/* ============================================================
   英哲数科 · 企业官网  v2.1
   配色方案 A · 工业深蓝
   设计语言：工业制造感 —— 工程图纸网格 / DIN 数字 / 合同质感
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  --c-primary: #0E3A66;
  --c-primary-light: #1B5A94;
  --c-primary-deep: #0A2B4C;
  --c-accent: #00A3B4;
  --c-accent-soft: rgba(0, 163, 180, .10);
  --c-emphasis: #E8A33D;
  --c-bg: #FFFFFF;
  --c-bg-alt: #F4F7FA;
  --c-text: #1F2937;
  --c-text-2: #6B7280;
  --c-line: #E5E9F0;
  --c-white: #FFFFFF;

  --font-num: "Bahnschrift", "DIN Alternate", "Franklin Gothic Medium", "Arial Narrow", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans SC", sans-serif;

  --shadow-sm: 0 1px 3px rgba(14, 58, 102, .08);
  --shadow-md: 0 6px 24px -8px rgba(14, 58, 102, .16);
  --shadow-lg: 0 16px 48px -12px rgba(14, 58, 102, .22);
  --radius: 10px;
  --radius-lg: 16px;
  --container: 1200px;
  --ease: cubic-bezier(.22, .8, .32, 1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
strong, b { font-weight: 700; color: var(--c-primary); }
::selection { background: rgba(0, 163, 180, .25); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* 数字排版：工业风数字字体 */
.num, .stat-num, .result-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}

/* ---------- 无障碍 ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; border-radius: 4px; }

/* ============================================================
   顶部信息栏（第一行）
   ============================================================ */
.topbar {
  background: var(--c-primary);
  color: rgba(255, 255, 255, .92);
  font-size: 13px;
  position: relative;
  z-index: 60;
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 46px; gap: 16px; padding: 6px 0;
}
.topbar-brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.topbar-logo img, .topbar-logo svg { height: 26px; width: auto; }
.topbar-name { font-weight: 600; letter-spacing: .04em; white-space: nowrap; }
.topbar-slogan {
  color: rgba(255, 255, 255, .55);
  border-left: 1px solid rgba(255, 255, 255, .22);
  padding-left: 12px; margin-left: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-actions { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.topbar-phone {
  display: inline-flex; align-items: center; gap: 7px;
  color: #fff; font-family: var(--font-num); font-size: 15px;
  letter-spacing: .04em; transition: color .2s;
}
.topbar-phone:hover { color: var(--c-emphasis); }
.topbar-phone svg { width: 14px; height: 14px; opacity: .8; }
.topbar-wechat { position: relative; display: inline-flex; align-items: center; gap: 6px; color: rgba(255,255,255,.85); cursor: pointer; }
.topbar-wechat:hover { color: #fff; }
.topbar-wechat svg { width: 15px; height: 15px; }
.wechat-pop {
  position: absolute; top: calc(100% + 10px); right: 0;
  width: 168px; background: #fff; border-radius: 8px;
  box-shadow: var(--shadow-lg); padding: 10px;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: all .25s var(--ease); z-index: 100;
}
.wechat-pop::before {
  content: ""; position: absolute; top: -5px; right: 22px;
  width: 10px; height: 10px; background: #fff; transform: rotate(45deg);
}
.topbar-wechat:hover .wechat-pop,
.topbar-wechat:focus-within .wechat-pop { opacity: 1; visibility: visible; transform: translateY(0); }
.wechat-pop img { width: 100%; aspect-ratio: 1; border-radius: 4px; background: var(--c-bg-alt); }
.wechat-pop p { font-size: 12px; color: var(--c-text-2); text-align: center; margin-top: 8px; line-height: 1.5; }

/* ============================================================
   主导航（第二行 · 单独通栏）
   ============================================================ */
.mainnav {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-line);
  position: sticky; top: 0; z-index: 50;
  transition: box-shadow .3s var(--ease);
}
.mainnav.is-scrolled { box-shadow: 0 4px 20px -6px rgba(14, 58, 102, .14); }
.mainnav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.mainnav-links { display: flex; align-items: center; gap: 6px; height: 100%; }
.mainnav-links > li { position: relative; height: 100%; display: flex; }
.mainnav-links a.nav-item {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 0 14px; font-size: 15px; font-weight: 500;
  color: var(--c-text); position: relative; height: 100%;
  transition: color .2s;
}
.mainnav-links a.nav-item::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 0;
  height: 3px; background: var(--c-accent); border-radius: 3px 3px 0 0;
  transform: scaleX(0); transition: transform .25s var(--ease);
}
.mainnav-links a.nav-item:hover, .mainnav-links a.nav-item.active { color: var(--c-primary); }
.mainnav-links a.nav-item:hover::after, .mainnav-links a.nav-item.active::after { transform: scaleX(1); }
.mainnav-links a.nav-item .caret { transition: transform .25s; }
.mainnav-links li:hover .caret { transform: rotate(180deg); }

/* 下拉菜单 */
.dropdown-panel {
  position: absolute; top: 100%; left: 0;
  min-width: 208px; background: #fff;
  border: 1px solid var(--c-line); border-top: 3px solid var(--c-primary);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .25s var(--ease);
}
.mainnav-links li:hover > .dropdown-panel,
.mainnav-links li:focus-within > .dropdown-panel { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-panel a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 8px; font-size: 14px;
  transition: background .15s, color .15s;
}
.dropdown-panel a:hover { background: var(--c-accent-soft); color: var(--c-primary); }
.dropdown-panel a svg { width: 16px; height: 16px; color: var(--c-accent); flex-shrink: 0; }
.dropdown-panel .dd-note { display: block; font-size: 12px; color: var(--c-text-2); margin-top: 1px; }

.nav-cta { flex-shrink: 0; }

/* 移动端汉堡 */
.nav-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 22px; height: 2px; background: var(--c-primary);
  position: relative; transition: all .25s var(--ease); content: "";
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { top: 0; transform: rotate(45deg); }
body.nav-open .nav-toggle span::after { top: 0; transform: rotate(-45deg); }
.mobile-drawer {
  display: none; position: fixed; inset: 0; z-index: 45;
  background: rgba(10, 43, 76, .4); backdrop-filter: blur(2px);
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
body.nav-open .mobile-drawer { opacity: 1; pointer-events: auto; }
.mobile-drawer-panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(320px, 84vw);
  background: #fff; padding: 88px 28px 32px; overflow-y: auto;
  transform: translateX(100%); transition: transform .3s var(--ease);
}
body.nav-open .mobile-drawer-panel { transform: translateX(0); }
.mobile-drawer-panel a { display: block; padding: 14px 4px; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--c-line); }
.mobile-drawer-panel a.sub { padding-left: 16px; font-size: 14px; color: var(--c-text-2); border-bottom: none; padding-top: 8px; padding-bottom: 8px; }
.mobile-drawer-panel .btn { margin-top: 24px; width: 100%; }

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 8px;
  font-size: 15px; font-weight: 600; letter-spacing: .02em;
  transition: all .22s var(--ease); white-space: nowrap;
  min-height: 44px;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--c-primary); color: #fff; box-shadow: 0 4px 14px -4px rgba(14, 58, 102, .45); }
.btn-primary:hover { background: var(--c-primary-light); transform: translateY(-2px); box-shadow: 0 8px 22px -6px rgba(14, 58, 102, .5); }
.btn-accent { background: var(--c-emphasis); color: #fff; box-shadow: 0 4px 14px -4px rgba(232, 163, 61, .5); }
.btn-accent:hover { background: #D8922B; transform: translateY(-2px); }
.btn-outline { border: 1.5px solid var(--c-primary); color: var(--c-primary); background: transparent; }
.btn-outline:hover { background: var(--c-primary); color: #fff; transform: translateY(-2px); }
.btn-outline-light { border: 1.5px solid rgba(255,255,255,.5); color: #fff; }
.btn-outline-light:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-lg { padding: 16px 36px; font-size: 16px; border-radius: 10px; }
.btn-sm { padding: 9px 18px; font-size: 14px; min-height: 38px; }

/* ============================================================
   Hero 首屏
   ============================================================ */
.hero {
  position: relative; overflow: hidden;
  background:
    linear-gradient(180deg, rgba(244,247,250,0) 0%, rgba(244,247,250,.9) 100%),
    linear-gradient(90deg, rgba(14,58,102,.035) 1px, transparent 1px),
    linear-gradient(rgba(14,58,102,.035) 1px, transparent 1px),
    #fff;
  background-size: auto, 48px 48px, 48px 48px, auto;
}
.hero::after {
  content: ""; position: absolute; top: -220px; right: -180px;
  width: 640px; height: 640px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,163,180,.10) 0%, transparent 65%);
  pointer-events: none;
}
.hero-inner {
  display: grid; grid-template-columns: 1.08fr .92fr;
  gap: 48px; align-items: center;
  padding: 84px 0 96px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--c-accent-soft); color: var(--c-primary);
  border: 1px solid rgba(0,163,180,.28);
  font-size: 13px; font-weight: 600; letter-spacing: .06em;
  padding: 6px 14px; border-radius: 100px; margin-bottom: 22px;
}
.hero-badge::before { content: ""; width: 7px; height: 7px; background: var(--c-accent); border-radius: 2px; }
.hero h1 {
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.22; font-weight: 800; color: var(--c-primary);
  letter-spacing: .015em; margin-bottom: 8px;
}
.hero h1 .accent-line { color: var(--c-accent); }
.hero-sub {
  font-size: clamp(15px, 1.4vw, 18px); color: var(--c-text-2);
  max-width: 34em; margin-top: 18px; line-height: 1.9;
}
.hero-sub strong { color: var(--c-text); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; }
.hero-proof li {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--c-text-2);
}
.hero-proof li svg { width: 15px; height: 15px; color: var(--c-accent); flex-shrink: 0; }

/* Hero 右侧：产品界面模型 */
.hero-visual { position: relative; min-height: 420px; }
.mock-phone {
  position: relative; width: min(280px, 82%); margin-left: 8%;
  background: #fff; border: 1px solid var(--c-line); border-radius: 24px;
  box-shadow: var(--shadow-lg); padding: 14px; z-index: 2;
  animation: floatY 6s ease-in-out infinite;
}
.mock-phone-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 2px 6px 12px; border-bottom: 1px solid var(--c-line); margin-bottom: 10px;
}
.mock-phone-head .t { font-size: 13px; font-weight: 700; color: var(--c-primary); }
.mock-phone-head .s { font-size: 10px; color: var(--c-text-2); }
.mock-row { display: flex; justify-content: space-between; align-items: center; padding: 9px 6px; border-bottom: 1px dashed var(--c-line); font-size: 12px; }
.mock-row .k { color: var(--c-text-2); }
.mock-row .v { font-weight: 600; color: var(--c-text); }
.mock-row .v.up { color: var(--c-primary); }
.mock-total {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-top: 12px; padding: 12px 10px; border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  color: #fff; font-size: 12px;
}
.mock-total .num { font-size: 22px; font-weight: 700; color: #fff; }
.mock-status { display: flex; gap: 6px; margin-top: 10px; }
.mock-chip { flex: 1; text-align: center; font-size: 10px; padding: 5px 2px; border-radius: 6px; background: var(--c-bg-alt); color: var(--c-text-2); }
.mock-chip.ok { background: rgba(0,163,180,.12); color: #007A88; font-weight: 600; }

.mock-chat {
  position: absolute; right: 0; bottom: 6%; width: min(300px, 78%);
  background: #fff; border: 1px solid var(--c-line); border-radius: 16px;
  box-shadow: var(--shadow-lg); padding: 16px; z-index: 3;
  animation: floatY 6s ease-in-out 1.2s infinite;
}
.mock-chat-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.mock-chat-head .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 0 4px rgba(0,163,180,.15); }
.mock-chat-head .t { font-size: 12px; font-weight: 700; color: var(--c-primary); }
.mock-chat .q, .mock-chat .a { font-size: 12px; line-height: 1.7; border-radius: 10px; padding: 9px 12px; margin-bottom: 8px; }
.mock-chat .q { background: var(--c-bg-alt); color: var(--c-text); }
.mock-chat .a { background: var(--c-accent-soft); color: var(--c-primary); }
.mock-chat .a .src { display: block; margin-top: 4px; font-size: 10px; color: var(--c-text-2); }
.mock-chat .typing { display: inline-flex; gap: 4px; padding: 2px 0; }
.mock-chat .typing i { width: 5px; height: 5px; border-radius: 50%; background: var(--c-accent); animation: blink 1.2s infinite; }
.mock-chat .typing i:nth-child(2) { animation-delay: .2s; }
.mock-chat .typing i:nth-child(3) { animation-delay: .4s; }

@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

/* ============================================================
   通用 Section
   ============================================================ */
.section { padding: 88px 0; }
.section.alt { background: var(--c-bg-alt); }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .14em;
  color: var(--c-accent); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 18px; height: 2px; background: var(--c-accent); }
.section-head.center .eyebrow::after { content: ""; width: 18px; height: 2px; background: var(--c-accent); }
.section-head h2 {
  font-size: clamp(26px, 3vw, 36px); font-weight: 800;
  color: var(--c-primary); line-height: 1.3; letter-spacing: .01em;
}
.section-head .lede { margin-top: 14px; color: var(--c-text-2); font-size: 16px; line-height: 1.9; }
.section-more { margin-top: 36px; text-align: center; }
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--c-primary); font-weight: 600; font-size: 15px;
  border-bottom: 2px solid transparent; transition: all .2s;
}
.link-arrow svg { width: 15px; height: 15px; transition: transform .2s; }
.link-arrow:hover { color: var(--c-accent); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ============================================================
   症状入口
   ============================================================ */
.symptom-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.symptom-btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 14px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 24px 20px 20px; text-align: left; width: 100%;
  transition: all .25s var(--ease); position: relative; overflow: hidden;
}
.symptom-btn::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: 100%;
  background: var(--c-accent); transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.symptom-btn:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(0,163,180,.4); }
.symptom-btn:hover::after, .symptom-btn.active::after { transform: scaleX(1); }
.symptom-btn.active { border-color: var(--c-accent); box-shadow: 0 0 0 1px var(--c-accent), var(--shadow-md); }
.symptom-icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-accent-soft); color: var(--c-accent);
  transition: all .25s;
}
.symptom-btn:hover .symptom-icon, .symptom-btn.active .symptom-icon { background: var(--c-accent); color: #fff; }
.symptom-icon svg { width: 22px; height: 22px; }
.symptom-btn .name { font-size: 17px; font-weight: 700; color: var(--c-primary); }
.symptom-btn .desc { font-size: 12.5px; color: var(--c-text-2); line-height: 1.6; }
.symptom-result-tip {
  margin-top: 22px; padding: 14px 20px; border-radius: 8px;
  background: var(--c-accent-soft); border: 1px dashed rgba(0,163,180,.35);
  font-size: 14px; color: var(--c-primary);
  display: none; align-items: center; gap: 10px;
}
.symptom-result-tip.show { display: flex; }
.symptom-result-tip svg { width: 17px; height: 17px; color: var(--c-accent); flex-shrink: 0; }

/* ============================================================
   数据信任条
   ============================================================ */
.trustband { background: linear-gradient(160deg, var(--c-primary-deep) 0%, var(--c-primary) 70%, #123E6E 100%); color: #fff; position: relative; overflow: hidden; }
.trustband::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
}
.trust-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 64px 0 20px; position: relative; }
.trust-stat { text-align: center; position: relative; }
.trust-stat + .trust-stat::before {
  content: ""; position: absolute; left: -12px; top: 12%; bottom: 12%;
  width: 1px; background: rgba(255,255,255,.14);
}
.stat-num { font-size: clamp(38px, 4vw, 52px); font-weight: 700; line-height: 1.1; color: #fff; }
.stat-num .unit { font-size: .45em; margin-left: 3px; color: rgba(255,255,255,.75); font-weight: 600; }
.trust-stat .label { margin-top: 8px; font-size: 14px; color: rgba(255,255,255,.82); }
.trust-note {
  position: relative; text-align: center; padding: 22px 0 40px;
  max-width: 880px; margin: 0 auto; line-height: 2.05;
  font-size: 14.5px; color: rgba(255,255,255,.62); letter-spacing: .02em;
}
.trust-note b { color: var(--c-emphasis); font-weight: 600; }

/* ============================================================
   场景卡片
   ============================================================ */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.scene-card {
  display: flex; flex-direction: column; gap: 14px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 28px 26px 24px; position: relative;
  transition: all .28s var(--ease); overflow: hidden;
}
.scene-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--c-accent); transform: scaleY(0); transform-origin: top;
  transition: transform .3s var(--ease);
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.scene-card:hover::before { transform: scaleY(1); }
.scene-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.tag { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 100px; }
.tag-zero { background: rgba(0,163,180,.12); color: #007A88; }
.tag-zero::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); }
.tag-symptom { background: var(--c-bg-alt); color: var(--c-text-2); border: 1px solid var(--c-line); }
.scene-card h3 { font-size: 19px; font-weight: 700; color: var(--c-primary); line-height: 1.45; }
.result-num { font-size: clamp(24px, 2.2vw, 30px); font-weight: 700; color: var(--c-accent); line-height: 1.2; }
.scene-card .desc { font-size: 14px; color: var(--c-text-2); line-height: 1.8; flex: 1; }
.scene-card .foot {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 16px; border-top: 1px solid var(--c-line);
  font-size: 13px; color: var(--c-text-2);
}
.scene-card .foot .go { display: inline-flex; align-items: center; gap: 5px; color: var(--c-primary); font-weight: 600; transition: gap .2s; }
.scene-card:hover .foot .go { gap: 9px; color: var(--c-accent); }
.scene-card .foot .go svg { width: 14px; height: 14px; }
.scene-empty { padding: 48px 0; text-align: center; color: var(--c-text-2); display: none; grid-column: 1 / -1; }

/* ============================================================
   三大业务 · 结构图
   ============================================================ */
.layers { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; }
.layer {
  width: 100%; border-radius: var(--radius-lg); padding: 30px 36px;
  position: relative; transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.layer:hover { transform: translateY(-4px); }
.layer + .layer-arrow { margin: 6px 0; }
.layer-arrow { color: rgba(14,58,102,.35); }
.layer-arrow svg { width: 26px; height: 26px; margin: 0 auto; }
.layer-ai { background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%); color: #fff; box-shadow: var(--shadow-md); }
.layer-ai h3, .layer-ai .layer-tag { color: #fff; }
.layer-ai p { color: rgba(255,255,255,.82); }
.layer-ai .layer-points span { background: rgba(255,255,255,.12); color: #fff; }
.layer-ecp { background: linear-gradient(135deg, #00808F 0%, var(--c-accent) 100%); color: #fff; box-shadow: var(--shadow-md); }
.layer-ecp h3, .layer-ecp .layer-tag { color: #fff; }
.layer-ecp p { color: rgba(255,255,255,.88); }
.layer-ecp .layer-points span { background: rgba(255,255,255,.16); color: #fff; }
.layer-base { background: #fff; border: 1px solid var(--c-line); }
.layer-head { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 6px; }
.layer h3 { font-size: 21px; font-weight: 800; letter-spacing: .02em; }
.layer-tag { font-family: var(--font-num); font-size: 12px; letter-spacing: .18em; opacity: .75; }
.layer p { margin-top: 8px; font-size: 14.5px; }
.layer-points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.layer-points span { font-size: 12.5px; padding: 4px 12px; border-radius: 100px; background: var(--c-bg-alt); color: var(--c-text); }
.erp-answer {
  max-width: 780px; margin: 40px auto 0;
  background: #fff; border-left: 4px solid var(--c-emphasis);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 26px 32px; box-shadow: var(--shadow-sm);
  font-size: 15.5px; line-height: 2;
}

/* ---- 双增长飞轮（内联嵌入） ---- */
.flywheel-wrap {
  margin: 52px auto 0; max-width: 980px;
  border-radius: 20px; overflow: hidden;
  border: 1px solid rgba(14,58,102,.18);
  box-shadow: 0 24px 64px rgba(14,58,102,.18);
  background: #02040A;
}
.flywheel-legend {
  display: flex; flex-direction: column; gap: 9px;
  padding: 18px 26px 20px;
  background: linear-gradient(180deg, #050B16, #0A1628);
  border-top: 1px solid rgba(255,255,255,.08);
}
.flywheel-legend span {
  display: flex; align-items: baseline; gap: 10px;
  font-size: 13px; line-height: 1.7; color: rgba(255,255,255,.72);
}
.flywheel-legend b { color: rgba(255,255,255,.92); font-weight: 600; white-space: nowrap; }
.flywheel-legend i {
  flex: none; width: 9px; height: 9px; border-radius: 50%;
  transform: translateY(0.5px);
  box-shadow: 0 0 8px currentColor;
}
@media (max-width: 640px) {
  .flywheel-wrap { margin-top: 36px; border-radius: 14px; }
  .flywheel-legend span { flex-direction: column; gap: 3px; }
  .flywheel-legend b { white-space: normal; }
}
.erp-answer .q { display: block; font-weight: 700; color: var(--c-primary); font-size: 16.5px; margin-bottom: 8px; }
.erp-answer .q svg { width: 17px; height: 17px; vertical-align: -3px; margin-right: 6px; color: var(--c-emphasis); }

/* ============================================================
   四懂
   ============================================================ */
.know-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.know-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 30px 26px; transition: all .28s var(--ease);
}
.know-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(0,163,180,.35); }
.know-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--c-accent-soft); color: var(--c-accent); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.know-icon svg { width: 24px; height: 24px; }
.know-card h3 { font-size: 18px; font-weight: 700; color: var(--c-primary); margin-bottom: 8px; }
.know-card p { font-size: 14px; color: var(--c-text-2); line-height: 1.85; }

/* ============================================================
   三条铁规矩 · 合同样式
   ============================================================ */
.contract-wrap { max-width: 820px; margin: 0 auto; }
.contract {
  background: #fff; border: 2px solid var(--c-primary);
  border-radius: 4px; position: relative;
  box-shadow: 10px 10px 0 rgba(14, 58, 102, .07);
  padding: 44px 52px;
}
.contract::before {
  content: ""; position: absolute; inset: 7px;
  border: 1px dashed rgba(14, 58, 102, .28); border-radius: 2px; pointer-events: none;
}
.contract-title { text-align: center; margin-bottom: 32px; position: relative; }
.contract-title .zh { font-size: 25px; font-weight: 800; color: var(--c-primary); letter-spacing: .1em; }
.contract-title .en { font-family: var(--font-num); font-size: 11px; letter-spacing: .34em; color: var(--c-text-2); margin-top: 6px; text-transform: uppercase; }
.contract-title::after { content: ""; display: block; width: 56px; height: 3px; background: var(--c-emphasis); margin: 16px auto 0; }
.clause { display: flex; gap: 20px; padding: 22px 0; position: relative; }
.clause + .clause { border-top: 1px solid var(--c-line); }
.clause-no {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
  border: 1.5px solid var(--c-primary); color: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 700; background: var(--c-bg-alt);
}
.clause h3 { font-size: 17.5px; font-weight: 700; color: var(--c-primary); margin-bottom: 6px; }
.clause p { font-size: 14.5px; color: var(--c-text-2); line-height: 1.9; }
.clause p b { color: var(--c-text); }
.contract-stamp {
  position: absolute; right: 40px; bottom: 30px;
  width: 108px; height: 108px; border-radius: 50%;
  border: 3px solid rgba(232, 163, 61, .75);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  color: rgba(216, 146, 43, .95); transform: rotate(-12deg);
  font-weight: 800; letter-spacing: .1em;
  pointer-events: none; mix-blend-mode: multiply;
}
.contract-stamp::before { content: ""; position: absolute; inset: 6px; border: 1px solid rgba(232,163,61,.5); border-radius: 50%; }
.contract-stamp .star { font-size: 15px; line-height: 1; }
.contract-stamp .txt { font-size: 15px; }
.contract-stamp .co { font-size: 8px; letter-spacing: .18em; opacity: .8; }

/* ============================================================
   FDE 团队
   ============================================================ */
.fde-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.fde-points { margin-top: 26px; display: grid; gap: 16px; }
.fde-point { display: flex; gap: 14px; align-items: flex-start; }
.fde-point .ic { flex-shrink: 0; width: 38px; height: 38px; border-radius: 9px; background: var(--c-accent-soft); color: var(--c-accent); display: flex; align-items: center; justify-content: center; }
.fde-point .ic svg { width: 19px; height: 19px; }
.fde-point h4 { font-size: 16px; font-weight: 700; color: var(--c-primary); }
.fde-point p { font-size: 14px; color: var(--c-text-2); line-height: 1.8; margin-top: 3px; }
.fde-visual { position: relative; }
.fde-panel {
  background: linear-gradient(160deg, var(--c-primary-deep), var(--c-primary));
  border-radius: var(--radius-lg); padding: 44px 40px; color: #fff;
  position: relative; overflow: hidden;
}
.fde-panel::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 36px 36px;
}
.fde-panel-row { display: flex; justify-content: space-between; align-items: baseline; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.14); position: relative; }
.fde-panel-row:last-child { border-bottom: none; }
.fde-panel-row .num { font-size: 34px; font-weight: 700; color: #fff; }
.fde-panel-row .num small { font-size: 15px; font-weight: 600; color: rgba(255,255,255,.7); margin-left: 4px; }
.fde-panel-row .lb { font-size: 13.5px; color: rgba(255,255,255,.75); text-align: right; max-width: 55%; line-height: 1.6; }

/* ============================================================
   我们怎么做事（理念 2×2）
   ============================================================ */
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.value-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 30px 30px 28px 34px; position: relative;
  transition: all .28s var(--ease);
}
.value-card::before {
  content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 3px;
  background: var(--c-accent); border-radius: 0 3px 3px 0;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-card .vc-icon { width: 42px; height: 42px; border-radius: 10px; background: var(--c-accent-soft); color: var(--c-accent); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.value-card .vc-icon svg { width: 21px; height: 21px; }
.value-card h3 { font-size: 18.5px; font-weight: 700; color: var(--c-primary); margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--c-text-2); line-height: 1.95; }
.value-card p b { color: var(--c-text); font-weight: 600; }

/* ============================================================
   服务方式 · 交付物三步
   ============================================================ */
.deliver-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.deliver-step {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 32px 28px; position: relative; transition: all .28s var(--ease);
}
.deliver-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.deliver-step .step-no {
  position: absolute; top: 22px; right: 24px;
  font-family: var(--font-num); font-size: 44px; font-weight: 700;
  color: rgba(14, 58, 102, .08); line-height: 1;
}
.deliver-doc {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--c-accent-soft); border: 1px dashed rgba(0,163,180,.4);
  color: var(--c-primary); font-weight: 700; font-size: 15px;
  border-radius: 8px; padding: 10px 16px; margin-bottom: 18px;
}
.deliver-doc svg { width: 18px; height: 18px; color: var(--c-accent); }
.deliver-step h3 { font-size: 17px; font-weight: 700; color: var(--c-primary); margin-bottom: 8px; }
.deliver-step p { font-size: 14px; color: var(--c-text-2); line-height: 1.9; }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  overflow: hidden; transition: box-shadow .25s var(--ease);
}
.faq-item[open] { box-shadow: var(--shadow-md); border-color: rgba(0,163,180,.35); }
.faq-item summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 14px;
  padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--c-primary);
  min-height: 44px; transition: background .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--c-bg-alt); }
.faq-item summary .faq-q { flex: 1; }
.faq-item summary .faq-icon {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: var(--c-accent-soft); color: var(--c-accent);
  display: flex; align-items: center; justify-content: center;
  transition: transform .3s var(--ease);
}
.faq-item summary .faq-icon svg { width: 13px; height: 13px; }
.faq-item[open] summary .faq-icon { transform: rotate(45deg); background: var(--c-accent); color: #fff; }
.faq-item .faq-a { padding: 4px 24px 22px; font-size: 14.5px; color: var(--c-text-2); line-height: 2; border-top: 1px dashed var(--c-line); margin-top: -1px; padding-top: 18px; }
.faq-item .faq-a b { color: var(--c-text); }

/* ============================================================
   底部强转化区
   ============================================================ */
.convert { background: linear-gradient(160deg, var(--c-primary-deep) 0%, var(--c-primary) 65%, #14456F 100%); color: #fff; position: relative; overflow: hidden; }
.convert::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 44px 44px;
}
.convert-inner { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; padding: 84px 0; align-items: start; }
.convert h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; line-height: 1.35; }
.convert .convert-sub { margin-top: 14px; color: rgba(255,255,255,.72); font-size: 15.5px; line-height: 1.9; }
.convert-benefits { margin-top: 30px; display: grid; gap: 14px; }
.convert-benefits li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: rgba(255,255,255,.9); }
.convert-benefits li svg { flex-shrink: 0; width: 19px; height: 19px; color: var(--c-accent); margin-top: 4px; }
.convert-benefits li b { color: #fff; }
.convert-contact { margin-top: 34px; display: flex; flex-wrap: wrap; align-items: center; gap: 22px; }
.convert-phone { display: inline-flex; flex-direction: column; gap: 2px; }
.convert-phone .label { font-size: 13px; color: rgba(255,255,255,.6); }
.convert-phone .num { font-family: var(--font-num); font-size: 30px; font-weight: 700; letter-spacing: .04em; color: #fff; transition: color .2s; }
.convert-phone:hover .num { color: var(--c-emphasis); }
.convert-qr { display: flex; align-items: center; gap: 12px; }
.convert-qr .qr-box { width: 96px; height: 96px; background: #fff; border-radius: 8px; padding: 6px; }
.convert-qr .qr-box img, .convert-qr .qr-box svg { width: 100%; height: 100%; }
.convert-qr .tip { font-size: 12.5px; color: rgba(255,255,255,.65); line-height: 1.7; }

/* 表单 */
.lead-form {
  background: #fff; border-radius: var(--radius-lg); padding: 36px 34px;
  box-shadow: var(--shadow-lg); color: var(--c-text);
}
.lead-form h3 { font-size: 19px; font-weight: 800; color: var(--c-primary); margin-bottom: 4px; }
.lead-form .form-sub { font-size: 13px; color: var(--c-text-2); margin-bottom: 24px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--c-text); margin-bottom: 6px; }
.form-field label .req { color: #D64545; margin-left: 3px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--c-line);
  border-radius: 8px; font: inherit; font-size: 14.5px; color: var(--c-text);
  background: var(--c-bg-alt); transition: border-color .2s, background .2s;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: none; border-color: var(--c-accent); background: #fff;
  box-shadow: 0 0 0 3px rgba(0,163,180,.12);
}
.form-field .err { display: none; font-size: 12px; color: #D64545; margin-top: 5px; }
.form-field.invalid input, .form-field.invalid textarea { border-color: #D64545; }
.form-field.invalid .err { display: block; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.lead-form .btn { width: 100%; margin-top: 6px; }
.form-privacy { margin-top: 14px; font-size: 12px; color: var(--c-text-2); line-height: 1.7; }
.form-privacy a { color: var(--c-primary-light); text-decoration: underline; }
.form-feedback { display: none; margin-top: 16px; padding: 13px 16px; border-radius: 8px; font-size: 13.5px; line-height: 1.8; }
.form-feedback.ok { display: block; background: rgba(0,163,180,.1); color: #007A88; border: 1px solid rgba(0,163,180,.3); }
.form-feedback.fail { display: block; background: #FDF2F2; color: #B03A3A; border: 1px solid #F3CFCF; }

/* ============================================================
   页脚
   ============================================================ */
.footer { background: var(--c-primary-deep); color: rgba(255,255,255,.75); font-size: 13.5px; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding: 64px 0 48px; }
.footer .f-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer .f-logo img, .footer .f-logo svg { height: 30px; }
.footer .f-about { line-height: 2; color: rgba(255,255,255,.6); }
.footer h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: .04em; }
.footer-col li { margin-bottom: 11px; }
.footer-col a { color: rgba(255,255,255,.65); transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-contact li { margin-bottom: 12px; display: flex; gap: 10px; align-items: flex-start; line-height: 1.7; }
.footer-contact svg { width: 15px; height: 15px; color: var(--c-accent); flex-shrink: 0; margin-top: 4px; }
.footer-contact .fphone { font-family: var(--font-num); font-size: 16px; color: #fff; letter-spacing: .04em; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0; display: flex; flex-wrap: wrap; gap: 10px 26px;
  align-items: center; justify-content: space-between;
  font-size: 12.5px; color: rgba(255,255,255,.45);
}
.footer-bottom a { color: rgba(255,255,255,.55); }
.footer-bottom a:hover { color: #fff; }

/* ============================================================
   内页通用
   ============================================================ */
.page-hero {
  background:
    linear-gradient(180deg, rgba(10,43,76,.06) 0%, rgba(10,43,76,0) 100%),
    linear-gradient(90deg, rgba(14,58,102,.04) 1px, transparent 1px),
    linear-gradient(rgba(14,58,102,.04) 1px, transparent 1px),
    linear-gradient(135deg, #0E3A66 0%, #14497A 100%);
  background-size: auto, 48px 48px, 48px 48px, auto;
  color: #fff; padding: 72px 0 60px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -140px; bottom: -180px;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,163,180,.22) 0%, transparent 65%);
}
.page-hero .breadcrumb { position: relative; z-index: 1; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 22px; }
.breadcrumb a { color: rgba(255,255,255,.65); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb svg { width: 12px; height: 12px; opacity: .55; }
.breadcrumb .current { color: rgba(255,255,255,.9); }
.page-hero h1 { position: relative; z-index: 1; font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; line-height: 1.3; }
.page-hero .ph-sub { position: relative; z-index: 1; margin-top: 14px; color: rgba(255,255,255,.78); font-size: 16px; max-width: 44em; line-height: 1.9; }
.page-hero.light { background: linear-gradient(90deg, rgba(14,58,102,.03) 1px, transparent 1px), linear-gradient(rgba(14,58,102,.03) 1px, transparent 1px), var(--c-bg-alt); background-size: 48px 48px, 48px 48px, auto; color: var(--c-text); }
.page-hero.light h1 { color: var(--c-primary); }
.page-hero.light .breadcrumb, .page-hero.light .breadcrumb a { color: var(--c-text-2); }
.page-hero.light .breadcrumb a:hover { color: var(--c-primary); }
.page-hero.light .breadcrumb .current { color: var(--c-text); }
.page-hero.light::after { background: radial-gradient(circle, rgba(0,163,180,.09) 0%, transparent 65%); }

/* 内页信任条（紧凑） */
.mini-trust {
  border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line);
  background: var(--c-bg-alt); padding: 18px 0;
}
.mini-trust-inner { display: flex; flex-wrap: wrap; gap: 10px 36px; align-items: center; justify-content: center; }
.mini-trust-inner span { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--c-text-2); }
.mini-trust-inner svg { width: 15px; height: 15px; color: var(--c-accent); }

/* ---------- 场景详情页 ---------- */
.scene-hero { }
.scene-hero .result-line {
  display: inline-flex; align-items: baseline; gap: 10px; margin-top: 22px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.22);
  border-radius: 12px; padding: 14px 22px;
}
.scene-hero .result-line .lbl { font-size: 13px; color: rgba(255,255,255,.65); }
.scene-hero .result-line .num { font-family: var(--font-num); font-size: 26px; font-weight: 700; color: #6FD9E3; }
.scene-conclusion {
  background: var(--c-accent-soft); border-left: 4px solid var(--c-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 28px; font-size: 16.5px; line-height: 1.9; color: var(--c-primary); font-weight: 500;
}
.scene-body { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; }
.scene-article h2 {
  font-size: 21px; font-weight: 800; color: var(--c-primary);
  margin: 40px 0 16px; display: flex; align-items: center; gap: 10px;
}
.scene-article h2::before { content: ""; width: 4px; height: 20px; background: var(--c-accent); border-radius: 2px; }
.scene-article p { font-size: 15px; color: var(--c-text-2); line-height: 2.05; margin-bottom: 14px; }
.scene-article ul { display: grid; gap: 12px; margin: 8px 0 16px; }
.scene-article ul li { display: flex; gap: 10px; font-size: 15px; color: var(--c-text-2); line-height: 1.9; }
.scene-article ul li svg { flex-shrink: 0; width: 17px; height: 17px; color: var(--c-accent); margin-top: 5px; }
.scene-article ul li b { color: var(--c-text); }
.info-card {
  background: var(--c-bg-alt); border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  overflow: hidden; margin: 28px 0 8px;
}
.info-card .ic-row { display: grid; grid-template-columns: repeat(3, 1fr); }
.info-card .ic-cell { padding: 20px 18px; text-align: center; }
.info-card .ic-cell + .ic-cell { border-left: 1px solid var(--c-line); }
.info-card .ic-cell .k { font-size: 12px; color: var(--c-text-2); letter-spacing: .08em; margin-bottom: 6px; }
.info-card .ic-cell .v { font-size: 14px; font-weight: 700; color: var(--c-primary); line-height: 1.6; }
.scene-aside { position: sticky; top: 96px; display: grid; gap: 20px; }
.aside-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); }
.aside-card h3 { font-size: 15px; font-weight: 700; color: var(--c-primary); margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.aside-card h3 svg { width: 17px; height: 17px; color: var(--c-accent); }
.aside-card ul { display: grid; gap: 10px; }
.aside-card ul a { display: block; font-size: 13.5px; color: var(--c-text-2); padding: 8px 10px; border-radius: 7px; transition: all .2s; line-height: 1.6; }
.aside-card ul a:hover { background: var(--c-accent-soft); color: var(--c-primary); }
.aside-cta { background: linear-gradient(160deg, var(--c-primary), var(--c-primary-light)); color: #fff; border: none; }
.aside-cta .big-phone { display: flex; flex-direction: column; gap: 2px; padding: 10px 0 16px; }
.aside-cta .big-phone .lbl { font-size: 12px; color: rgba(255,255,255,.6); }
.aside-cta .big-phone .num { font-family: var(--font-num); font-size: 24px; font-weight: 700; letter-spacing: .04em; color: #fff; }
.aside-cta .btn { width: 100%; margin-top: 6px; }

/* ---------- 文章页 ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 56px; align-items: start; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 18px; font-size: 13px; color: rgba(255,255,255,.65); }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta svg { width: 14px; height: 14px; }
.article-body { font-size: 15.5px; }
.article-body .lead-conclusion {
  background: var(--c-accent-soft); border-left: 4px solid var(--c-accent);
  padding: 20px 26px; border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 16.5px; font-weight: 500; color: var(--c-primary); line-height: 1.95; margin-bottom: 8px;
}
.article-body h2 {
  font-size: 21px; font-weight: 800; color: var(--c-primary);
  margin: 42px 0 16px; display: flex; align-items: center; gap: 10px;
}
.article-body h2::before { content: ""; width: 4px; height: 20px; background: var(--c-accent); border-radius: 2px; }
.article-body p { color: var(--c-text-2); line-height: 2.1; margin-bottom: 16px; }
.article-body p b, .article-body li b { color: var(--c-text); }
.article-body ul { margin: 6px 0 18px; display: grid; gap: 10px; }
.article-body ul li { display: flex; gap: 10px; color: var(--c-text-2); line-height: 1.95; font-size: 15px; }
.article-body ul li svg { flex-shrink: 0; width: 16px; height: 17px; color: var(--c-accent); margin-top: 6px; }
.article-cta {
  margin-top: 44px; background: var(--c-bg-alt); border: 1px dashed rgba(0,163,180,.4);
  border-radius: var(--radius-lg); padding: 26px 30px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.article-cta .t { font-size: 16px; font-weight: 700; color: var(--c-primary); }
.article-cta .s { font-size: 13.5px; color: var(--c-text-2); margin-top: 4px; }

/* ---------- 场景中心筛选（来源 × 类型 × 领域 三行维度） ---------- */
.filter-bar {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 18px 24px 14px;
  box-shadow: var(--shadow-sm);
}
.filter-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.filter-row + .filter-row { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--c-line); }
.filter-row.filter-result-row { margin-top: 10px; padding-top: 0; border-top: none; justify-content: flex-end; }
.filter-label { font-size: 13px; font-weight: 700; color: var(--c-text-2); margin-right: 6px; flex: none; }
.filter-chip {
  padding: 7px 15px; border-radius: 100px; font-size: 13px; font-weight: 600;
  background: var(--c-bg-alt); color: var(--c-text-2); border: 1.5px solid transparent;
  transition: all .2s; min-height: 34px;
}
.filter-chip:hover { color: var(--c-primary); border-color: var(--c-line); }
.filter-chip.active { background: var(--c-primary); color: #fff; }
.filter-chip.zero-chip.active { background: var(--c-accent); }
.filter-count { font-size: 13px; color: var(--c-text-2); }
.filter-count b { color: var(--c-accent); font-family: var(--font-num); font-size: 16px; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 32px 28px; text-align: center; transition: all .28s var(--ease); }
.contact-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.contact-card .cc-icon { width: 54px; height: 54px; margin: 0 auto 18px; border-radius: 14px; background: var(--c-accent-soft); color: var(--c-accent); display: flex; align-items: center; justify-content: center; }
.contact-card .cc-icon svg { width: 26px; height: 26px; }
.contact-card h3 { font-size: 17px; font-weight: 700; color: var(--c-primary); margin-bottom: 10px; }
.contact-card .val { font-size: 15px; color: var(--c-text); font-weight: 600; }
.contact-card .val.num { font-family: var(--font-num); font-size: 22px; letter-spacing: .04em; color: var(--c-primary); }
.contact-card .note { font-size: 13px; color: var(--c-text-2); margin-top: 8px; line-height: 1.8; }
.addr-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.addr-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 28px; position: relative; overflow: hidden; }
.addr-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--c-primary), var(--c-accent)); }
.addr-card .tag-hq { font-size: 12px; font-weight: 700; color: var(--c-accent); letter-spacing: .1em; margin-bottom: 8px; }
.addr-card h3 { font-size: 17px; font-weight: 700; color: var(--c-primary); margin-bottom: 10px; }
.addr-card p { font-size: 14px; color: var(--c-text-2); line-height: 1.9; }
.addr-card .map-link { margin-top: 14px; display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--c-primary-light); }
.addr-card .map-link svg { width: 14px; height: 14px; }

/* ---------- 资质 / 软著 / 价值观（关于页） ---------- */
.qual-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.qual-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 26px 24px; display: flex; gap: 16px; align-items: flex-start; transition: all .25s; }
.qual-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.qual-card .q-ic { flex-shrink: 0; width: 44px; height: 44px; border-radius: 10px; background: var(--c-accent-soft); color: var(--c-accent); display: flex; align-items: center; justify-content: center; }
.qual-card .q-ic svg { width: 21px; height: 21px; }
.qual-card h3 { font-size: 15.5px; font-weight: 700; color: var(--c-primary); line-height: 1.5; }
.qual-card p { font-size: 12.5px; color: var(--c-text-2); margin-top: 6px; line-height: 1.7; }
.fit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.fit-card { border-radius: var(--radius-lg); padding: 32px 30px; }
.fit-card.yes { background: #fff; border: 1px solid rgba(0,163,180,.35); }
.fit-card.no { background: var(--c-bg-alt); border: 1px dashed var(--c-line); }
.fit-card h3 { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; color: var(--c-primary); margin-bottom: 16px; }
.fit-card h3 svg { width: 20px; height: 20px; }
.fit-card.yes h3 svg { color: var(--c-accent); }
.fit-card.no h3 svg { color: var(--c-text-2); }
.fit-card ul { display: grid; gap: 10px; }
.fit-card li { display: flex; gap: 10px; font-size: 14.5px; line-height: 1.85; color: var(--c-text-2); }
.fit-card li svg { flex-shrink: 0; width: 16px; height: 16px; margin-top: 6px; }
.fit-card.yes li svg { color: var(--c-accent); }
.fit-card.no li svg { color: #9CA3AF; }
.soft-group { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; }
.soft-group + .soft-group { margin-top: 14px; }
.soft-group summary { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; cursor: pointer; list-style: none; font-weight: 700; color: var(--c-primary); font-size: 15.5px; min-height: 44px; }
.soft-group summary::-webkit-details-marker { display: none; }
.soft-group summary .cnt { font-family: var(--font-num); font-size: 13px; color: var(--c-accent); background: var(--c-accent-soft); padding: 3px 12px; border-radius: 100px; }
.soft-group .soft-rows { border-top: 1px solid var(--c-line); }
.soft-row { display: grid; grid-template-columns: 1fr 200px 130px; gap: 16px; padding: 13px 24px; font-size: 13.5px; border-bottom: 1px dashed var(--c-line); color: var(--c-text-2); }
.soft-row:last-child { border-bottom: none; }
.soft-row .name { color: var(--c-text); font-weight: 500; }

/* ---------- 隐私 / 404 ---------- */
.prose { max-width: 800px; margin: 0 auto; }
.prose h2 { font-size: 20px; color: var(--c-primary); margin: 36px 0 14px; font-weight: 800; }
.prose p, .prose li { font-size: 15px; color: var(--c-text-2); line-height: 2.1; margin-bottom: 12px; }
.prose ul { padding-left: 20px; list-style: disc; }
.error-page { text-align: center; padding: 120px 0 140px; }
.error-page .code { font-family: var(--font-num); font-size: 110px; font-weight: 700; color: rgba(14,58,102,.12); line-height: 1; }
.error-page h1 { font-size: 26px; color: var(--c-primary); margin: 18px 0 12px; }
.error-page p { color: var(--c-text-2); margin-bottom: 30px; }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 40;
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--c-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md); opacity: 0; visibility: hidden;
  transform: translateY(10px); transition: all .3s var(--ease);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--c-primary-light); }
.back-top svg { width: 20px; height: 20px; }

/* ---------- 进场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   响应式（7 档断点收敛）
   ============================================================ */
@media (max-width: 1240px) {
  :root { --container: 1080px; }
}
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; padding: 60px 0 72px; }
  .hero-visual { min-height: 0; display: flex; gap: 20px; align-items: center; justify-content: center; flex-wrap: wrap; }
  .mock-phone { margin-left: 0; width: min(250px, 60%); }
  .mock-chat { position: static; width: min(300px, 60%); }
  .symptom-grid { grid-template-columns: repeat(3, 1fr); }
  .know-grid { grid-template-columns: repeat(2, 1fr); }
  .fde-grid { grid-template-columns: 1fr; gap: 40px; }
  .scene-body, .article-layout { grid-template-columns: 1fr; }
  .scene-aside { position: static; grid-template-columns: repeat(2, 1fr); }
  .convert-inner { grid-template-columns: 1fr; gap: 48px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
  .values-grid { grid-template-columns: 1fr; }
  .deliver-steps { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
}
@media (max-width: 768px) {
  .topbar-slogan { display: none; }
  .topbar-wechat .wx-label { display: none; }
  .mainnav-links { display: none; }
  .nav-toggle { display: flex; }
  .mobile-drawer { display: block; }
  .nav-cta { display: none; }
  .section { padding: 64px 0; }
  .symptom-grid { grid-template-columns: repeat(2, 1fr); }
  .scene-grid { grid-template-columns: 1fr; }
  .trust-stats { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; padding-top: 48px; }
  .trust-stat + .trust-stat::before { display: none; }
  .contract { padding: 34px 26px; }
  .contract-stamp { width: 88px; height: 88px; right: 18px; bottom: 16px; }
  .contract-stamp .txt { font-size: 13px; }
  .info-card .ic-row { grid-template-columns: 1fr; }
  .info-card .ic-cell + .ic-cell { border-left: none; border-top: 1px solid var(--c-line); }
  .scene-aside { grid-template-columns: 1fr; }
  .qual-grid, .contact-grid, .addr-grid { grid-template-columns: 1fr; }
  .fit-grid { grid-template-columns: 1fr; }
  .know-grid { grid-template-columns: 1fr; }
  .filter-bar { position: static; }
  .filter-count { margin-left: 0; width: 100%; }
  .soft-row { grid-template-columns: 1fr; gap: 4px; }
  .layer { padding: 24px 22px; }
}
@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .symptom-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero-ctas .btn { width: 100%; }
  .trust-stats { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 34px; }
  .form-row { grid-template-columns: 1fr; }
  .convert-phone .num { font-size: 24px; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
  .mock-phone, .mock-chat { width: 100%; }
}

/* ================= 解决方案模块 ================= */
/* --- services 页三张方案卡（六槽位） --- */
.sol-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 44px; }
.sol-card {
  display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--c-line); border-top: 4px solid var(--lc, var(--c-primary));
  border-radius: var(--radius); padding: 28px 26px 22px; position: relative;
  box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease;
}
.sol-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg, 0 18px 48px rgba(14,58,102,.16)); }
.sc-layer { margin-bottom: 16px; }
.sc-layer span {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em;
  color: var(--lc, var(--c-primary)); background: color-mix(in srgb, var(--lc, var(--c-primary)) 10%, #fff);
  padding: 5px 12px; border-radius: 999px;
}
.sc-hook { font-size: 19px; font-weight: 800; color: var(--c-primary); line-height: 1.5; }
.sc-pos { margin-top: 10px; font-size: 14px; line-height: 1.9; color: var(--c-text-2); }
.sc-trust {
  margin: 16px 0 0; padding: 12px 14px; border-radius: 10px;
  background: var(--c-bg-alt); display: flex; flex-direction: column; gap: 3px;
}
.sc-trust b { font-size: 15px; color: var(--c-primary); }
.sc-trust span { font-size: 12px; color: var(--c-text-2); }
.sc-examples { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; }
.sc-examples li {
  display: flex; justify-content: space-between; gap: 12px; align-items: baseline;
  padding: 9px 2px; border-bottom: 1px dashed var(--c-line); font-size: 13.5px;
}
.sc-examples li:last-child { border-bottom: 0; }
.ex-name { color: var(--c-text); font-weight: 600; }
.ex-val { color: var(--c-accent); font-weight: 700; white-space: nowrap; }
.sc-promise {
  margin: 14px 0 0; display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--c-text-2);
}
.sc-promise svg { color: var(--c-accent); flex: none; }
.sc-cta {
  margin-top: auto; padding-top: 16px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 14.5px; font-weight: 700; color: var(--c-primary);
}
.sol-card:hover .sc-cta { color: var(--c-accent); }
@media (max-width: 980px) { .sol-cards { grid-template-columns: 1fr; } }

/* --- 方案二级页 --- */
.sol-hero { border-top: 4px solid var(--lc, var(--c-primary)); }
.sol-hero-badge {
  display: inline-block; margin-bottom: 14px; padding: 6px 14px; border-radius: 999px;
  font-size: 12.5px; font-weight: 700; letter-spacing: .08em;
  color: var(--lc, var(--c-primary)); background: color-mix(in srgb, var(--lc, var(--c-primary)) 10%, #fff);
}
.sol-hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag-wip { background: #FFF3E0; color: #B45309; font-weight: 700; }
.sol-narrow { max-width: 880px; }
.sol-lead {
  font-size: 19px; font-weight: 700; line-height: 2; color: var(--c-primary);
  padding: 26px 30px; background: #fff; border-left: 4px solid var(--lc, var(--c-primary));
  border-radius: 0 var(--radius) var(--radius) 0; box-shadow: var(--shadow-sm);
}
.sol-block { margin-top: 46px; }
.sol-block > h3 {
  display: flex; align-items: center; gap: 9px;
  font-size: 21px; font-weight: 800; color: var(--c-primary); margin-bottom: 20px;
}
.sol-block > h3 svg { color: var(--lc, var(--c-accent)); }
.sol-pains { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.sol-pain {
  background: #fff; border: 1px solid var(--c-line); border-radius: 14px; padding: 20px;
  display: flex; gap: 12px; align-items: flex-start;
}
.sol-pain .no {
  flex: none; width: 30px; height: 30px; border-radius: 50%;
  background: color-mix(in srgb, var(--lc, var(--c-primary)) 12%, #fff); color: var(--lc, var(--c-primary));
  font-weight: 800; display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.sol-pain p { font-size: 14px; line-height: 1.9; color: var(--c-text); }
.sol-how { display: flex; flex-direction: column; gap: 14px; }
.sol-step {
  background: #fff; border: 1px solid var(--c-line); border-radius: 14px; padding: 20px 24px;
  display: flex; gap: 16px; align-items: flex-start;
}
.sol-step .no {
  flex: none; width: 44px; height: 44px; border-radius: 12px;
  background: var(--lc, var(--c-primary)); color: #fff; font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.sol-step p { font-size: 15px; line-height: 2; }
.sol-who {
  margin-top: 16px; display: flex; align-items: baseline; gap: 8px;
  font-size: 13.5px; color: var(--c-text-2);
}
.sol-who svg { color: var(--c-accent); flex: none; transform: translateY(2px); }

/* --- 场景清单区 --- */
.sol-listzone { margin-top: 8px; }
.lz-title { font-size: 24px; font-weight: 800; color: var(--c-primary); }
.lz-sub { margin-top: 10px; font-size: 14.5px; color: var(--c-text-2); line-height: 1.9; }
.sol-scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.sol-scene-card {
  display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--c-line); border-radius: 14px; padding: 20px;
  transition: transform .22s ease, box-shadow .22s ease;
}
.sol-scene-card:hover { transform: translateY(-4px); box-shadow: 0 14px 36px rgba(14,58,102,.14); }
.ssc-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.ssc-id {
  font-size: 11.5px; font-weight: 800; letter-spacing: .06em;
  color: var(--c-primary); background: var(--c-bg-alt); padding: 3px 9px; border-radius: 6px;
}
.ssc-wip { font-size: 11px; font-weight: 700; color: #B45309; background: #FFF3E0; padding: 3px 8px; border-radius: 6px; }
.ssc-tag { font-size: 11px; color: var(--c-accent); border: 1px solid color-mix(in srgb, var(--c-accent) 40%, #fff); padding: 2px 8px; border-radius: 6px; }
.sol-scene-card h4 { font-size: 15.5px; font-weight: 700; color: var(--c-text); line-height: 1.6; }
.ssc-hook { margin-top: 8px; font-size: 13px; line-height: 1.8; color: var(--c-text-2); }
.ssc-result {
  margin-top: 12px; display: flex; align-items: baseline; gap: 7px;
  font-size: 12.5px; font-weight: 700; color: var(--c-accent); line-height: 1.7;
}
.ssc-result svg { flex: none; transform: translateY(2px); }
.ssc-more {
  margin-top: auto; padding-top: 14px; font-size: 13px; font-weight: 700;
  color: var(--c-primary); display: inline-flex; align-items: center; gap: 5px;
}
.sol-scene-card:hover .ssc-more { color: var(--c-accent); }
@media (max-width: 980px) { .sol-scene-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .sol-scene-grid { grid-template-columns: 1fr; } .sol-pains { grid-template-columns: 1fr; } }

/* --- 折叠清单（蓝图 / 全景图 / 台账） --- */
.sol-fold { margin-top: 22px; background: #fff; border: 1px solid var(--c-line); border-radius: 14px; padding: 0; overflow: hidden; }
.sol-fold summary {
  cursor: pointer; list-style: none; padding: 18px 24px;
  font-size: 15px; font-weight: 700; color: var(--c-primary);
  background: var(--c-bg-alt); display: flex; align-items: center; gap: 8px;
}
.sol-fold summary::-webkit-details-marker { display: none; }
.sol-fold summary::before { content: "+"; font-size: 18px; color: var(--c-accent); font-weight: 800; }
.sol-fold[open] summary::before { content: "−"; }
.sol-fold[open] summary { border-bottom: 1px solid var(--c-line); }
.bp-intro { padding: 16px 24px 0; font-size: 13.5px; color: var(--c-text-2); line-height: 1.9; }
.bp-layer { padding: 20px 24px 10px; font-size: 14.5px; font-weight: 800; color: var(--c-primary); }
.bp-scroll { overflow-x: auto; padding: 0 24px 20px; }
.bp-table { width: 100%; border-collapse: collapse; font-size: 12.5px; min-width: 720px; }
.bp-table th, .bp-table td { border: 1px solid var(--c-line); padding: 9px 11px; text-align: left; vertical-align: top; line-height: 1.7; }
.bp-table th { background: var(--c-bg-alt); font-size: 12px; color: var(--c-text-2); white-space: nowrap; }
.bp-table td .bp-name, .bp-name { font-weight: 700; color: var(--c-text); }
.os-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 4px 24px 8px; }
.os-card { border-radius: 12px; padding: 18px 20px; }
.os-card.open { background: #F0F7F1; border: 1px solid #CDE5D2; }
.os-card.save { background: #EFF6F9; border: 1px solid #C9E4EE; }
.os-card h4 { font-size: 15px; color: var(--c-primary); }
.os-card ul { margin: 10px 0 0; padding-left: 18px; font-size: 13px; line-height: 2; color: var(--c-text); }
.os-total { margin-top: 10px; font-size: 13.5px; font-weight: 800; color: var(--c-accent); }
.src-note { padding: 6px 24px 18px; font-size: 12px; color: var(--c-text-2); }
@media (max-width: 760px) { .os-grid { grid-template-columns: 1fr; } }

/* --- 四格 / 适合谁 --- */
.sol-grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.g4 { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: 16px 18px; }
.g4 .k { display: block; font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--c-text-2); margin-bottom: 6px; }
.g4 .v { font-size: 13.5px; font-weight: 700; color: var(--c-primary); line-height: 1.8; }
@media (max-width: 760px) { .sol-grid4 { grid-template-columns: 1fr 1fr; } }
.sol-fit { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.sol-fit .fit { display: flex; gap: 12px; border-radius: 12px; padding: 18px 20px; align-items: flex-start; }
.sol-fit .fit svg { flex: none; margin-top: 3px; }
.sol-fit .fit.good { background: #F0F7F1; border: 1px solid #CDE5D2; }
.sol-fit .fit.good svg { color: #1B7F3B; }
.sol-fit .fit.bad { background: #FBF3EC; border: 1px solid #EBD6C3; }
.sol-fit .fit.bad svg { color: #B45309; }
.sol-fit .fit b { font-size: 14px; color: var(--c-primary); }
.sol-fit .fit p { margin-top: 6px; font-size: 13.5px; line-height: 1.9; color: var(--c-text); }
@media (max-width: 760px) { .sol-fit { grid-template-columns: 1fr; } }

/* --- 场景页底部串联 --- */
.sol-next { margin-top: 50px; padding: 24px 28px; background: var(--c-bg-alt); border-radius: 14px; }
.sol-next > p { font-size: 14px; color: var(--c-text-2); }
.sol-next-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.sol-next-links a {
  font-size: 13px; font-weight: 600; color: var(--c-primary);
  background: #fff; border: 1px solid var(--c-line); border-radius: 999px; padding: 8px 15px;
  transition: all .2s ease;
}
.sol-next-links a:hover { color: var(--c-accent); border-color: var(--c-accent); }
.sol-next-links a.back { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* --- 场景中心 · 全量场景库分组 --- */
.sol-group { margin-top: 38px; }
.sol-group:first-of-type { margin-top: 0; }
.sol-group-head {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 16px;
  padding-bottom: 14px; margin-bottom: 20px; border-bottom: 2px solid var(--lc, var(--c-primary));
}
.sol-group-head .sg-label {
  display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .08em;
  color: var(--lc, var(--c-primary)); margin-bottom: 6px;
}
.sol-group-head h3 { font-size: 20px; font-weight: 800; color: var(--c-primary); line-height: 1.5; }
.sol-group-head .sg-more {
  flex: none; font-size: 14px; font-weight: 700; color: var(--lc, var(--c-primary));
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
}
.sol-group-head .sg-more:hover { color: var(--c-accent); }
@media (max-width: 640px) { .sol-group-head { flex-direction: column; align-items: flex-start; } }

/* --- 三份清单 · 条目卡片化 --- */
.item-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px; padding: 4px 24px 20px;
}
.ic-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: 12px;
  padding: 16px 18px 14px; display: flex; flex-direction: column;
  box-shadow: 0 1px 3px rgba(14,58,102,.05); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.ic-card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(14,58,102,.12); border-color: color-mix(in srgb, var(--c-primary) 35%, #fff); }
.ic-head { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 10px; }
.ic-id {
  flex: none; font-size: 11.5px; font-weight: 800; letter-spacing: .04em;
  color: var(--c-accent); background: color-mix(in srgb, var(--c-accent) 10%, #fff);
  padding: 3px 8px; border-radius: 6px; margin-top: 2px; white-space: nowrap;
}
.ic-head h5 { font-size: 15px; font-weight: 800; color: var(--c-primary); line-height: 1.55; }
.ic-field { display: flex; gap: 8px; padding: 7px 0; border-top: 1px dashed var(--c-line); font-size: 12.8px; line-height: 1.85; }
.ic-field .k {
  flex: none; width: 74px; font-weight: 700; color: var(--c-text-2);
}
.ic-field .v { color: var(--c-text); flex: 1; min-width: 0; }
@media (max-width: 700px) {
  .item-grid { grid-template-columns: 1fr; padding: 4px 16px 16px; }
  .ic-field .k { width: 62px; }
}

/* --- 方案卡精简（只保留到信任框）+ 标题/微场景链接态 --- */
.sc-hook a { color: inherit; text-decoration: none; transition: color .2s ease; }
.sc-hook a:hover { color: var(--c-accent); }
.sc-link {
  color: var(--c-accent); font-weight: 700;
  text-decoration: underline; text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--c-accent) 45%, #fff);
  transition: color .2s ease;
}
.sc-link:hover { color: var(--c-primary); }

/* --- 场景卡图标尺寸修复（SVG 无固有宽高，防拉伸成巨图） --- */
.sol-scene-card svg, .sc-promise svg, .scene-card svg { width: 15px; height: 15px; flex: none; }
/* --- 分组说明（清单组导语） --- */
.sg-note { margin: -4px 0 18px; font-size: 13px; color: var(--c-text-2); line-height: 1.9; }
/* --- 清单来源卡字段微调 --- */
.tag-card .ic-field { font-size: 12.5px; padding: 6px 0; }
.tag-card .ic-field .k { width: 78px; }