/* ============================================================
   main.css —— 页面区块样式
   结构对齐 sem.nuoyun.tv 首页，配色为 Claude / Anthropic 暖色体系
   ============================================================ */

/* ============ 顶部导航 ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(250, 249, 245, .88);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s, background-color .25s;
}
.site-header.is-scrolled {
  background: rgba(250, 249, 245, .97);
  border-bottom-color: var(--border);
  box-shadow: 0 6px 22px rgba(20, 20, 19, .05);
}
.header-inner { height: 100%; display: flex; align-items: center; gap: 32px; }

.brand { display: inline-flex; align-items: center; gap: 9px; flex: none; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--clay);
  display: grid; place-items: center;
  color: #fff;
  box-shadow: 0 0 0 1px rgba(20, 20, 19, .06);
}
.brand-mark .icon { width: 20px; height: 20px; stroke-width: 1.9; }
.brand-name { font-size: 21px; font-weight: 700; letter-spacing: -.03em; color: var(--ink); }

.main-nav { flex: 1; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 4px;
  height: var(--header-h);
  padding: 0 12px;
  font-size: 14px;
  color: var(--body);
  white-space: nowrap;
  transition: color .2s;
}
.nav-link:hover, .nav-item:hover > .nav-link { color: var(--clay-dark); }
.nav-link .icon { width: 12px; height: 12px; transition: transform .2s; }
.nav-item:hover .nav-link .icon { transform: rotate(180deg); }
.nav-link.is-active { color: var(--clay-dark); font-weight: 600; }

.header-right { display: flex; align-items: center; gap: 18px; flex: none; }
.header-phone { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 600; color: var(--ink); }
.header-phone .icon { color: var(--clay); }
.header-login { font-size: 14px; color: var(--body); }
.header-login:hover { color: var(--clay-dark); }

/* 下拉大面板 */
.dropdown {
  position: absolute;
  top: calc(100% - 4px);
  left: 0;
  min-width: 460px;
  padding: 12px;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(20, 20, 19, .12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-item:hover .dropdown, .nav-item:focus-within .dropdown { opacity: 1; visibility: visible; transform: none; }
.dropdown--wide { min-width: 660px; left: -80px; }
.dropdown-title { font-size: 12px; font-weight: 700; letter-spacing: .08em; color: var(--stone); padding: 8px 12px 6px; }
.dropdown-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px; }
.dropdown--wide .dropdown-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.dropdown-item {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 10px 12px; border-radius: 8px;
  transition: background-color .2s;
}
.dropdown-item:hover { background: var(--oat); }
.dropdown-item .di-icon {
  width: 30px; height: 30px; flex: none;
  border-radius: 8px; background: var(--clay-wash);
  color: var(--clay-dark);
  display: grid; place-items: center;
}
.dropdown-item .di-icon .icon { width: 16px; height: 16px; }
.dropdown-item strong { display: block; font-size: 14px; font-weight: 600; color: var(--ink); }
.dropdown-item span { display: block; font-size: 12px; color: var(--stone); line-height: 1.5; }
.dropdown-foot {
  display: flex; gap: 24px; flex-wrap: wrap;
  margin-top: 10px; padding: 12px 12px 4px;
  border-top: 1px solid var(--border-soft);
  font-size: 12px; color: var(--muted);
}
.dropdown-foot b { color: var(--clay-dark); font-size: 14px; margin-left: 6px; }

.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 8px; place-items: center; color: var(--ink); }
.nav-toggle:hover { background: var(--oat); }

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h); left: 0; right: 0; bottom: 0;
  z-index: 99;
  background: var(--ivory);
  overflow-y: auto;
  padding: 20px 24px 60px;
}
.mobile-menu.open { display: block; }
.mobile-menu > a { display: block; padding: 15px 0; border-bottom: 1px solid var(--border); font-size: 16px; font-weight: 600; color: var(--ink); }
.mobile-menu .m-sub { padding: 12px 0 4px 14px; }
.mobile-menu .m-sub a { display: block; padding: 6px 0; font-size: 14px; color: var(--muted); }
.mobile-menu .btn { margin-top: 24px; width: 100%; }

/* ============ Hero ============ */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + 54px);
  padding-bottom: 74px;
  background: var(--ivory);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute;
  width: 760px; height: 760px; border-radius: 48% 52% 60% 40% / 52% 44% 56% 48%;
  right: -180px; top: -220px;
  background: var(--oat);
  z-index: 0;
}
.hero::after {
  content: ""; position: absolute;
  width: 300px; height: 300px; border-radius: 50%;
  left: -140px; bottom: -150px;
  background: var(--clay-wash);
  opacity: .7;
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1.05fr; gap: 44px; align-items: center; min-height: 430px; }

.hero-copy { min-width: 0; }
.hero-slides { position: relative; min-height: 250px; }
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0; visibility: hidden;
  transform: translateY(14px);
  transition: opacity .5s ease, transform .5s ease, visibility .5s;
}
.hero-slide.is-active { opacity: 1; visibility: visible; transform: none; position: relative; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; margin-bottom: 20px;
  background: var(--clay-wash); color: var(--clay-dark);
  border-radius: 999px; font-size: 13px; font-weight: 600;
}
.hero-slide h1 {
  font-size: clamp(30px, 3.1vw, 44px);
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -.025em;
  color: var(--ink);
}
.hero-slide h1 em { font-style: normal; color: var(--clay-dark); }
.hero-slide > p { margin-top: 18px; font-size: 17px; color: var(--muted); line-height: 1.8; }
.hero-actions { margin-top: 30px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-dots { display: flex; gap: 9px; margin-top: 34px; }
.hero-dot { width: 26px; height: 4px; border-radius: 4px; background: var(--sand-deep); transition: background-color .25s, width .25s; }
.hero-dot.is-active { width: 44px; background: var(--clay); }

/* Hero 右侧：抽象产品工作台插画（纯 CSS/SVG，保持暖色） */
.hero-art { position: relative; padding: 20px 0 20px 20px; }
.app-window {
  position: relative;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(20, 20, 19, .10), 0 0 0 6px rgba(232, 230, 220, .35);
  overflow: hidden;
}
.app-topbar { height: 42px; display: flex; align-items: center; gap: 7px; padding: 0 16px; border-bottom: 1px solid var(--border); background: var(--parchment); }
.app-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--sand-deep); }
.app-dot:first-child { background: var(--clay-soft); }
.app-topbar b { margin-left: 10px; font-size: 12px; font-weight: 600; color: var(--muted); }
.app-topbar .app-chip { margin-left: auto; font-size: 11px; color: var(--clay-dark); background: var(--clay-wash); padding: 3px 9px; border-radius: 999px; }
.app-content { display: grid; grid-template-columns: 116px 1fr; min-height: 268px; }
.app-side { border-right: 1px solid var(--border-soft); padding: 14px 10px; background: var(--parchment); }
.app-side i { display: block; height: 9px; border-radius: 5px; background: var(--sand); margin-bottom: 13px; }
.app-side i:nth-child(1) { width: 78%; background: var(--clay); }
.app-side i:nth-child(2) { width: 92%; }
.app-side i:nth-child(3) { width: 64%; }
.app-side i:nth-child(4) { width: 84%; }
.app-side i:nth-child(5) { width: 70%; }
.app-main { padding: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-content: start; }
.app-tile { background: var(--oat); border-radius: 10px; padding: 12px; min-height: 76px; }
.app-tile b { display: block; font-size: 11px; color: var(--stone); font-weight: 500; }
.app-tile strong { display: block; font-size: 21px; color: var(--ink); line-height: 1.4; }
.app-tile .mini-bars { display: flex; align-items: flex-end; gap: 4px; height: 24px; margin-top: 6px; }
.app-tile .mini-bars i { width: 9px; border-radius: 2px 2px 0 0; background: var(--clay-soft); }
.app-tile .mini-bars i:nth-child(1) { height: 40%; }
.app-tile .mini-bars i:nth-child(2) { height: 70%; background: var(--clay); }
.app-tile .mini-bars i:nth-child(3) { height: 55%; }
.app-tile .mini-bars i:nth-child(4) { height: 95%; background: var(--clay-dark); }
.app-tile .mini-bars i:nth-child(5) { height: 66%; }
.app-tile--wide { grid-column: span 2; min-height: 66px; display: flex; align-items: center; gap: 12px; }
.app-badge { width: 42px; height: 42px; border-radius: 11px; background: var(--clay); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 16px; flex: none; }
.app-tile--wide .app-line { flex: 1; }
.app-tile--wide .app-line i { display: block; height: 8px; border-radius: 4px; background: var(--sand); margin-bottom: 7px; }
.app-tile--wide .app-line i:first-child { width: 52%; background: var(--clay-soft); }
.app-tile--wide .app-line i:last-child { width: 80%; }
.app-float {
  position: absolute;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  box-shadow: var(--shadow-soft);
  font-size: 12px; font-weight: 600; color: var(--ink);
  display: flex; align-items: center; gap: 8px;
}
.app-float .icon { color: var(--clay); }
.app-float--a { top: -14px; right: -8px; }
.app-float--b { bottom: 16px; left: -26px; }
.app-float--c { right: -22px; bottom: 84px; background: var(--clay); color: #fff; border-color: var(--clay); }
.app-float--c .icon { color: #fff; }
.app-orb { position: absolute; width: 84px; height: 84px; border-radius: 50%; background: var(--clay-wash); right: -30px; top: -34px; z-index: -1; }

/* ============ 快捷入口 ============ */
.quick-entry { padding: 0 0 24px; background: var(--ivory); }
.quick-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--ivory); box-shadow: var(--shadow-soft); }
.quick-card { padding: 24px 18px; border-right: 1px solid var(--border); display: block; transition: background-color .2s, transform .2s; }
.quick-card:last-child { border-right: 0; }
.quick-card:hover { background: var(--parchment); }
.quick-card .qc-icon { width: 34px; height: 34px; border-radius: 9px; background: var(--clay-wash); color: var(--clay-dark); display: grid; place-items: center; margin-bottom: 14px; }
.quick-card .qc-icon .icon { width: 19px; height: 19px; }
.quick-card h3 { font-size: 15px; font-weight: 700; color: var(--ink); display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.quick-card h3 .icon { width: 14px; height: 14px; color: var(--stone); transition: transform .2s, color .2s; }
.quick-card:hover h3 .icon { transform: translateX(3px); color: var(--clay); }
.quick-card p { margin-top: 7px; font-size: 12.5px; color: var(--muted); line-height: 1.6; }

/* ============ 场景区块（5 组） ============ */
.scene .section-head { margin-bottom: 34px; }
.scene-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 52px; }
.scene-tab {
  display: inline-flex; align-items: center; gap: 8px;
  height: 42px; padding: 0 20px;
  border-radius: 6px;
  font-size: 14px; font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  transition: all .2s;
}
.scene-tab .icon { width: 17px; height: 17px; color: var(--clay); }
.scene-tab:hover { background: var(--oat); color: var(--ink); }
.scene-tab.is-active { background: var(--clay); color: #fff; box-shadow: 0 6px 18px rgba(217, 119, 87, .24); }
.scene-tab.is-active .icon { color: #fff; }

.scene-body { display: grid; grid-template-columns: 46% 54%; gap: 56px; align-items: center; }
.scene-copy { min-width: 0; }
.scene-title { font-size: 28px; font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.scene-sub { margin-top: 10px; font-size: 15px; color: var(--stone); line-height: 1.8; }
.scene-points { margin: 26px 0 30px; }
.scene-points li { position: relative; padding-left: 18px; margin-bottom: 13px; font-size: 14.5px; color: var(--body); line-height: 1.7; }
.scene-points li::before { content: ""; position: absolute; left: 0; top: 5px; bottom: 5px; width: 3px; border-radius: 2px; background: var(--clay); }
.scene-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.scene-body.is-switching .scene-copy, .scene-body.is-switching .scene-visual { opacity: .25; transform: translateY(6px); }
.scene-copy, .scene-visual { transition: opacity .22s, transform .22s; }

/* 右侧数据看板插画 */
.scene-visual { min-width: 0; position: relative; }
.visual-frame {
  background: var(--oat);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.visual-frame::before {
  content: ""; position: absolute; width: 210px; height: 210px; border-radius: 50%;
  background: var(--clay-wash); opacity: .55; right: -70px; top: -90px;
}
.visual-window {
  position: relative;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 14px 36px rgba(20, 20, 19, .08);
  overflow: hidden;
}
.visual-bar { height: 40px; display: flex; align-items: center; gap: 7px; padding: 0 14px; border-bottom: 1px solid var(--border-soft); background: var(--parchment); }
.visual-bar i { width: 8px; height: 8px; border-radius: 50%; background: var(--sand-deep); }
.visual-bar i:first-child { background: var(--clay-soft); }
.visual-bar b { margin-left: 8px; font-size: 12px; font-weight: 600; color: var(--body); }
.visual-bar span { margin-left: auto; font-size: 11px; color: var(--clay-dark); background: var(--clay-wash); border-radius: 999px; padding: 3px 10px; }
.visual-body { display: grid; grid-template-columns: 108px 1fr; min-height: 232px; }
.visual-sidebar { padding: 16px 12px; border-right: 1px solid var(--border-soft); background: var(--parchment); }
.visual-sidebar i { display: block; height: 8px; border-radius: 4px; background: var(--sand); margin-bottom: 14px; }
.visual-sidebar i:nth-child(1) { width: 70%; background: var(--clay); }
.visual-sidebar i:nth-child(2) { width: 90%; }
.visual-sidebar i:nth-child(3) { width: 60%; }
.visual-sidebar i:nth-child(4) { width: 82%; }
.visual-sidebar i:nth-child(5) { width: 72%; }
.visual-main { padding: 16px; }
.visual-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.visual-metric { background: var(--oat); border-radius: 8px; padding: 9px 10px; }
.visual-metric small { display: block; font-size: 10px; color: var(--stone); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.visual-metric strong { display: block; font-size: 16px; color: var(--ink); line-height: 1.5; }
.visual-chart { margin-top: 14px; background: var(--ivory); border: 1px solid var(--border-soft); border-radius: 8px; padding: 12px; }
.visual-chart > b { font-size: 11px; font-weight: 600; color: var(--muted); }
.visual-bars { display: flex; align-items: flex-end; gap: 8px; height: 62px; margin-top: 8px; }
.visual-bars i { flex: 1; border-radius: 3px 3px 0 0; background: var(--clay-soft); transition: height .4s ease; }
.visual-bars i:nth-child(even) { background: var(--sand-deep); }
.visual-bars i:nth-child(3), .visual-bars i:nth-child(6) { background: var(--clay); }
.visual-rows { margin-top: 12px; display: grid; gap: 8px; }
.visual-row { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--muted); }
.visual-row i { width: 7px; height: 7px; border-radius: 50%; background: var(--clay-soft); flex: none; }
.visual-row span { height: 7px; border-radius: 4px; background: var(--oat); flex: 1; }
.visual-row span.w60 { max-width: 60%; }
.visual-row span.w80 { max-width: 80%; }
.visual-float {
  position: absolute; right: -14px; bottom: 20px;
  background: var(--ivory); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 14px;
  box-shadow: var(--shadow-soft);
  display: flex; align-items: center; gap: 9px;
  font-size: 12px; font-weight: 600; color: var(--ink);
}
.visual-float .icon { color: var(--clay); }
.visual-dots { position: absolute; left: 8px; top: 50%; width: 54px; height: 62px; background-image: radial-gradient(var(--sand-deep) 1.4px, transparent 1.4px); background-size: 10px 10px; opacity: .8; }

/* ============ 深色解决方案 ============ */
.solutions { padding: 96px 0; background: var(--ink); color: var(--ivory); position: relative; overflow: hidden; }
.solutions::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(176, 174, 165, .16) 1px, transparent 1px); background-size: 22px 22px; opacity: .5; }
.solutions::after { content: ""; position: absolute; width: 620px; height: 620px; border-radius: 50%; background: var(--charcoal); right: -220px; bottom: -340px; }
.solutions .container { position: relative; z-index: 1; }
.solutions-body { display: grid; grid-template-columns: 210px 1fr; gap: 52px; align-items: start; }
.solutions-tabs { display: grid; gap: 6px; }
.solutions-tab {
  display: flex; align-items: center; gap: 10px;
  height: 46px; padding: 0 16px; border-radius: 6px;
  font-size: 14px; color: var(--silver); text-align: left;
  transition: background-color .2s, color .2s;
}
.solutions-tab .icon { width: 16px; height: 16px; }
.solutions-tab:hover { color: var(--ivory); background: var(--charcoal); }
.solutions-tab.is-active { background: var(--clay); color: #fff; font-weight: 600; }
.solutions-content { padding-top: 8px; }
.solutions-content h3 { font-size: 30px; font-weight: 700; color: var(--ivory); }
.solutions-content > p { margin-top: 16px; font-size: 15px; line-height: 2; color: var(--silver); max-width: 820px; }
.solution-features { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin: 40px 0 32px; }
.solution-feature { text-align: center; padding: 18px 6px; border: 1px solid var(--border-dark); border-radius: 10px; transition: border-color .2s, background-color .2s; }
.solution-feature:hover { border-color: var(--clay); background: var(--charcoal); }
.solution-feature .icon { width: 26px; height: 26px; margin: 0 auto 10px; color: var(--clay-soft); }
.solution-feature span { font-size: 12.5px; color: var(--silver); }
.solutions-actions { display: flex; gap: 12px; }

/* ============ 服务网格 ============ */
.service-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.service-card {
  background: var(--ivory); border: 1px solid var(--border); border-radius: 10px;
  padding: 26px 10px 20px; text-align: center;
  box-shadow: var(--ring);
  transition: transform .2s, box-shadow .2s;
}
.service-card:hover { transform: translateY(-3px); box-shadow: var(--ring-hover); }
.service-card .sc-icon { width: 42px; height: 42px; margin: 0 auto 16px; border-radius: 12px; background: var(--clay-wash); color: var(--clay-dark); display: grid; place-items: center; }
.service-card .sc-icon .icon { width: 22px; height: 22px; }
.service-card span { font-size: 13.5px; color: var(--body); font-weight: 600; }

/* ============ 客户案例 ============ */
.case-quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quote-card { position: relative; background: var(--parchment); border: 1px solid var(--border); border-radius: 12px; padding: 26px 24px 28px; min-height: 226px; }
.quote-card::after { content: "\201D"; position: absolute; right: 20px; top: 6px; font-family: var(--serif); font-size: 72px; line-height: 1; color: var(--sand-deep); }
.quote-logo { height: 34px; display: flex; align-items: center; font-size: 15px; font-weight: 700; color: var(--charcoal); letter-spacing: .02em; margin-bottom: 20px; }
.quote-logo i { width: 22px; height: 22px; border-radius: 50%; background: var(--clay); display: inline-block; margin-right: 9px; flex: none; }
.quote-card h3 { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.quote-card p { font-size: 13.5px; line-height: 1.9; color: var(--muted); }

.case-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin: 44px 0 22px; }
.case-tab { padding: 8px 20px; border-radius: 6px; font-size: 14px; color: var(--muted); transition: all .2s; }
.case-tab:hover { background: var(--oat); color: var(--ink); }
.case-tab.is-active { background: var(--clay); color: #fff; font-weight: 600; }
.logo-wall { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; border: 1px solid var(--border); border-radius: 12px; padding: 12px; background: var(--ivory); }
.logo-cell { height: 56px; display: grid; place-items: center; text-align: center; font-size: 13px; font-weight: 700; color: var(--charcoal); border: 1px solid var(--border-soft); border-radius: 7px; padding: 0 6px; transition: background-color .2s, border-color .2s; }
.logo-cell:hover { background: var(--parchment); border-color: var(--sand-deep); }
.logo-cell small { display: block; font-size: 9px; font-weight: 500; letter-spacing: .08em; color: var(--stone); }
.case-more { text-align: center; margin-top: 30px; }

/* ============ 新闻动态 ============ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.news-card { display: block; background: var(--ivory); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: transform .2s, box-shadow .2s; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--ring-hover); }
.news-thumb { height: 194px; padding: 22px; position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.news-thumb--1 { background: var(--oat); }
.news-thumb--2 { background: var(--ink); }
.news-thumb--3 { background: var(--clay-wash); }
.news-thumb::after { content: ""; position: absolute; width: 180px; height: 180px; border-radius: 50%; right: -50px; bottom: -90px; background: rgba(217, 119, 87, .16); }
.news-thumb--2::after { background: rgba(250, 249, 245, .08); }
.news-thumb small { font-size: 11px; letter-spacing: .08em; color: var(--clay-dark); font-weight: 600; }
.news-thumb--2 small { color: var(--clay-soft); }
.news-thumb b { font-size: 22px; line-height: 1.45; color: var(--ink); font-weight: 700; margin-top: 8px; position: relative; z-index: 1; }
.news-thumb--2 b { color: var(--ivory); }
.news-thumb em { font-style: normal; font-size: 12px; color: var(--muted); margin-top: 10px; position: relative; z-index: 1; }
.news-thumb--2 em { color: var(--silver); }
.news-thumb .play { position: absolute; left: 22px; top: 22px; width: 30px; height: 30px; border-radius: 50%; background: var(--clay); color: #fff; display: grid; place-items: center; }
.news-thumb .play .icon { width: 14px; height: 14px; }
.news-info { padding: 20px 22px 26px; }
.news-date { font-size: 12.5px; color: var(--stone); }
.news-info h3 { margin-top: 9px; font-size: 15.5px; font-weight: 600; line-height: 1.7; color: var(--ink); min-height: 54px; }
.news-card:hover .news-info h3 { color: var(--clay-dark); }
.news-more { text-align: center; margin-top: 34px; }

/* ============ 底部 CTA ============ */
.cta-band { padding: 96px 0 110px; background: var(--ivory); position: relative; overflow: hidden; text-align: center; }
.cta-band::before { content: ""; position: absolute; width: 130%; height: 420px; left: -15%; bottom: -330px; border-radius: 50% 50% 0 0; background: var(--oat); }
.cta-band::after { content: ""; position: absolute; width: 130%; height: 380px; left: -15%; bottom: -340px; border-radius: 50% 50% 0 0; background: var(--clay-wash); opacity: .65; }
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 { font-size: clamp(28px, 3vw, 40px); font-weight: 700; color: var(--clay-dark); letter-spacing: -.02em; }
.cta-band > .container > p { margin-top: 16px; font-size: 16px; color: var(--muted); }
.cta-panel { margin-top: 42px; display: inline-flex; align-items: center; gap: 36px; padding: 26px 34px; background: var(--ivory); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow-soft); text-align: left; }
.qr-box { width: 132px; height: 132px; padding: 8px; border: 2px solid var(--clay); border-radius: 12px; background: #fff; flex: none; }
.qr-box svg, .qr-box img { width: 100%; height: 100%; display: block; object-fit: contain; border-radius: 4px; }
.cta-panel h3 { font-size: 22px; font-weight: 700; color: var(--ink); }
.cta-panel p { font-size: 14px; color: var(--muted); margin-top: 10px; }
.cta-panel .btn { margin-top: 16px; }

/* ============ 页脚 ============ */
.site-footer { background: var(--ink); color: var(--silver); padding: 0 0 32px; }
.footer-promises { display: flex; justify-content: center; flex-wrap: wrap; gap: 56px; padding: 26px 0; border-bottom: 1px solid var(--border-dark); }
.footer-promise { display: inline-flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--silver); }
.footer-promise .icon { color: var(--clay-soft); }
.footer-main { display: grid; grid-template-columns: 1.35fr 3fr 1fr; gap: 44px; padding: 46px 0 34px; }
.footer-logo { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 22px; }
.footer-logo .brand-name { color: var(--ivory); }
.footer-brand dl { margin: 0 0 16px; }
.footer-brand dt { font-size: 12px; color: var(--stone); margin-bottom: 3px; }
.footer-brand dd { margin: 0; font-size: 13.5px; color: var(--silver); line-height: 1.7; }
.footer-cols { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.footer-col h4 { font-size: 14px; font-weight: 600; color: var(--ivory); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 12.5px; color: var(--silver); padding: 4px 0; transition: color .2s; }
.footer-col a:hover { color: var(--clay-soft); }
.footer-qr { text-align: center; }
.footer-qr .qr-box { width: 118px; height: 118px; margin: 0 auto 12px; border-color: var(--sand-deep); }
.footer-qr h4 { font-size: 13px; color: var(--ivory); margin-bottom: 14px; }
.footer-qr p { font-size: 11px; color: var(--stone); line-height: 1.9; }
.footer-qr p b { display: block; color: var(--silver); font-weight: 500; }

/* ============ 右侧浮动工具条 ============ */
.side-bar { position: fixed; right: 14px; top: 50%; transform: translateY(-50%); z-index: 90; display: grid; gap: 6px; }
.side-item { width: 58px; padding: 10px 4px; background: var(--ivory); border: 1px solid var(--border); border-radius: 10px; display: grid; justify-items: center; gap: 4px; font-size: 11px; color: var(--muted); box-shadow: var(--ring); transition: all .2s; }
.side-item .icon { width: 19px; height: 19px; color: var(--clay); }
.side-item:hover { background: var(--clay); color: #fff; border-color: var(--clay); }
.side-item:hover .icon { color: #fff; }
.side-item--top { opacity: 0; pointer-events: none; transition: opacity .25s; }
.side-item--top.show { opacity: 1; pointer-events: auto; }

/* ============ 底部留资条 ============ */
.lead-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 95; background: var(--parchment); border-top: 1px solid var(--border); box-shadow: 0 -8px 28px rgba(20, 20, 19, .07); transition: transform .3s ease; }
.lead-bar.is-hidden { transform: translateY(110%); }
.lead-inner { display: flex; align-items: center; gap: 28px; padding-top: 16px; padding-bottom: 16px; }
.lead-copy { flex: none; min-width: 0; }
.lead-copy h3 { font-size: 17px; font-weight: 700; color: var(--clay-dark); }
.lead-copy p { font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.lead-form { display: flex; gap: 10px; flex: 1; justify-content: flex-end; }
.lead-form .field { max-width: 260px; height: 42px; background: var(--ivory); }
.lead-form .btn { height: 42px; }
.lead-close { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; color: var(--stone); flex: none; }
.lead-close:hover { background: var(--sand); color: var(--ink); }
.lead-reopen { position: fixed; right: 16px; bottom: 16px; z-index: 94; display: none; }
.lead-reopen.show { display: block; }

/* 按需求隐藏底部留资条及配套浮标（结构保留，删除本行即可恢复） */
.lead-bar, .lead-reopen { display: none !important; }

/* ============ 响应式 ============ */
@media (max-width: 1180px) {
  .header-inner { gap: 18px; }
  .nav-link { padding: 0 8px; font-size: 13px; }
  .header-right { gap: 12px; }
  .header-phone span { display: none; }
  .quick-grid { grid-template-columns: repeat(3, 1fr); }
  .quick-card:nth-child(3) { border-right: 0; }
  .quick-card:nth-child(-n+3) { border-bottom: 1px solid var(--border); }
  .solution-features { grid-template-columns: repeat(3, 1fr); }
  .service-grid { grid-template-columns: repeat(4, 1fr); }
  .logo-wall { grid-template-columns: repeat(5, 1fr); }
  .footer-main { grid-template-columns: 1fr 2fr; }
  .footer-qr { display: none; }
}

@media (max-width: 960px) {
  .section { padding: 68px 0; }
  .section-head h2 { font-size: 30px; }
  .main-nav, .header-right .header-login, .header-phone { display: none; }
  .nav-toggle { display: grid; margin-left: auto; }
  .hero { padding-top: calc(var(--header-h) + 32px); }
  .hero-inner { grid-template-columns: 1fr; gap: 42px; }
  .hero-slides { min-height: 230px; }
  .hero-art { max-width: 560px; margin: 0 auto; }
  .scene-body { grid-template-columns: 1fr; gap: 36px; }
  .scene-visual { order: 2; max-width: 620px; }
  .scene-tabs { margin-bottom: 36px; }
  .solutions-body { grid-template-columns: 1fr; gap: 28px; }
  .solutions-tabs { grid-template-columns: repeat(4, 1fr); display: grid; }
  .case-quotes { grid-template-columns: 1fr; }
  .quote-card { min-height: 0; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .news-card:last-child { display: none; }
  .lead-copy p { display: none; }
  .lead-form .field { max-width: 200px; }
  .footer-cols { grid-template-columns: repeat(3, 1fr); row-gap: 28px; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 25px; }
  .section-head p { font-size: 14px; }
  .brand-name { font-size: 19px; }
  .hero-slide h1 { font-size: 28px; }
  .hero-slide > p { font-size: 14px; }
  .hero-slides { min-height: 250px; }
  .hero-art { padding-left: 0; }
  .app-content { grid-template-columns: 84px 1fr; }
  .app-float--b { left: -6px; }
  .app-float--c { right: -4px; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-card { border-bottom: 1px solid var(--border); }
  .quick-card:nth-child(2n) { border-right: 0; }
  .quick-card:nth-child(3) { border-right: 1px solid var(--border); }
  .scene-tab { height: 38px; padding: 0 13px; font-size: 13px; }
  .scene-title { font-size: 23px; }
  .visual-frame { padding: 14px; }
  .visual-body { grid-template-columns: 76px 1fr; }
  .visual-float { right: 0; bottom: 8px; }
  .solutions-tabs { grid-template-columns: repeat(2, 1fr); }
  .solutions-content h3 { font-size: 24px; }
  .solution-features { grid-template-columns: repeat(3, 1fr); }
  .service-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .service-card { padding: 18px 4px 14px; }
  .service-card span { font-size: 12px; }
  .logo-wall { grid-template-columns: repeat(3, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .news-card:last-child { display: block; }
  .cta-panel { flex-direction: column; gap: 20px; padding: 22px; text-align: center; }
  .footer-promises { gap: 18px 26px; justify-content: flex-start; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .side-bar { right: 8px; }
  .side-item { width: 46px; font-size: 10px; }
  .lead-inner { flex-wrap: wrap; gap: 10px; }
  .lead-copy { width: 100%; }
  .lead-copy h3 { font-size: 15px; }
  .lead-form { flex-wrap: wrap; }
  .lead-form .field { max-width: none; flex: 1 1 45%; }
  .lead-form .btn { flex: 1 1 100%; }
  .lead-close { position: absolute; right: 10px; top: 8px; }
}

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