accent); stroke-width: 1.2; stroke-linecap: round; opacity: .55; }
@keyframes slow-spin { to { transform: rotate(360deg); } }

/* Home sections */
.statement { padding-block: 88px; }
.statement-grid { display: grid; grid-template-columns: 1fr 4fr; gap: 70px; }
.statement h2 { max-width: 900px; margin: 0 0 40px; font-size: clamp(38px, 5.4vw, 64px); font-weight: 550; letter-spacing: -.035em; }
.statement-grid > div p { max-width: 700px; color: var(--ink-soft); font-size: 19px; }
.connection-section { overflow: hidden; }
.connection-path { display: grid; grid-template-columns: repeat(5, 1fr); margin: 0; padding: 0; list-style: none; counter-reset: path; }
.connection-path li { position: relative; min-height: 265px; padding: 30px 25px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.connection-path li + li { border-left: 1px solid var(--line); }
.connection-path li::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -1px; height: 3px; background: var(--brand-600); transition: right .4s ease; }
.connection-path li:hover::after { right: 0; }
.path-number { display: block; margin-bottom: 74px; color: var(--brand-600); font-size: 11px; letter-spacing: .14em; }
.connection-path h3 { margin-bottom: 13px; font-size: 24px; font-weight: 500; }
.connection-path p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.product-intro { position: relative; overflow: hidden; }
.product-intro::after { content: ""; position: absolute; right: -240px; bottom: -300px; width: 620px; height: 620px; border: 1px solid rgba(126,168,242,.12); border-radius: 50%; box-shadow: 0 0 0 90px rgba(126,168,242,.03); pointer-events: none; }
.product-stack { position: relative; z-index: 1; border-top: 1px solid var(--line-light); }
.product-layer { display: grid; grid-template-columns: 60px 1.2fr 1fr 42px; align-items: center; gap: 30px; padding: 34px 6px; border-bottom: 1px solid var(--line-light); }
.product-layer__number, .product-layer__type { color: var(--brand-400); font-size: 11px; letter-spacing: .14em; }
.product-layer__type { margin-bottom: 6px; }
.product-layer h3 { margin: 0; font-size: 25px; font-weight: 500; }
.product-layer > p { margin: 0; color: rgba(255,255,255,.66); }
.product-layer .icon { color: var(--brand-200); }
.section-more { position: relative; z-index: 1; margin: 38px 0 0; }
.journey-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.journey-card { min-height: 430px; display: flex; flex-direction: column; padding: 36px; background: var(--brand-50); border-radius: var(--radius); }
.journey-card > span { color: var(--brand-700); font-size: 10px; font-weight: 700; letter-spacing: .16em; }
.journey-card h3 { margin: auto 0 18px; font-size: 30px; font-weight: 600; letter-spacing: -.02em; }
.journey-card p { color: var(--ink-soft); }
.journey-card--dark { color: var(--white); background: var(--brand-950); }
.journey-card--dark > span, .journey-card--dark p { color: var(--brand-200); }
.journey-card--accent { color: var(--white); background: var(--brand-600); }
.journey-card--accent > span { color: var(--brand-200); }
.journey-card--accent p { color: rgba(255,255,255,.75); }
.journey-line { height: 52px; display: flex; align-items: center; margin-top: 24px; }
.journey-line::before { content: ""; flex: 1; height: 1px; background: currentColor; opacity: .25; }
.journey-line i { width: 9px; height: 9px; background: currentColor; border-radius: 50%; animation: pulse 2.4s ease infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 10px rgba(37,99,235,.1); } }
.venue-list { border-top: 1px solid var(--line); }
.venue-list a { display: grid; grid-template-columns: 72px 1fr 1.5fr 32px; align-items: center; gap: 24px; min-height: 112px; border-bottom: 1px solid var(--line); transition: padding .25s ease, background .25s ease; }
.venue-list a:hover { padding-inline: 18px; background: rgba(255,255,255,.6); }
.venue-list span { color: var(--brand-700); font-size: 11px; letter-spacing: .14em; }
.venue-list strong { font-size: 25px; font-weight: 600; }
.venue-list small { color: var(--ink-soft); font-size: 14px; }
.venue-list b { color: var(--brand-700); font-weight: 400; font-size: 22px; }
.quiet-note { max-width: 720px; margin: 42px 0 0 96px; color: var(--ink-soft); }
.proof-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.proof-copy { position: sticky; top: 120px; align-self: start; }
.proof-copy h2 { margin-bottom: 28px; font-size: clamp(40px, 5vw, 64px); font-weight: 500; }
.proof-copy > p:not(.eyebrow) { max-width: 450px; color: var(--ink-soft); font-size: 17px; }
.proof-copy .text-link { margin-top: 18px; }
.proof-steps { margin: 0; padding: 0; list-style: none; }
.proof-steps li { display: grid; grid-template-columns: 66px 1fr; gap: 30px; min-height: 175px; padding: 30px 0; border-top: 1px solid var(--line); }
.proof-steps li:last-child { border-bottom: 1px solid var(--line); }
.proof-steps span { width: 48px; height: 48px; display: grid; place-items: center; color: var(--brand-700); border: 1px solid var(--line); border-radius: 50%; font-size: 11px; }
.proof-steps h3 { margin: 0 0 10px; font-size: 25px; font-weight: 500; }
.proof-steps p { max-width: 540px; margin: 0; color: var(--ink-soft); }
.impact-teaser { position: relative; overflow: hidden; padding: 140px 0; color: var(--white); background: #122a4d; }
.impact-teaser::after { content: ""; position: absolute; width: 520px; height: 520px; right: -120px; top: 50%; border: 1px solid rgba(20,200,160,.22); border-radius: 50%; transform: translateY(-50%); box-shadow: 0 0 0 90px rgba(20,200,160,.025), 0 0 0 180px rgba(20,200,160,.018); }
.impact-teaser__inner { position: relative; z-index: 1; }
.impact-teaser .section-mark { color: var(--accent); }
.impact-teaser h2 { max-width: 830px; margin: 32px 0 24px; font: 550 clamp(34px, 4.6vw, 54px)/1.22 var(--font-display); letter-spacing: -.03em; }
.impact-teaser p:not(.section-mark) { max-width: 590px; color: rgba(255,255,255,.66); }
.impact-teaser .text-link { margin-top: 20px; }
.faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 100px; }
.faq-grid h2 { font-size: clamp(38px, 5vw, 58px); font-weight: 500; }
.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; }
.faq-q { width: 100%; display: flex; justify-content: space-between; gap: 24px; padding: 24px 0; color: var(--ink); text-align: left; background: none; border: 0; cursor: pointer; font-size: 18px; font-weight: 550; }
.faq-q span { position: relative; flex: 0 0 22px; width: 22px; height: 22px; }
.faq-q span::before, .faq-q span::after { content: ""; position: absolute; left: 4px; right: 4px; top: 10px; height: 1px; background: var(--brand-700); transition: transform .2s ease; }
.faq-q span::after { transform: rotate(90deg); }
.faq-q[aria-expanded="true"] span::after { transform: rotate(0); }
.faq-a { padding: 0 54px 24px 0; color: var(--ink-soft); }
.contact-section { padding: 0 0 34px; background: var(--paper); }
.contact-panel { position: relative; overflow: hidden; padding: 90px clamp(32px, 8vw, 110px); color: var(--white); background: var(--brand-900); border-radius: var(--radius-lg); }
.contact-panel::after { content: ""; position: absolute; width: 430px; height: 430px; right: -95px; bottom: -230px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; box-shadow: 0 0 0 75px rgba(255,255,255,.025); }
.contact-panel h2 { max-width: 760px; margin-bottom: 28px; font: 550 clamp(36px, 5vw, 60px)/1.15 var(--font-display); letter-spacing: -.035em; }
.contact-panel > p:not(.eyebrow) { max-width: 620px; color: rgba(255,255,255,.7); font-size: 17px; }
.contact-actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 26px; margin-top: 42px; }
.contact-actions > span { color: rgba(255,255,255,.58); font-size: 14px; }
.contact-actions > span a { color: var(--brand-200); border-bottom: 1px solid currentColor; }

/* Inner page hero */
.page-hero { position: relative; overflow: hidden; padding: 52px 0 48px; color: var(--ink); background: linear-gradient(180deg, #eef4fd 0%, #f6f8fc 78%); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { max-width: 980px; margin: 0 0 18px; color: var(--brand-950); font-size: clamp(32px, 4.4vw, 54px); font-weight: 500; }
.page-hero h1 em { color: var(--accent); font: inherit; font-style: normal; font-weight: 600; }
.page-hero__lead { max-width: 720px; margin: 0; color: rgba(255,255,255,.7); font-size: 18px; }
.page-hero__aside { margin-top: 46px; display: flex; flex-wrap: wrap; gap: 10px; }
.page-hero__aside span { padding: 7px 13px; color: var(--brand-200); border: 1px solid rgba(199,218,251,.2); border-radius: 999px; font-size: 12px; }
.breadcrumb { margin: 0 0 25px; color: var(--brand-400); font-size: 11px; letter-spacing: .15em; text-transform: uppercase; }

/* Inner content patterns */
.intro-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: 100px; }
.intro-grid h2 { margin-bottom: 28px; font-size: clamp(42px, 5vw, 64px); font-weight: 500; }
.intro-grid .lead-copy { color: var(--ink-soft); font-size: 18px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card { min-height: 330px; display: flex; flex-direction: column; padding: 34px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.feature-card:hover { transform: translateY(-3px); border-color: rgba(37,99,235,.25); box-shadow: 0 18px 44px rgba(16,35,63,.09); }
.feature-card__top { display: flex; justify-content: space-between; color: var(--brand-700); font-size: 11px; letter-spacing: .14em; }
.feature-card .icon { width: 32px; height: 32px; }
.feature-card h3 { margin: auto 0 18px; font-size: 26px; font-weight: 500; }
.feature-card p { margin: 0; color: var(--ink-soft); }
.status-board { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.status-column { padding: 34px; }
.status-column + .status-column { border-left: 1px solid var(--line); }
.status-label { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 26px; color: var(--brand-800); font-size: 12px; font-weight: 700; letter-spacing: .1em; }
.status-label::before { content: ""; width: 8px; height: 8px; background: var(--brand-600); border-radius: 50%; }
.status-column--pilot .status-label { color: #0b7f66; }
.status-column--pilot .status-label::before { background: var(--accent); }
.status-column--plan .status-label { color: #6b7590; }
.status-column--plan .status-label::before { background: #99a3bb; }
.status-column h3 { font-size: 24px; font-weight: 500; }
.status-column ul { margin: 20px 0 0; padding: 0; list-style: none; color: var(--ink-soft); }
.status-column li { padding: 9px 0; border-top: 1px solid var(--line); }
.boundary-grid { display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: boundary; }
.boundary-item { min-height: 260px; padding: 30px; border-top: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.boundary-item + .boundary-item { border-left: 1px solid var(--line-light); }
.boundary-item::before { counter-increment: boundary; content: "0" counter(boundary); display: block; margin-bottom: 70px; color: var(--brand-400); font-size: 11px; letter-spacing: .15em; }
.boundary-item h3 { font-size: 21px; font-weight: 500; }
.boundary-item p { margin: 0; color: rgba(255,255,255,.65); font-size: 14px; }
.principle-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); }
.principle-item { padding: 34px 30px; border-bottom: 1px solid var(--line); }
.principle-item:nth-child(odd) { border-right: 1px solid var(--line); }
.principle-item h3 { font-size: 22px; font-weight: 500; }
.principle-item p { margin: 0; color: var(--ink-soft); }

/* Scenes */
.scene-index { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px; }
.scene-index a { padding: 8px 14px; color: var(--brand-200); border: 1px solid rgba(199,218,251,.2); border-radius: 999px; font-size: 13px; }
.scene-index a:hover { color: var(--white); border-color: var(--accent); }
.scene-detail { scroll-margin-top: 82px; padding: 100px 0; }
.scene-detail:nth-child(even) { background: var(--paper); }
.scene-detail__grid { display: grid; grid-template-columns: 70px .72fr 1.28fr; gap: 55px; }
.scene-detail__number { color: var(--brand-700); font-size: 11px; letter-spacing: .15em; }
.scene-detail h2 { margin-bottom: 18px; font: 600 clamp(30px, 3.4vw, 42px)/1.2 var(--font-display); letter-spacing: -.03em; }
.scene-detail__task { color: var(--ink-soft); font-size: 17px; }
.scene-flow { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.scene-flow div { padding: 25px 22px; border-bottom: 1px solid var(--line); }
.scene-flow div + div { border-left: 1px solid var(--line); }
.scene-flow small { display: block; margin-bottom: 12px; color: var(--brand-700); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.scene-flow p { margin: 0; color: var(--ink-soft); font-size: 14px; }

/* Process */
.process-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.process-step { display: grid; grid-template-columns: 90px .75fr 1.25fr; gap: 35px; padding: 46px 0; border-bottom: 1px solid var(--line); }
.process-step__number { color: var(--brand-700); font-size: 12px; letter-spacing: .18em; }
.process-step h2 { margin: 0; font-size: 28px; font-weight: 500; }
.process-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.process-meta small { display: block; margin-bottom: 10px; color: var(--brand-700); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.process-meta p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.notice { display: grid; grid-template-columns: 180px 1fr; gap: 34px; margin-top: 50px; padding: 30px; color: var(--white); background: var(--brand-900); border-radius: var(--radius); }
.notice strong { color: var(--accent); font-size: 13px; letter-spacing: .12em; }
.notice p { margin: 0; color: rgba(255,255,255,.7); }

/* Impact */
.impact-principles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.impact-card { min-height: 360px; display: flex; flex-direction: column; padding: 38px; background: var(--brand-50); border-radius: var(--radius); }
.impact-card:nth-child(2), .impact-card:nth-child(3) { color: var(--white); background: var(--brand-900); }
.impact-card__number { color: var(--brand-600); font-size: 11px; letter-spacing: .15em; }
.impact-card:nth-child(2) .impact-card__number, .impact-card:nth-child(3) .impact-card__number { color: var(--brand-400); }
.impact-card h3 { margin: auto 0 18px; font: 600 28px/1.25 var(--font-display); letter-spacing: -.02em; }
.impact-card p { margin: 0; color: var(--ink-soft); }
.impact-card:nth-child(2) p, .impact-card:nth-child(3) p { color: rgba(255,255,255,.66); }
.cooperation-list { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.cooperation-list li { min-height: 210px; padding: 28px; border-bottom: 1px solid var(--line); }
.cooperation-list li + li { border-left: 1px solid var(--line); }
.cooperation-list span { color: var(--brand-700); font-size: 11px; }
.cooperation-list h3 { margin: 60px 0 0; font-size: 20px; font-weight: 500; }

/* About + contact */
.belief-quote { max-width: 970px; margin: 0; font: 550 clamp(30px, 4vw, 50px)/1.35 var(--font-display); letter-spacing: -.03em; }
.belief-quote em { color: var(--brand-600); font-style: normal; }
.relation-map { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.relation-card { min-height: 300px; display: flex; flex-direction: column; padding: 34px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.relation-card:hover { transform: translateY(-3px); border-color: rgba(37,99,235,.25); box-shadow: 0 18px 44px rgba(16,35,63,.09); }
.relation-card span { color: var(--brand-700); font-size: 11px; letter-spacing: .14em; }
.relation-card h3 { margin: auto 0 15px; font-size: 28px; font-weight: 500; }
.relation-card p { margin: 0; color: var(--ink-soft); }
.contact-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 90px; }
.contact-grid h2 { font-size: clamp(40px, 5vw, 62px); font-weight: 500; }
.contact-cards { border-top: 1px solid var(--line); }
.contact-row { display: grid; grid-template-columns: 150px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.contact-row b { color: var(--brand-700); font-size: 12px; letter-spacing: .08em; }
.contact-row a { color: var(--brand-800); text-decoration: underline; text-underline-offset: 4px; }

/* Legal */
.legal-layout { display: grid; grid-template-columns: 230px minmax(0, 760px); gap: 90px; align-items: start; }
.doc-meta { position: sticky; top: 110px; padding: 22px; color: var(--ink-soft); background: var(--brand-50); border-radius: var(--radius-sm); font-size: 13px; }
.article h2 { margin: 56px 0 18px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 28px; font-weight: 500; }
.article h2:first-child { margin-top: 0; }
.article h3 { margin: 28px 0 10px; font-size: 18px; }
.article p, .article li { color: var(--ink-soft); }
.article a { color: var(--brand-800); text-decoration: underline; text-underline-offset: 3px; }

/* Footer */
.site-footer { padding: 80px 0 24px; color: rgba(255,255,255,.7); background: var(--brand-950); }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 60px; }
.footer-brand img { width: 148px; opacity: .96; }
.footer-brand p { margin: 24px 0 5px; color: var(--white); font: 600 19px/1.5 var(--font-display); letter-spacing: -.01em; }
.footer-brand small { color: rgba(255,255,255,.45); }
.footer-grid h2 { margin: 0 0 20px; color: var(--brand-400); font-size: 11px; letter-spacing: .14em; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li { margin: 9px 0; font-size: 14px; }
.footer-grid a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 70px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; }
.footer-bottom p { margin: 0; }

/* Reveal */
[data-reveal] { opacity: 1; transform: none; }
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.75,.25,1); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  .site-header { height: 68px; }
  .nav-toggle { display: block; }
  .site-nav { position: fixed; inset: 68px 0 auto; max-height: calc(100svh - 68px); overflow-y: auto; padding: 18px 24px 30px; background: rgba(255,255,255,.98); border-top: 1px solid var(--line); transform: translateY(-120%); opacity: 0; visibility: hidden; transition: transform .25s ease, opacity .25s ease, visibility .25s; }
  .site-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .site-nav ul { display: block; }
  .site-nav a:not(.btn) { width: 100%; min-height: 52px; padding-inline: 6px; border-bottom: 1px solid var(--line); border-radius: 0; font-size: 17px; }
  .nav-cta { width: 100%; margin: 18px 0 0; }
  .hero-grid { grid-template-columns: 1fr .72fr; gap: 30px; }
  .continuum { min-height: 400px; }
  .connection-path { grid-template-columns: repeat(3, 1fr); }
  .connection-path li + li { border-left: 1px solid var(--line); }
  .connection-path li:nth-child(4) { border-left: 0; }
  .product-layer { grid-template-columns: 48px 1fr 1fr 34px; }
  .journey-card { min-height: 370px; padding: 28px; }
  .proof-grid, .faq-grid, .contact-grid { gap: 60px; }
  .feature-grid, .relation-map { grid-template-columns: 1fr; }
  .feature-card, .relation-card { min-height: 240px; }
  .status-board { grid-template-columns: 1fr; }
  .status-column + .status-column { border-left: 0; border-top: 1px solid var(--line); }
  .boundary-grid, .cooperation-list { grid-template-columns: repeat(2, 1fr); }
  .boundary-item:nth-child(3), .cooperation-list li:nth-child(3) { border-left: 0; }
  .scene-detail__grid { grid-template-columns: 50px .65fr 1.35fr; gap: 30px; }
  .process-step { grid-template-columns: 60px 1fr; }
  .process-meta { grid-column: 2; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 32px), var(--max)); }
  .section { padding: 82px 0; }
  .section-head { margin-bottom: 42px; }
  .section-head h2 { font-size: clamp(34px, 11vw, 48px); }
  .split-head, .statement-grid, .proof-grid, .faq-grid, .intro-grid, .contact-grid, .legal-layout { grid-template-columns: 1fr; gap: 34px; }
  .hero--home { min-height: auto; padding: 90px 0 80px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: clamp(54px, 17vw, 78px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { gap: 22px; }
  .continuum { min-height: 360px; max-width: 420px; width: 100%; margin: 20px auto 0; }
  .hero-index { display: none; }
  .statement { padding-block: 95px; }
  .statement h2 { font-size: clamp(44px, 13vw, 64px); }
  .statement-grid > div p { font-size: 17px; }
  .connection-path { grid-template-columns: 1fr; }
  .connection-path li { min-height: auto; padding: 24px 8px; border-left: 0 !important; border-top: 0; }
  .connection-path li:first-child { border-top: 1px solid var(--line); }
  .path-number { margin-bottom: 25px; }
  .product-layer { grid-template-columns: 44px 1fr 30px; gap: 18px; }
  .product-layer > p { grid-column: 2 / -1; }
  .journey-grid { grid-template-columns: 1fr; }
  .journey-card { min-height: 340px; }
  .venue-list a { grid-template-columns: 40px 1fr 24px; gap: 12px; padding: 20px 0; }
  .venue-list small { grid-column: 2; }
  .venue-list b { grid-column: 3; grid-row: 1 / span 2; }
  .quiet-note { margin-left: 0; }
  .proof-copy { position: static; }
  .impact-teaser { padding: 95px 0; }
  .contact-section { padding-bottom: 16px; }
  .contact-panel { padding: 64px 28px; border-radius: 24px; }
  .contact-panel h2 { font-size: clamp(44px, 13vw, 62px); }
  .page-hero { padding: 56px 0 48px; }
  .page-hero h1 { font-size: clamp(44px, 13vw, 64px); }
  .feature-grid, .impact-principles { grid-template-columns: 1fr; }
  .boundary-grid, .cooperation-list, .principle-list { grid-template-columns: 1fr; }
  .boundary-item, .cooperation-list li { min-height: auto; }
  .boundary-item::before { margin-bottom: 30px; }
  .boundary-item + .boundary-item, .cooperation-list li + li, .principle-item:nth-child(odd) { border-left: 0; border-right: 0; }
  .scene-detail { padding: 75px 0; }
  .scene-detail__grid { grid-template-columns: 1fr; gap: 16px; }
  .scene-flow { grid-template-columns: 1fr; margin-top: 20px; }
  .scene-flow div + div { border-left: 0; }
  .process-step { grid-template-columns: 42px 1fr; gap: 16px; padding: 34px 0; }
  .process-meta { grid-column: 1 / -1; grid-template-columns: 1fr; padding-left: 58px; }
  .notice { grid-template-columns: 1fr; gap: 12px; }
  .relation-map { grid-template-columns: 1fr; }
  .contact-row { grid-template-columns: 1fr; gap: 5px; }
  .doc-meta { position: static; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { display: block; }
  .footer-bottom p + p { margin-top: 8px; }
}

@media (max-width: 430px) {
  .brand img { width: 126px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .continuum { min-height: 320px; }
  .continuum-node { min-width: 60px; padding: 7px 10px; font-size: 11px; }
  .product-layer { padding: 28px 0; }
  .product-layer h3 { font-size: 21px; }
  .venue-list strong { font-size: 25px; }
  .proof-steps li { grid-template-columns: 50px 1fr; gap: 18px; }
  .faq-q { font-size: 16px; }
  .contact-actions { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
}

/* ── 复购宝新增组件 ───────────────────────────── */

/* 定价卡片 */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.price-card { display: flex; flex-direction: column; padding: 34px 30px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.price-card--featured { color: var(--white); background: var(--brand-900); border-color: var(--brand-900); box-shadow: var(--shadow); }
.price-card__tier { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.price-card h3 { margin: 0; font-size: 22px; font-weight: 600; }
.price-card__amount { display: flex; align-items: baseline; gap: 6px; margin-bottom: 6px; font-size: 42px; font-weight: 600; letter-spacing: -.035em; }
.price-card__amount small { font-size: 15px; font-weight: 500; color: var(--ink-soft); letter-spacing: 0; }
.price-card--featured .price-card__amount small { color: rgba(255,255,255,.6); }
.price-card__rate { margin: 0 0 22px; color: var(--brand-700); font-size: 14px; font-weight: 600; }
.price-card--featured .price-card__rate { color: var(--accent); }
.price-card ul { margin: 0 0 26px; padding: 0; list-style: none; }
.price-card li { position: relative; padding: 9px 0 9px 26px; color: var(--ink-soft); font-size: 14px; border-top: 1px solid var(--line); }
.price-card li::before { content: ""; position: absolute; left: 2px; top: 17px; width: 10px; height: 5px; border-left: 1.6px solid var(--accent); border-bottom: 1.6px solid var(--accent); transform: rotate(-45deg); }
.price-card--featured li { color: rgba(255,255,255,.72); border-top-color: rgba(255,255,255,.12); }
.price-card .btn { margin-top: auto; }
.badge { display: inline-flex; align-items: center; padding: 5px 11px; border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: .06em; }
.badge--accent { color: #06584a; background: var(--accent-soft); }
.badge--light { color: var(--brand-950); background: var(--accent); }

/* 数据表格 */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.data-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; }
.data-table caption { padding: 18px 22px 0; color: var(--ink-soft); font-size: 13px; text-align: left; }
.data-table th, .data-table td { padding: 14px 22px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.data-table thead th { color: var(--brand-800); font-size: 12px; font-weight: 700; letter-spacing: .08em; background: var(--brand-50); }
.data-table tbody tr:last-child th, .data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody th { width: 34%; color: var(--ink); font-weight: 600; }
.data-table td { color: var(--ink-soft); }
.data-table td strong { color: var(--ink); font-weight: 600; }
code, .mono { font-family: var(--font-mono); font-size: .92em; }
.data-table code { display: inline-block; padding: 2px 7px; color: var(--brand-800); background: var(--brand-50); border-radius: 6px; word-break: break-all; }

/* 提示条 */
.notice--light { color: var(--ink); background: var(--brand-50); border: 1px solid var(--line); }
.notice--light strong { color: var(--brand-700); }
.notice--light p { color: var(--ink-soft); }
.callout { display: flex; gap: 18px; padding: 22px 26px; background: var(--accent-soft); border-radius: var(--radius); }
.callout .icon { flex: 0 0 26px; color: #06584a; }
.callout p { margin: 0; color: #0a4c40; font-size: 15px; }

/* 图标清单 */
.checklist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 40px; margin: 0; padding: 0; list-style: none; }
.checklist li { display: grid; grid-template-columns: 26px 1fr; gap: 14px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.checklist .icon { width: 22px; height: 22px; margin-top: 3px; color: var(--brand-600); }
.checklist strong { display: block; font-weight: 600; }
.checklist span { color: var(--ink-soft); font-size: 14px; }
.section--brand .checklist li { border-bottom-color: var(--line-light); }
.section--brand .checklist .icon { color: var(--accent); }
.section--brand .checklist span { color: rgba(255,255,255,.66); }

/* 五列边界网格 */
.boundary-grid--five { grid-template-columns: repeat(5, 1fr); }
.boundary-item--light { border-color: var(--line); }

/* 行内小标签 */
.inline-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.inline-tags li { padding: 6px 12px; color: var(--brand-800); background: var(--brand-50); border: 1px solid var(--line); border-radius: 999px; font-size: 13px; }

@media (max-width: 1050px) {
  .price-grid { grid-template-columns: 1fr; }
  .boundary-grid--five { grid-template-columns: repeat(2, 1fr); }
  .boundary-grid--five .boundary-item:nth-child(3) { border-left: 0; }
  .checklist { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .boundary-grid--five { grid-template-columns: 1fr; }
  .callout { flex-direction: column; gap: 12px; padding: 20px; }
  .data-table th, .data-table td { padding: 12px 16px; }
}
.notice p b { color: var(--white); font-weight: 700; }
.notice--light p b { color: var(--brand-700); }

/* ── 视觉规范（PRD 第八章：三色角色 / 图形母题 / 字体与组件）────────── */

/* 标题：Noto Serif SC 900，正文行宽 ≤65 字符 */
h1, h2, h3 { font-family: var(--font-display); }
h1, h2 { font-weight: 900; letter-spacing: -.02em; }
.section-head h2, .statement h2, .faq-grid h2, .intro-grid h2, .contact-grid h2,
.hero-copy h1, .page-hero h1 { font-weight: 900; }
.impact-teaser h2 { font: 900 clamp(34px, 4.6vw, 54px)/1.22 var(--font-display); letter-spacing: -.03em; }
.contact-panel h2 { font: 900 clamp(36px, 5vw, 60px)/1.15 var(--font-display); letter-spacing: -.035em; }
.scene-detail h2 { font: 900 clamp(30px, 3.4vw, 42px)/1.2 var(--font-display); letter-spacing: -.03em; }
.belief-quote { font: 700 clamp(30px, 4vw, 50px)/1.35 var(--font-display); letter-spacing: -.03em; }
.article p, .article li { max-width: 65ch; }

/* 薄荷小圆点：eyebrow 与段落标记前的「下一单落点」 */
.eyebrow, .section-mark { position: relative; padding-left: 15px; }
.eyebrow::before, .section-mark::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 7px; height: 7px;
  background: var(--accent); border-radius: 50%; transform: translateY(-50%);
}

/* FAQ 展开态：薄荷小点 */
.faq-q { align-items: center; }
.faq-q::before {
  content: ""; flex: 0 0 8px; width: 8px; height: 8px; margin-right: 12px;
  background: transparent; border-radius: 50%; transition: background .2s ease;
}
.faq-q[aria-expanded="true"]::before { background: var(--accent); }

/* 卡片：白底细边框，hover 上浮 2px */
.feature-card, .relation-card, .price-card, .journey-card {
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.feature-card:hover, .relation-card:hover, .price-card:hover, .journey-card:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, .35);
  box-shadow: 0 16px 36px rgba(10, 26, 51, .10);
}
.price-card__fit { margin: 0 0 18px; color: var(--ink-soft); font-size: 13px; line-height: 1.6; }
.price-card--featured .price-card__fit { color: rgba(255, 255, 255, .66); }

.page-hero .hero-arc { right: -12%; top: 54%; width: 46vw; opacity: .12; }
.hero-arc circle:first-child {
  fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round;
  stroke-dasharray: 1160 1353; transform: rotate(-90deg); transform-origin: center;
  animation: arc-draw 1.5s ease-out .15s both;
}
.hero-arc circle:last-child { fill: currentColor; }

/* 深色只留给页脚与少量对比卡：hero 走浅色轻盈底 */
.boundary-item--light { border-color: var(--line); }
.boundary-item--light::before { color: var(--brand-600); }
.boundary-item--light h3 { color: var(--ink); }
.boundary-item--light p { color: var(--ink-soft); }

/* ── 气质与克制（PRD 第九章：质感 / 留白 / 手机优先）────────── */

/* 纸张质感：浅色区块叠极淡噪点（约 3%）与竖向渐变，肉眼只感到「不那么平」 */
.section--paper {
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.03'/%3E%3C/svg%3E"),
    linear-gradient(180deg, #f6f8fc 0%, var(--paper) 42%, var(--paper-deep) 135%);
}

/* 深蓝区块：≤3% 透明度的薄荷/品牌蓝晕光与底部渐隐，质感是「注意到」不是「看见」 */
.hero--home, .page-hero, .section--brand, .contact-panel, .price-card--featured {
  background-image:
    radial-gradient(900px 340px at 18% -12%, rgba(20, 200, 160, .03), transparent 62%),
    radial-gradient(760px 320px at 96% 118%, rgba(37, 99, 235, .03), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, .02), rgba(0, 0, 0, .03));
}

/* 卡片静置即有层次：一层贴地的细影 + 一层散开的大影；hover 再加深（配合第八章上浮） */
.price-card:not(.price-card--featured), .feature-card, .relation-card, .journey-card {
  box-shadow: 0 1px 2px rgba(10, 26, 51, .05), 0 14px 34px -22px rgba(10, 26, 51, .16);
}
.price-card:not(.price-card--featured):hover, .feature-card:hover, .relation-card:hover, .journey-card:hover {
  box-shadow: 0 2px 4px rgba(10, 26, 51, .06), 0 24px 46px -22px rgba(10, 26, 51, .24);
}

/* 字重字号纵深差：标题更紧更重，正文更轻、行距更大 */
.page-hero__lead, .lead-copy, .hero-lead, .section-head > p, .split-head > p { line-height: 1.9; }
.section-head > p, .split-head > p { color: var(--ink-soft); }
.feature-card p, .relation-card p, .journey-card p, .price-card p, .checklist span, .boundary-item p { line-height: 1.85; }

/* 留白是内容：桌面段距加大，一屏只说一件事 */
@media (min-width: 761px) {
  .section { padding: 118px 0; }
  .section-head { margin-bottom: 62px; }
  .statement { padding-block: 172px; }
}

/* 手机优先（390px 基线）：间距、字号与对比块收窄，不靠缩放 */
@media (max-width: 430px) {
  .section { padding: 76px 0; }
  .section-head { margin-bottom: 36px; }
  .page-hero__aside { margin-top: 34px; }
  .page-hero__aside span { padding: 6px 11px; font-size: 11.5px; }
  .price-card { padding: 28px 24px; }
  .relation-card, .feature-card, .journey-card { min-height: 0; padding: 28px 24px; }
  .data-table { font-size: 14px; }
  .data-table th, .data-table td { padding: 11px 14px; }
  .legal-layout { gap: 26px; }
  .doc-meta { padding: 18px; }
  .checklist li { grid-template-columns: 24px 1fr; gap: 12px; }
  .process-meta { padding-left: 0; }
  .process-step { grid-template-columns: 1fr; gap: 10px; }
  .process-step__number { margin-bottom: 4px; }
}

/* ---- hero 右栏：微信提醒样机（产品在动，客户自己悟） ---- */
.hero-mock { position: relative; min-height: 420px; display: flex; align-items: center; justify-content: center; }
.wx-card {
  width: min(340px, 88%); text-align: left; background: #fff;
  border: 1px solid rgba(37,99,235,.10); border-radius: 18px;
  box-shadow: 0 24px 60px rgba(16,35,63,.12), 0 4px 14px rgba(16,35,63,.05);
  padding: 20px 22px;
}
.wx-card--back { position: absolute; transform: translate(-10%, -9%) rotate(-4deg) scale(.96); opacity: .85; filter: saturate(.9); }
.wx-card--front { position: relative; }
.wx-card__head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.wx-avatar { width: 34px; height: 34px; display: grid; place-content: center; border-radius: 9px; background: linear-gradient(135deg,#2563eb,#14c8a0); color: #fff; font-size: 15px; font-weight: 650; }
.wx-title { font-weight: 650; font-size: 14px; color: var(--brand-950); }
.wx-card__head time { margin-left: auto; font-size: 12px; color: var(--muted); }
.wx-body { margin: 0 0 16px; font-size: 14px; line-height: 1.7; color: var(--ink-soft); }
.wx-body strong { color: var(--brand-950); font-size: 15px; }
.wx-btn { display: block; text-align: center; padding: 10px; border-radius: 10px; background: var(--accent); color: #fff; font-size: 14px; font-weight: 650; text-decoration: none; }
.hero-mock__dot { position: absolute; right: 8%; top: 12%; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 8px rgba(20,200,160,.12); }
@media (max-width: 900px) {
  .hero-mock { min-height: 300px; }
  .wx-card { width: min(320px, 92%); }
}

/* ---- 能力演示区：把真实产品摆上来 ---- */
.demo-section { background: linear-gradient(180deg, #f6f8fc 0%, var(--paper) 100%); }
.demo-grid { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: 48px; align-items: start; }
.demo-panel { margin: 0; }
.demo-panel figcaption { margin-top: 18px; text-align: center; color: var(--muted); font-size: 14px; }

/* 手机样机 */
.demo-phone { width: min(320px, 100%); margin: 0 auto; background: #fff; border: 1px solid rgba(16,35,63,.10); border-radius: 30px; box-shadow: 0 30px 70px rgba(16,35,63,.14), 0 6px 18px rgba(16,35,63,.06); overflow: hidden; }
.demo-phone__bar { display: flex; justify-content: space-between; align-items: center; padding: 10px 18px 4px; font-size: 11px; color: var(--ink); }
.demo-phone__notch { width: 84px; height: 16px; background: var(--brand-950); border-radius: 999px; }
.demo-phone__app { padding: 4px 16px 22px; }
.demo-app-name { margin: 0 0 12px; font-size: 13px; font-weight: 650; color: var(--brand-950); text-align: center; }
.demo-device { background: #f6f8fc; border: 1px solid var(--line); border-radius: 16px; padding: 14px; margin-bottom: 14px; }
.demo-device__head { display: flex; justify-content: space-between; align-items: center; font-size: 13px; font-weight: 650; color: var(--brand-950); }
.demo-live { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--brand-700); }
.demo-live i, .demo-offline i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.demo-offline { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--muted); }
.demo-offline i { background: #b8c4d6; }
.demo-device__figure { height: 110px; display: grid; place-content: center; margin: 10px 0; background: linear-gradient(160deg, #e8f1fe, #e6f7f1); border-radius: 12px; }
.demo-drop { width: 44px; height: 54px; display: block; background: linear-gradient(160deg, #2563eb, #14c8a0); clip-path: polygon(50% 0, 100% 62%, 50% 100%, 0 62%); }
.demo-device__specs { display: flex; justify-content: space-between; margin: 0; font-size: 12px; }
.demo-device__specs dt { color: var(--muted); }
.demo-device__specs dd { margin: 0; font-weight: 600; color: var(--brand-950); }
.demo-storage { border: 1px solid rgba(37,99,235,.16); background: #fff; border-radius: 14px; padding: 12px 14px; margin-bottom: 14px; }
.demo-storage__head { display: flex; justify-content: space-between; font-size: 13px; color: var(--brand-950); }
.demo-storage__head span { color: var(--muted); font-variant-numeric: tabular-nums; }
.demo-storage__bar { height: 6px; background: #e8eef6; border-radius: 999px; margin: 10px 0 12px; overflow: hidden; }
.demo-storage__bar i { display: block; height: 100%; background: linear-gradient(90deg, #2563eb, #14c8a0); border-radius: 999px; }
.demo-storage__btn { display: block; text-align: center; padding: 9px; border-radius: 10px; background: var(--accent); color: #fff; font-size: 13px; font-weight: 650; text-decoration: none; }
.demo-msg { list-style: none; margin: 0; padding: 0; }
.demo-msg li { display: flex; align-items: flex-start; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.demo-msg li:last-child { border-bottom: 0; }
.demo-msg__dot { width: 8px; height: 8px; margin-top: 6px; flex: none; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(20,200,160,.12); }
.demo-msg__dot--mint { background: #7bc6ff; box-shadow: 0 0 0 4px rgba(123,198,255,.14); }
.demo-msg__dot--gray { background: #b8c4d6; box-shadow: 0 0 0 4px rgba(184,196,214,.14); }
.demo-msg b { display: block; font-size: 13px; color: var(--brand-950); }
.demo-msg p { margin: 2px 0 0; font-size: 12px; color: var(--ink-soft); }
.demo-msg time { margin-left: auto; flex: none; font-size: 11px; color: var(--muted); }

/* 后台样机 */
.demo-browser { background: #fff; border: 1px solid rgba(16,35,63,.10); border-radius: 18px; box-shadow: 0 30px 70px rgba(16,35,63,.12), 0 6px 18px rgba(16,35,63,.05); overflow: hidden; }
.demo-browser__bar { display: flex; align-items: center; gap: 6px; padding: 11px 14px; background: #f2f5f9; border-bottom: 1px solid var(--line); }
.demo-browser__bar span { width: 10px; height: 10px; border-radius: 50%; background: #d6dfeb; }
.demo-browser__bar span:first-child { background: #ff9c8f; }
.demo-browser__bar span:nth-child(2) { background: #ffd27a; }
.demo-browser__bar span:nth-child(3) { background: #9fe3c2; }
.demo-browser__bar em { margin-left: 10px; font-style: normal; font-size: 12px; color: var(--muted); }
.demo-dash { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 16px; }
.demo-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.demo-stats > div { background: #f6f8fc; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.demo-stats b { display: block; font-size: 22px; color: var(--brand-950); font-variant-numeric: tabular-nums; }
.demo-stats small { color: var(--muted); font-size: 12px; }
.demo-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.demo-table th { text-align: left; padding: 8px 10px; color: var(--muted); font-weight: 500; border-bottom: 1px solid var(--line); }
.demo-table td { padding: 9px 10px; color: var(--ink); border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.demo-table tr:last-child td { border-bottom: 0; }
.demo-rules { display: flex; flex-direction: column; gap: 10px; }
.demo-rule { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; }
.demo-rule b { display: block; font-size: 13px; color: var(--brand-950); }
.demo-rule small { color: var(--muted); font-size: 12px; }
.demo-badge { flex: none; padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 650; }
.demo-badge--rec { color: var(--brand-700); background: #e8f1fe; }
.demo-badge--edit { color: #8a6d1f; background: #fdf3d8; }
.demo-switch { margin-left: auto; flex: none; width: 36px; height: 20px; border-radius: 999px; background: #d6dfeb; position: relative; }
.demo-switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: left .2s ease; }
.demo-switch--on { background: var(--accent); }
.demo-switch--on::after { left: 18px; }
.demo-attribution { border: 1px dashed rgba(37,99,235,.3); border-radius: 12px; padding: 12px 14px; }
.demo-attribution p { margin: 0 0 8px; font-size: 12px; color: var(--muted); }
.demo-attribution > div { display: flex; justify-content: space-between; font-size: 13px; padding: 4px 0; color: var(--ink); }
.demo-attribution b { font-variant-numeric: tabular-nums; }

@media (max-width: 900px) {
  .demo-grid { grid-template-columns: 1fr; gap: 36px; }
  .demo-stats { grid-template-columns: repeat(2, 1fr); }
}