:root {
  --paper: #F7F6F2; --surface: #FFFFFF; --ink: #111316; --graphite: #4A4F57; --muted: #7C818A;
  --line: #E3E1DA; --hair: #EDEBE5; --line-strong: #C9C6BD; --nav-hover: #ECEAE3;
  --accent: #B94B2A; --accent-deep: #8E3820; --accent-soft: #F5E3DA;
  --dark: #15181C; --dark-surface: #1E2227; --dark-line: #2E333A; --dark-text: #ECEAE4; --dark-muted: #9AA0A8;
  --accent-on-dark: #E7875F;
  --sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --gutter: 80px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-deep); }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.mono { font-family: var(--mono); font-weight: 500; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: 1440px; margin: 0 auto; }
.icon { width: 1em; height: 1em; flex-shrink: 0; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 54px; padding: 0 26px; border: 0; border-radius: 12px; background: var(--accent); color: #fff; font-size: 16px; font-weight: 500; cursor: pointer; transition: background .16s; }
.btn:hover { background: var(--accent-deep); color: #fff; }
.btn-line { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 54px; padding: 0 24px; border-radius: 12px; border: 1px solid var(--line-strong); background: transparent; color: var(--ink); font-size: 16px; font-weight: 500; cursor: pointer; transition: border-color .16s; }
.btn-line:hover { border-color: var(--ink); color: var(--ink); }
.btn[aria-disabled="true"], .btn-line[aria-disabled="true"] { background: var(--hair); color: var(--muted); border-color: var(--line); cursor: not-allowed; }
.btn-sm { height: 44px; padding: 0 20px; border-radius: 10px; font-size: 15px; }

/* ---------- 导航 ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--paper); border-bottom: 1px solid var(--line); }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; height: 80px; padding: 0 var(--gutter); max-width: 1440px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 12px; width: 300px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-logo { height: 52px; width: auto; display: block; }
.main-nav { display: flex; align-items: center; gap: 4px; font-size: 16px; }
.nav-a { display: inline-flex; align-items: center; gap: 6px; height: 44px; padding: 0 20px; border: 0; border-radius: 10px; background: transparent; color: var(--ink); font-size: 16px; font-weight: 500; cursor: pointer; }
.nav-a:hover { background: var(--nav-hover); color: var(--ink); }
.nav-a[aria-current="page"] { color: var(--accent); font-weight: 700; box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.nav-a[aria-expanded="true"] { background: var(--ink); color: #fff; }
.nav-a .chev { width: 14px; height: 14px; transition: transform .16s; }
.nav-a[aria-expanded="true"] .chev { transform: rotate(180deg); }
.nav-right { display: flex; align-items: center; justify-content: flex-end; gap: 12px; width: 300px; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; font-family: var(--mono); font-size: 12px; }
.lang a, .lang span { padding: 7px 11px; color: var(--muted); }
.lang .on { background: var(--ink); color: var(--paper); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; place-items: center; cursor: pointer; color: var(--ink); }

/* 产品下拉 */
.nav-item { position: static; }
.mega { position: absolute; left: 0; right: 0; top: 80px; background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: 0 30px 60px rgba(17,19,22,.18); }
.mega[hidden] { display: none !important; }
.mega-inner { max-width: 1440px; margin: 0 auto; padding: 36px var(--gutter) 28px; display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.3fr) minmax(240px,300px); gap: 40px; align-items: start; }
.mega-col { display: flex; flex-direction: column; gap: 8px; }
.mega-col + .mega-col { padding-left: 40px; border-left: 1px solid var(--hair); }
.mega-label { font-family: var(--mono); font-size: 11px; letter-spacing: .16em; padding-bottom: 8px; color: var(--muted); }
.mega-label.accent { color: var(--accent); }
.mega-row { display: grid; grid-template-columns: 52px 1fr; gap: 16px; align-items: center; padding: 14px; border-radius: 14px; color: var(--ink); }
.mega-row:hover, .mega-tool:hover { background: var(--paper); color: var(--ink); }
.mega-ico { width: 52px; height: 52px; border-radius: 14px; background: var(--ink); color: #fff; display: grid; place-items: center; }
.mega-ico.accent { background: var(--accent); }
.mega-ico svg { width: 24px; height: 24px; }
.mega-row b { display: block; font-size: 18px; font-weight: 700; }
.mega-row small { font-size: 14px; color: var(--graphite); }
.mega-tools { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 4px 16px; }
.mega-tool { display: flex; justify-content: space-between; align-items: baseline; padding: 14px; border-radius: 10px; color: var(--ink); }
.mega-tool { gap: 12px; }
.mega-tool b { font-size: 16px; font-weight: 700; white-space: nowrap; }
.mega-tool small { font-size: 13px; color: var(--muted); white-space: nowrap; flex-shrink: 0; }
.mega-row b, .mega-row small { overflow-wrap: anywhere; }
.mega-card { display: flex; flex-direction: column; gap: 14px; padding: 24px; border-radius: 18px; background: var(--dark); color: var(--dark-text); }
.mega-card .mono { font-size: 11px; letter-spacing: .16em; color: var(--accent-on-dark); }
.mega-card strong { font-size: 22px; font-weight: 900; line-height: 1.3; color: #fff; }
.mega-card .btn { margin-top: auto; height: 44px; font-size: 14px; border-radius: 10px; }
.mega-foot { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; padding-top: 20px; border-top: 1px solid var(--hair); font-size: 13px; color: var(--muted); }
.mega-foot a { font-size: 14px; font-weight: 500; }

/* 手机抽屉 */
.drawer { position: fixed; inset: 64px 0 0 0; z-index: 60; background: var(--paper); overflow-y: auto; padding: 8px 20px 40px; }
.drawer[hidden] { display: none !important; }
.drawer-group { border-bottom: 1px solid var(--line); padding: 16px 0; }
.drawer-label { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--muted); padding: 6px 0; }
.drawer a { display: flex; align-items: center; justify-content: space-between; min-height: 48px; color: var(--ink); font-size: 16px; }
.drawer a small { font-size: 12px; color: var(--muted); }
.drawer .drawer-top { font-weight: 700; font-size: 18px; }
body.drawer-open { overflow: hidden; }

/* ---------- 通用区块 ---------- */
.section { padding: 112px var(--gutter) 96px; max-width: 1440px; margin: 0 auto; }
.eyebrow { font-family: var(--mono); font-weight: 500; font-size: 12px; letter-spacing: .16em; color: var(--accent); }
.h2 { margin: 0; font-size: 48px; line-height: 1.18; letter-spacing: -1.5px; font-weight: 900; }
.lead-muted { margin: 0; font-size: 16px; line-height: 1.8; color: var(--graphite); }
.grid12 { display: grid; grid-template-columns: repeat(12, minmax(0,1fr)); gap: 40px; }
.head-row { align-items: end; }
.head-row > :first-child { grid-column: span 7; display: flex; flex-direction: column; gap: 16px; }
.head-row > :last-child { grid-column: span 5; }
.chip { font-size: 13px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--graphite); }
.line-tag { align-self: flex-start; font-family: var(--mono); font-weight: 500; font-size: 11px; padding: 5px 9px; border-radius: 6px; background: var(--accent-soft); color: var(--accent-deep); letter-spacing: .08em; }

/* ---------- 首页 ---------- */
.hero { padding: 104px var(--gutter) 88px; align-items: center; max-width: 1440px; margin: 0 auto; }
.hero-copy { grid-column: span 7; display: flex; flex-direction: column; gap: 28px; align-items: flex-start; }
.hero-kicker { display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-weight: 500; font-size: 12px; letter-spacing: .16em; color: var(--graphite); }
.hero-kicker::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }
.hero h1 { margin: 0; font-size: clamp(48px, 4.45vw, 64px); line-height: 1.12; letter-spacing: -2.5px; font-weight: 900; text-wrap: balance; }
.hero-copy p { margin: 0; font-size: 19px; line-height: 1.8; color: var(--graphite); max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.portfolio { grid-column: span 5; background: var(--dark); border-radius: 22px; padding: 28px; display: flex; flex-direction: column; gap: 14px; box-shadow: 0 30px 80px rgba(17,19,22,.18); }
.portfolio-head { display: flex; align-items: center; justify-content: space-between; font-family: var(--mono); font-size: 11px; }
.portfolio-head span:first-child { letter-spacing: .16em; color: var(--dark-muted); }
.pf-box { display: flex; flex-direction: column; gap: 10px; padding: 16px; border-radius: 14px; background: var(--dark-surface); border: 1px solid var(--dark-line); }
.pf-label { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; color: var(--dark-muted); }
.pf-label.accent { color: var(--accent-on-dark); }
.pf-apps { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
.pf-app { display: flex; flex-direction: column; gap: 4px; padding: 16px 14px; border-radius: 10px; background: var(--accent); color: #fff; }
.pf-app:hover { color: #fff; background: var(--accent-deep); }
.pf-app b { font-size: 16px; font-weight: 700; }
.pf-app small { font-size: 12px; color: var(--accent-soft); }
.pf-tools { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 8px; }
.pf-tools a { font-size: 12px; padding: 10px; border-radius: 8px; border: 1px solid var(--dark-line); color: var(--dark-text); }
.pf-tools a:hover { border-color: var(--accent-on-dark); color: #fff; }


.products { display: flex; flex-direction: column; gap: 32px; }
.app-cards { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px; }
.card { transition: border-color .16s, transform .16s; }
.card:hover { border-color: var(--ink) !important; transform: translateY(-2px); }
.app-card { display: flex; flex-direction: column; gap: 18px; padding: 36px; min-height: 300px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); color: var(--ink); }
.app-card:hover { color: var(--ink); }
.app-card .name { font-size: 32px; font-weight: 900; letter-spacing: -.8px; }
.app-card .desc { font-size: 16px; line-height: 1.75; color: var(--graphite); max-width: 460px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.app-card .chips { margin-top: auto; }
.more { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 500; color: var(--accent); }
.more svg { width: 16px; height: 16px; }
.tools-title { padding-top: 48px; }
.tool-cards { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.tool-card { display: flex; align-items: center; gap: 16px; padding: 22px 24px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); color: var(--ink); }
.tool-card:hover { color: var(--ink); }
.tool-ico { width: 44px; height: 44px; flex-shrink: 0; border-radius: 12px; background: var(--paper); color: var(--accent); display: grid; place-items: center; }
.tool-ico svg { width: 22px; height: 22px; }
.tool-card b { display: block; font-size: 16px; font-weight: 700; }
.tool-card small { font-size: 13px; color: var(--muted); }


.dark-sec { background: var(--dark); color: var(--dark-text); }
.dark-sec .inner { max-width: 1440px; margin: 0 auto; padding: 104px var(--gutter); display: flex; flex-direction: column; gap: 48px; }
.dark-sec .eyebrow { color: var(--accent-on-dark); }
.dark-sec .h2 { color: #fff; }
.dark-sec .lead-muted { color: var(--dark-muted); }
.way-cards { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.way-card { display: flex; flex-direction: column; gap: 14px; padding: 28px; min-height: 240px; border: 1px solid var(--dark-line); border-radius: 18px; background: var(--dark-surface); color: var(--dark-text); transition: border-color .16s; }
.way-card:hover { border-color: var(--accent-on-dark); color: var(--dark-text); }
.way-card .mono { font-size: 12px; color: var(--accent-on-dark); }
.way-card b { font-size: 22px; font-weight: 700; color: #fff; }
.way-card span.d { font-size: 14px; line-height: 1.75; color: var(--dark-muted); }
.way-card span.go { font-size: 14px; font-weight: 500; color: var(--accent-on-dark); margin-top: auto; }

.about { padding: 96px var(--gutter); max-width: 1440px; margin: 0 auto; }
.about-copy { grid-column: span 5; display: flex; flex-direction: column; gap: 16px; }
.about-copy h2 { margin: 0; font-size: 40px; line-height: 1.2; letter-spacing: -1px; font-weight: 900; }
.about dl { grid-column: 7 / span 6; margin: 0; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.about dl > div { display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.about dt { font-size: 14px; color: var(--muted); }
.about dd { margin: 0; font-size: 16px; }

.cta { margin: 0 var(--gutter) 96px; padding: 64px; border-radius: 28px; background: var(--accent); color: #fff; align-items: center; }
.cta-wrap { max-width: 1440px; margin: 0 auto; }
.cta-copy { grid-column: span 7; display: flex; flex-direction: column; gap: 16px; }
.cta-copy p { margin: 0; font-size: 16px; line-height: 1.8; color: var(--accent-soft); }
.cta-actions { grid-column: 9 / span 4; display: flex; flex-direction: column; gap: 12px; }
.cta .btn-white { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 56px; border: 0; border-radius: 12px; background: #fff; color: var(--ink); font-size: 16px; font-weight: 700; cursor: pointer; }
.cta .btn-white:hover { background: var(--accent-soft); color: var(--ink); }
.cta .btn-white[aria-disabled="true"] { background: rgba(255,255,255,.75); color: var(--graphite); }
.cta-qr { grid-column: 8 / span 5 !important; flex-direction: row; align-items: center; justify-content: flex-end; gap: 32px; }
.cta-pointer { display: inline-flex; align-items: center; gap: 18px; font-size: 32px; font-weight: 900; letter-spacing: -.5px; color: #fff; white-space: nowrap; }
.cta-pointer svg { width: 72px; height: 24px; flex-shrink: 0; }
.cta-qr img { width: 220px; height: 220px; padding: 12px; border-radius: 18px; background: #fff; }
.cta .btn-ghost { display: inline-flex; align-items: center; justify-content: center; min-height: 56px; border-radius: 12px; border: 1px solid rgba(255,255,255,.5); color: #fff; font-size: 15px; }
.cta .btn-ghost:hover { border-color: #fff; color: #fff; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--dark); color: var(--dark-muted); }
.site-footer .inner { max-width: 1440px; margin: 0 auto; padding: 64px var(--gutter) 40px; display: flex; flex-direction: column; gap: 48px; }
.foot-cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; font-size: 14px; }
.foot-cols > div { display: flex; flex-direction: column; gap: 12px; }
.foot-brand { display: flex; align-items: center; gap: 12px; }
.foot-logo { height: 48px; width: auto; display: block; }
.foot-brand b { font-size: 16px; color: #fff; }
.foot-cols .mono { font-size: 11px; letter-spacing: .14em; color: var(--dark-text); }
.site-footer a { color: var(--dark-muted); }
.site-footer a:hover { color: #fff; }
.foot-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 24px; border-top: 1px solid var(--dark-line); font-size: 13px; }

/* ---------- 产品简介页 ---------- */
.p-hero { padding: 72px var(--gutter) 96px; max-width: 1440px; margin: 0 auto; gap: 48px; align-items: center; }
.p-copy { grid-column: span 6; display: flex; flex-direction: column; gap: 24px; align-items: flex-start; }
.crumbs { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; color: var(--muted); }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--ink); }
.p-copy h1 { margin: 0; font-size: 64px; line-height: 1.12; letter-spacing: -2px; font-weight: 900; text-wrap: balance; }
.p-copy h1.long { font-size: 48px; letter-spacing: -1.5px; }
.p-copy .tagline { margin: 0; font-size: 22px; line-height: 1.6; font-weight: 500; max-width: 600px; }
.p-copy .chip { font-size: 14px; padding: 7px 14px; background: var(--surface); }
.entry { display: flex; flex-direction: column; gap: 14px; margin-top: 12px; padding: 24px; width: 100%; max-width: 560px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.entry > b { font-size: 15px; font-weight: 700; }
.entry-btns { display: flex; flex-wrap: wrap; gap: 10px; }
.entry-btns .btn, .entry-btns .btn-line { height: 50px; font-size: 15px; padding: 0 20px; }
.entry-btns svg { width: 16px; height: 16px; }
.entry-note { font-size: 13px; color: var(--muted); }
.p-visual { grid-column: span 6; height: 600px; border-radius: 28px; background: var(--dark); display: flex; flex-direction: column; justify-content: space-between; padding: 36px; overflow: hidden; position: relative; }
.p-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.p-visual .mono { font-size: 12px; letter-spacing: .16em; color: var(--dark-muted); position: relative; }
.p-visual.has-img .mono, .p-visual.has-img .cap { color: #fff; text-shadow: 0 1px 8px rgba(0,0,0,.45); }
.p-visual.has-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.28) 0%, rgba(0,0,0,0) 22%, rgba(0,0,0,0) 72%, rgba(0,0,0,.42) 100%); pointer-events: none; }
.p-visual .mono, .p-visual .cap, .p-visual .v-note { z-index: 1; }
/* 截图类主视觉：完整显示，不裁切 */
.p-visual.shot::after { display: none; }
.p-visual.shot img { inset: 64px 36px 56px; width: calc(100% - 72px); height: calc(100% - 120px); object-fit: contain; }
.p-visual.shot .mono, .p-visual.shot .cap { color: var(--dark-muted); text-shadow: none; }
.p-visual .v-note { position: absolute; right: 16px; bottom: 16px; font-size: 12px; padding: 4px 8px; border-radius: 6px; background: rgba(17,19,22,.55); color: #fff; }
.p-visual .ph { align-self: center; display: grid; place-items: center; gap: 18px; text-align: center; }
.p-visual .ph i { width: 96px; height: 96px; border-radius: 26px; background: var(--accent); color: #fff; display: grid; place-items: center; font-style: normal; }
.p-visual .ph i svg { width: 44px; height: 44px; }
.p-visual .ph b { font-size: 30px; font-weight: 900; color: #fff; letter-spacing: -.5px; }
.p-visual .cap { font-size: 13px; color: var(--dark-muted); position: relative; }
.consult { margin: 0 var(--gutter); padding: 56px 64px; border-radius: 24px; background: var(--dark); color: var(--dark-text); align-items: center; }
.consult-wrap { max-width: 1440px; margin: 0 auto; }
.consult-copy { grid-column: span 8; display: flex; flex-direction: column; gap: 12px; }
.consult-copy .mono { font-size: 12px; letter-spacing: .16em; color: var(--accent-on-dark); }
.consult-copy h2 { margin: 0; font-size: 36px; line-height: 1.25; letter-spacing: -1px; font-weight: 900; color: #fff; }
.consult-copy p { margin: 0; font-size: 16px; line-height: 1.8; color: var(--dark-muted); }
.consult-act { grid-column: 9 / span 4; display: flex; flex-direction: column; gap: 10px; }
.consult-act .btn { height: 56px; font-weight: 700; }
.consult-act a.sub { text-align: center; font-size: 14px; color: var(--dark-muted); }
.consult-act a.sub:hover { color: #fff; }
.others { padding: 80px var(--gutter) 96px; max-width: 1440px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }
.others > b { font-size: 18px; }
.other-cards { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.other-card { display: flex; flex-direction: column; gap: 6px; padding: 20px 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--ink); }
.other-card:hover { color: var(--ink); }
.other-card b { font-size: 16px; }
.other-card small { font-size: 13px; color: var(--muted); }

/* ---------- 列表页 ---------- */
.page-head { padding: 80px var(--gutter) 24px; max-width: 1440px; margin: 0 auto; align-items: end; }
.page-head > :first-child { grid-column: span 8; display: flex; flex-direction: column; gap: 20px; }
.page-head > :last-child { grid-column: span 4; margin: 0; font-size: 17px; line-height: 1.8; color: var(--graphite); }
.page-head h1 { margin: 0; font-size: 64px; line-height: 1.14; letter-spacing: -2px; font-weight: 900; }

/* ---------- 合作页 ---------- */
.ways-light { margin: 0 var(--gutter); }
.ways-wrap { max-width: 1440px; margin: 0 auto; }
.way-light { display: flex; flex-direction: column; gap: 14px; padding: 28px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); }
.way-light .mono { font-size: 12px; color: var(--accent); }
.way-light b { font-size: 22px; font-weight: 700; }
.way-light span.d { font-size: 14px; line-height: 1.75; color: var(--graphite); }
.way-light span.fit { font-size: 13px; color: var(--muted); padding-top: 14px; border-top: 1px solid var(--hair); margin-top: auto; }
.connect { padding: 96px var(--gutter); max-width: 1440px; margin: 0 auto; }
.connect-left { grid-column: span 5; display: flex; flex-direction: column; gap: 20px; }
.connect-left h2 { margin: 0; font-size: 40px; line-height: 1.2; letter-spacing: -1px; font-weight: 900; }
.wecom-box { display: flex; flex-direction: column; gap: 16px; padding: 28px; border-radius: 18px; background: var(--dark); color: var(--dark-text); }
.wecom-box .qr { width: 180px; height: 180px; border-radius: 12px; background: #fff; padding: 10px; }
.wecom-box .qr-pending { width: 180px; height: 180px; border-radius: 12px; border: 1px dashed var(--dark-line); display: grid; place-items: center; text-align: center; font-size: 14px; color: var(--dark-muted); padding: 16px; }
.wecom-box b { font-size: 20px; color: #fff; }
.wecom-box p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--dark-muted); }
.info-box { display: flex; flex-direction: column; gap: 6px; padding: 20px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface); }
.info-box small { font-size: 13px; color: var(--muted); }
.info-box small + * { margin-bottom: 8px; }
.lead-form { grid-column: 7 / span 6; display: flex; flex-direction: column; gap: 22px; padding: 36px; border-radius: 22px; background: var(--surface); border: 1px solid var(--line); scroll-margin-top: 100px; }
.lead-form h3 { margin: 0; font-size: 24px; font-weight: 900; }
.lead-form .sub { margin: -12px 0 0; font-size: 14px; color: var(--muted); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.fld { display: flex; flex-direction: column; gap: 8px; font-size: 14px; font-weight: 500; }
.fld em { font-style: normal; color: var(--accent); }
.fld input, .fld textarea { width: 100%; height: 50px; padding: 0 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); font: 400 15px var(--sans); color: var(--ink); }
.fld textarea { height: 96px; padding: 14px 16px; line-height: 1.7; resize: vertical; }
.fld input::placeholder, .fld textarea::placeholder { color: var(--dark-muted); }
.fld input:focus, .fld textarea:focus { outline: none; border-color: var(--ink); background: var(--surface); }
.fld.invalid input { border-color: var(--accent); }
.fld .err { font-size: 12px; font-weight: 400; color: var(--accent); min-height: 0; }
.dir { border: 0; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.dir legend { font-size: 14px; font-weight: 500; padding: 0; margin-bottom: 10px; }
.dir-opts { display: flex; flex-wrap: wrap; gap: 8px; }
.dir-opts label { position: relative; }
.dir-opts input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.dir-opts span { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 16px; border-radius: 10px; border: 1px solid var(--line); font-size: 14px; cursor: pointer; }
.dir-opts input:checked + span { background: var(--ink); color: #fff; border-color: var(--ink); }
.dir-opts input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 6px; }
.form-foot small { font-size: 13px; line-height: 1.6; color: var(--muted); }
.form-msg { padding: 14px 16px; border-radius: 10px; font-size: 14px; line-height: 1.7; }
.form-msg[hidden] { display: none; }
.form-msg.ok { background: #E7F1EA; color: #1F5132; }
.form-msg.fail { background: var(--accent-soft); color: var(--accent-deep); }

/* ---------- 联系浮层 ---------- */
.contact-modal { border: 0; padding: 0; border-radius: 22px; width: min(400px, calc(100vw - 32px)); background: var(--surface); color: var(--ink); box-shadow: 0 40px 100px rgba(17,19,22,.35); }
.contact-modal::backdrop { background: rgba(17,19,22,.5); }
.cm-inner { position: relative; padding: 32px; display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.cm-close { position: absolute; top: 10px; right: 10px; width: 44px; height: 44px; border: 0; background: transparent; border-radius: 10px; cursor: pointer; color: var(--graphite); display: grid; place-items: center; }
.cm-close:hover { background: var(--nav-hover); }
.cm-inner .mono { font-size: 11px; letter-spacing: .16em; color: var(--accent); }
.cm-inner h2 { margin: 0; font-size: 24px; font-weight: 900; }
.cm-qr { width: 220px; height: 220px; border-radius: 14px; border: 1px solid var(--line); padding: 10px; background: #fff; }
.cm-pending { width: 220px; min-height: 160px; border-radius: 14px; border: 1px dashed var(--line-strong); display: grid; place-items: center; padding: 20px; font-size: 15px; color: var(--graphite); }
.cm-cap { margin: 0; font-size: 15px; color: var(--graphite); }
.cm-form { font-size: 14px; font-weight: 500; }

/* ---------- 响应式 ---------- */
@media (max-width: 1280px) {
  .mega-inner { gap: 28px; }
  .mega-col + .mega-col { padding-left: 28px; }
  .mega-tools { grid-template-columns: 1fr; }
}
@media (max-width: 1100px) {
  :root { --gutter: 40px; }
  .brand, .nav-right { width: auto; }
  .main-nav .nav-a { padding: 0 12px; }
  .grid12 { grid-template-columns: 1fr; gap: 32px; }
  .grid12 > * { grid-column: auto !important; }
  .hero h1 { font-size: 56px; }
  .app-cards { grid-template-columns: 1fr 1fr; }
  .tool-cards, .way-cards, .other-cards { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .mega-inner { grid-template-columns: 1fr 1fr; }
  .mega-card { grid-column: 1 / -1; }
  .foot-cols { grid-template-columns: 1fr 1fr; }
  .p-visual { height: 480px; }
  .cta, .consult { padding: 44px 40px; }
  .cta-qr { justify-content: flex-start; }
}
@media (max-width: 860px) {
  .main-nav, .nav-right .lang, .nav-right .btn-sm { display: none; }
  .menu-toggle { display: grid; }
  .nav-right .btn-mini { display: inline-flex; }
}
.btn-mini { display: none; align-items: center; height: 44px; padding: 0 12px; border-radius: 8px; background: var(--accent); color: #fff; font-size: 13px; font-weight: 500; border: 0; cursor: pointer; }
.btn-mini:hover { color: #fff; background: var(--accent-deep); }
@media (max-width: 680px) {
  :root { --gutter: 20px; }
  .site-header .bar { height: 64px; padding: 0 16px 0 20px; }
  .brand-logo { height: 40px; }
  .nav-right { gap: 4px; }
  .mega { display: none !important; }
  .section { padding: 56px var(--gutter) 0; }
  .products { gap: 14px; }
  .h2 { font-size: 28px; line-height: 1.25; letter-spacing: -.8px; }
  .hero { padding: 44px var(--gutter) 32px; }
  .hero-copy { gap: 20px; }
  .hero h1 { font-size: 38px; line-height: 1.2; letter-spacing: -1.2px; }
  .hero-copy p { font-size: 15px; }
  .hero-actions { flex-direction: column; width: 100%; gap: 10px; }
  .hero-actions > * { width: 100%; height: 50px; }
  .portfolio { padding: 18px; border-radius: 18px; }
  .pf-tools { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .app-cards, .tool-cards, .way-cards, .other-cards, .form-grid { grid-template-columns: 1fr; }
  .app-card { padding: 20px; min-height: 0; gap: 10px; border-radius: 16px; }
  .app-card .name { font-size: 20px; }
  .app-card .desc { font-size: 14px; }
  .tool-card { padding: 14px 16px; min-height: 52px; }
  .dark-sec .inner { padding: 44px var(--gutter); gap: 20px; }
  .way-card { min-height: 0; padding: 18px; }
  .about { padding: 56px var(--gutter); }
  .about-copy h2 { font-size: 28px; }
  .about dl > div { grid-template-columns: 96px 1fr; }
  .cta { margin: 0 var(--gutter) 40px; padding: 28px 22px; border-radius: 20px; }
  .cta .h2 { font-size: 26px; }
  .foot-cols { grid-template-columns: 1fr; gap: 24px; }
  .foot-cols > div { gap: 0; }
  .foot-cols a, .foot-bottom a, .about dd a, .info-box a { display: inline-flex; align-items: center; min-height: 44px; }
  .site-footer .inner { padding: 36px var(--gutter) 28px; gap: 28px; }
  .page-head { padding: 44px var(--gutter) 8px; }
  .page-head h1, .p-copy h1 { font-size: 36px; letter-spacing: -1px; }
  .p-copy h1.long { font-size: 30px; letter-spacing: -.5px; }
  .p-hero { padding: 32px var(--gutter) 48px; }
  .p-copy .tagline { font-size: 18px; }
  .p-visual { height: 360px; padding: 24px; border-radius: 20px; }
  .entry { padding: 18px; }
  .entry-btns > * { flex: 1 1 100%; }
  .consult { padding: 28px 22px; border-radius: 20px; }
  .consult-copy h2 { font-size: 24px; }
  .others { padding: 48px var(--gutter) 56px; }
  .connect { padding: 56px var(--gutter); }
  .connect-left h2 { font-size: 28px; }
  .lead-form { padding: 22px; }
  .form-foot { flex-direction: column; align-items: stretch; }
  .form-foot .btn { width: 100%; }
  .cta-actions .btn-white, .cta-actions .btn-ghost { height: 50px; min-height: 50px; }
  .cta-qr { flex-direction: column; align-items: flex-start; gap: 16px; }
  .cta-pointer { font-size: 22px; gap: 10px; }
  .cta-pointer svg { width: 40px; transform: rotate(90deg); }
  .cta-qr img { width: 180px; height: 180px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }