/* =====================================================================
   小妙 AI · 企业官网设计系统
   依据：《小妙 AI 企业官网内容与设计规范》§9 视觉设计系统
   色彩 / 字体 / 栅格 / 组件 / 动效，移动端优先，尊重 prefers-reduced-motion
   ===================================================================== */

/* 中文标题字体：Noto Serif SC（思源宋体同源设计），按本站现有文字精简。 */
@font-face {
  font-family: "Miao Serif";
  src: url("../fonts/noto-serif-sc-400-subset.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Miao Serif";
  src: url("../fonts/noto-serif-sc-600-subset.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

/* ---------- 9.1 色彩 Token ---------- */
:root {
  --paper:    #F8F5EE;   /* 页面主背景 */
  --paper-2:  #FFFDF8;   /* 卡片与浮层 */
  --ink:      #141414;   /* 标题和正文 */
  --muted:    #6B6862;   /* 辅助说明 */
  --gold:     #B08C5A;   /* 核心强调、连线、标签 */
  --gold-2:   #D7C39F;   /* 深色背景上的暖金 */
  --gold-soft:#EFE6D2;   /* 引用卡浅暖金背景 */
  --night:    #11100E;   /* 章节锚点与主按钮 */
  --line:     rgba(20,20,20,.12);
  --success:  #326B55;   /* 成功与真人承接边界 */
  --warning:  #9B4F43;   /* 风险与合规提醒 */

  /* 字体 */
  --font-serif: "Miao Serif", "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-sans:  -apple-system, BlinkMacSystemFont, "PingFang SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", "Segoe UI", "Hiragino Sans GB", sans-serif;
  --font-num:   Georgia, "Miao Serif", "Songti SC", serif;

  /* 栅格与间距（8px 基础单位） */
  --container: 1280px;
  --container-narrow: 760px;
  --radius-card: 18px;
  --radius-node: 14px;
  --radius-pill: 999px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;

  --shadow-sm: 0 1px 2px rgba(20,20,20,.04), 0 2px 8px rgba(20,20,20,.04);
  --shadow-md: 0 8px 28px rgba(20,20,20,.07);
  --shadow-lg: 0 18px 48px rgba(20,20,20,.10);

  --t-fast: 280ms;
  --t-base: 360ms;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--ink); text-decoration: none; transition: color var(--t-fast) var(--ease); }
a:hover { color: var(--gold); }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; line-height: 1.18; margin: 0; letter-spacing: -.006em; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }

/* ---------- 排版工具 ---------- */
.serif { font-family: var(--font-serif); }
.num { font-family: var(--font-num); font-variant-numeric: lining-nums; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
}
.eyebrow-cn { font-family: var(--font-sans); letter-spacing: .12em; }
h1 { font-size: clamp(26px, 4vw, 42px); line-height: 1.1; letter-spacing: -.012em; }
h2 { font-size: clamp(23px, 3vw, 36px); line-height: 1.16; letter-spacing: -.008em; }
h3 { font-size: clamp(17px, 1.7vw, 21px); }
h4 { font-size: 15.5px; }
.lead { font-size: clamp(15.5px, 1.4vw, 18px); color: var(--muted); line-height: 1.7; max-width: 60ch; }
.muted { color: var(--muted); }
.measure { max-width: var(--container-narrow); }
.measure p + p { margin-top: var(--space-3); }

/* ---------- 布局 ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.container-narrow { max-width: var(--container-narrow); margin-inline: auto; padding-inline: 24px; }
.section { padding-block: clamp(64px, 8vw, 112px); }
.section--tight { padding-block: clamp(48px, 5vw, 72px); }
.section--night { background: var(--night); color: #F2EEE3; }
.section--night h2, .section--night h3 { color: #FBF7EE; }
.section--night .lead { color: rgba(242,238,227,.72); }
.section--night .muted { color: rgba(242,238,227,.6); }
.section-head { max-width: 760px; margin-bottom: clamp(36px, 4vw, 56px); }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 { margin-bottom: 16px; }
.center { text-align: center; margin-inline: auto; }
.stack > * + * { margin-top: var(--space-3); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.grid { display: grid; gap: clamp(16px, 2vw, 26px); }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); } .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ---------- 跳转链接 / 隐藏可见 ---------- */
.skip-link { position: absolute; left: -999px; top: 0; z-index: 100; padding: 12px 18px; background: var(--ink); color: #fff; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* =====================================================================
   头部与全局导航
   ===================================================================== */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(248,245,238,.86); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--line); transition: box-shadow var(--t-fast) var(--ease); }
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.nav { max-width: var(--container); margin-inline: auto; padding-inline: 24px; min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; line-height: 0; }
.brand-logo { display: block; width: auto; height: 42px; }
.drawer-head .brand-logo { height: 38px; }
.footer-brand .brand-logo { height: 42px; }
@media (max-width: 480px) { .brand-logo { height: 36px; } }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-item { position: relative; }
.nav-links > li > a:not(.btn), .nav-trigger { display: inline-flex; align-items: center; gap: 6px; height: 72px; padding: 0 2px; font-size: 16px; color: var(--ink); background: none; border: 0; }
.nav-trigger::after { content: ""; width: 7px; height: 7px; border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor; transform: rotate(45deg) translateY(-2px); transition: transform var(--t-fast) var(--ease); }
.nav-item.is-open .nav-trigger::after, .nav-item:focus-within .nav-trigger::after { transform: rotate(225deg) translateY(1px); }
.dropdown { position: absolute; top: calc(100% - 10px); left: 50%; transform: translate(-50%, 8px); min-width: 260px; padding: 12px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), visibility var(--t-fast); }
.dropdown::before { content: ""; position: absolute; top: -12px; left: 0; right: 0; height: 12px; }
.nav-item.is-open .dropdown, .nav-item:focus-within .dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dropdown a { display: block; padding: 10px 12px; border-radius: 10px; font-size: 15px; color: var(--ink); }
.dropdown a small { display: block; color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.dropdown a:hover { background: var(--gold-soft); color: var(--ink); }
.dropdown a[href*="/agent/c/10"] { margin-top: 6px; padding-top: 12px; border-top: 1px solid var(--line); color: var(--gold); font-weight: 600; }
.dropdown a[href*="/agent/c/10"]:hover { color: var(--ink); }
.nav-cta { margin-left: 4px; }
.nav-links > li > .qimen-entry {
  height: 38px;
  padding: 0 12px 0 9px;
  gap: 7px;
  border: 1px solid rgba(176,140,90,.55);
  border-radius: var(--radius-pill);
  background: rgba(239,230,210,.42);
  color: var(--gold);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}
.qimen-entry__mark { width: 25px; height: 25px; flex: 0 0 25px; }

/* 移动端抽屉 */
.nav-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; background: none; border: 1px solid var(--line); border-radius: 12px; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content: ""; display: block; width: 20px; height: 2px; background: var(--ink); position: relative; transition: transform var(--t-fast) var(--ease), opacity var(--t-fast); }
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }
.drawer-backdrop { position: fixed; inset: 0; z-index: 60; background: rgba(17,16,14,.4); opacity: 0; visibility: hidden; transition: opacity var(--t-base) var(--ease), visibility var(--t-base); }
.drawer-backdrop.is-open { opacity: 1; visibility: visible; }
.drawer { position: fixed; top: 0; right: 0; z-index: 61; width: min(360px, 88vw); height: 100dvh; background: var(--paper-2); border-left: 1px solid var(--line); box-shadow: var(--shadow-lg); transform: translateX(100%); transition: transform var(--t-base) var(--ease); display: flex; flex-direction: column; padding: 20px; overflow-y: auto; }
.drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.drawer-close { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 10px; background: none; font-size: 22px; line-height: 1; color: var(--ink); }
.drawer nav { display: flex; flex-direction: column; gap: 4px; }
.drawer nav a, .drawer nav button { padding: 14px 12px; font-size: 17px; color: var(--ink); text-align: left; border-radius: 10px; border: 0; background: none; display: flex; justify-content: space-between; align-items: center; }
.drawer nav a:hover, .drawer nav button:hover { background: var(--gold-soft); }
.drawer-sub { padding-left: 16px; display: flex; flex-direction: column; }
.drawer-sub a { font-size: 15px; color: var(--muted); padding: 10px 12px; }
.drawer-cta { margin-top: auto; padding-top: 16px; }
@media (max-width: 920px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* =====================================================================
   按钮
   ===================================================================== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 26px; border-radius: var(--radius-pill); font-size: 16px; font-weight: 600; line-height: 1.2; border: 1.5px solid transparent; transition: transform var(--t-fast) var(--ease), background var(--t-fast), color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast); }
.btn--primary { background: var(--night); color: #FBF7EE; }
.btn--primary:hover { color: #FBF7EE; transform: translateY(-2px); box-shadow: 0 0 0 1.5px var(--gold), 0 8px 22px rgba(17,16,14,.18); }
.btn--primary[href*="/agent/c/10"] { position: relative; z-index: 1; }
.btn--primary[href*="/agent/c/10"]:hover { transform: scale(1.03); box-shadow: none; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { color: var(--ink); border-color: var(--gold); transform: translateY(-2px); }
.btn--gold { background: var(--gold); color: #fff; }
.btn--gold:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(176,140,90,.3); }
.btn--on-dark { background: var(--gold-2); color: var(--night); }
.btn--on-dark:hover { color: var(--night); transform: translateY(-2px); box-shadow: 0 0 0 1.5px var(--gold); }
.btn--lg { min-height: 56px; padding: 16px 34px; font-size: 17px; }
.btn--block { width: 100%; }
.btn .arrow { transition: transform var(--t-fast) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* =====================================================================
   卡片组件
   ===================================================================== */
.card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 28px; box-shadow: var(--shadow-sm); }

/* 业务卡：暖白底、1px 边框、顶部 3px 暖金线 */
.biz-card { position: relative; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 30px 28px 28px; overflow: hidden; transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease), border-color var(--t-base); }
.biz-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gold); }
.biz-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(176,140,90,.4); }
.biz-card .biz-tag { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-num); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); font-weight: 600; margin-bottom: 12px; }
.biz-card h3 { font-size: 19px; margin-bottom: 12px; }
.biz-card p { color: var(--muted); font-size: 15.5px; line-height: 1.7; }
.biz-card .biz-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-weight: 600; font-size: 15px; color: var(--ink); }
.biz-card .biz-link .arrow { transition: transform var(--t-fast) var(--ease); }
.biz-card:hover .biz-link .arrow { transform: translateX(4px); color: var(--gold); }

/* 引用卡：左侧 4px 暖金线，浅暖金背景 */
.quote-card { background: var(--gold-soft); border-radius: var(--radius-card); padding: 28px 30px 28px 34px; border-left: 4px solid var(--gold); }
.quote-card p { font-family: var(--font-serif); font-size: clamp(16px, 1.6vw, 19px); line-height: 1.6; color: var(--ink); }

/* 数据卡：数字必须注明口径、时间和来源 */
.data-card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 26px; }
.data-card .num { font-size: clamp(26px, 2.6vw, 36px); color: var(--ink); font-weight: 700; line-height: 1; }
.data-card .data-label { margin-top: 10px; color: var(--muted); font-size: 14px; }
.data-card .data-source { margin-top: 8px; font-size: 12.5px; color: var(--muted); }

/* 特性卡 / 数值卡 */
.feature { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 26px; transition: transform var(--t-base) var(--ease), box-shadow var(--t-base); }
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.feature .feature-ico { width: 44px; height: 44px; border-radius: 12px; background: var(--gold-soft); color: var(--gold); display: grid; place-items: center; margin-bottom: 16px; font-family: var(--font-num); font-weight: 700; }
.feature h3 { font-size: 17px; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 15px; line-height: 1.65; }

/* 步骤 */
.steps { counter-reset: step; display: grid; gap: clamp(16px, 2vw, 24px); }
.step { position: relative; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 28px 26px 26px 26px; }
.step::before { counter-increment: step; content: "0" counter(step); position: absolute; top: 22px; right: 26px; font-family: var(--font-num); font-size: 28px; color: var(--gold-2); font-weight: 700; }
.step h3 { font-size: 17px; margin-bottom: 8px; padding-right: 50px; }
.step p { color: var(--muted); font-size: 15px; line-height: 1.7; }

/* 标签 */
.tag { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; background: var(--gold-soft); color: var(--gold); }
.tag--ghost { background: transparent; border: 1px solid var(--line); color: var(--muted); }
.tag--opc { background: rgba(176,140,90,.14); color: var(--gold); }
.tag--ai { background: rgba(50,107,85,.12); color: var(--success); }
.tag--gx { background: rgba(155,79,67,.1); color: var(--warning); }
.tag--px { background: rgba(17,16,14,.08); color: var(--ink); }

/* =====================================================================
   FAQ 手风琴
   ===================================================================== */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden; }
.faq-q { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 22px 24px; background: none; border: 0; text-align: left; font-family: var(--font-serif); font-size: 16.5px; font-weight: 600; color: var(--ink); }
.faq-q .faq-icon { flex-shrink: 0; width: 24px; height: 24px; position: relative; }
.faq-q .faq-icon::before, .faq-q .faq-icon::after { content: ""; position: absolute; background: var(--gold); border-radius: 2px; transition: transform var(--t-fast) var(--ease); }
.faq-q .faq-icon::before { top: 50%; left: 0; right: 0; height: 2px; transform: translateY(-50%); }
.faq-q .faq-icon::after { left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-50%); }
.faq-item.is-open .faq-icon::after { transform: translateX(-50%) scaleY(0); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height var(--t-base) var(--ease); }
.faq-a-inner { padding: 0 24px 24px; color: var(--muted); font-size: 15.5px; line-height: 1.75; }

/* =====================================================================
   产品示意图（HTML/CSS 流程图，可访问，等价文字见各页 .diagram-caption）
   视觉：乳白背景、墨黑核心节点、暖金连接线、暖白信息卡；圆角 12-16px
   ===================================================================== */
.diagram { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: clamp(20px, 3vw, 40px); overflow-x: auto; }
.diagram-title { font-family: var(--font-num); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; font-weight: 600; }
.diagram-caption { margin-top: 18px; font-size: 14.5px; color: var(--muted); line-height: 1.7; max-width: 70ch; }
.diagram-caption strong { color: var(--ink); }

/* 节点 */
.d-node { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-node); padding: 12px 16px; min-width: 0; }
.d-node b { display: block; font-size: 14.5px; color: var(--ink); }
.d-node small { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }
.d-node--core { background: var(--night); border-color: var(--night); }
.d-node--core b { color: #FBF7EE; }
.d-node--core small { color: var(--gold-2); }
.d-node--gold { border-color: var(--gold); background: var(--gold-soft); }

/* 横向流程：输入 -> 引擎 -> 沉淀 -> 输出 */
.flow-h { display: grid; grid-template-columns: 1fr; gap: 24px; }
.flow-col { display: flex; flex-direction: column; gap: 10px; }
.flow-col-label { font-family: var(--font-num); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; font-weight: 600; }
.flow-arrow { display: flex; align-items: center; justify-content: center; color: var(--gold); }
.flow-arrow svg { width: 100%; height: 22px; }
/* 移动端横向流程图按单列堆叠时，隐藏横向连接箭头（纵向 .flow-v 的下箭头保持显示） */
.flow-h > .flow-arrow { display: none; }
@media (min-width: 760px) {
  .flow-h-4 { grid-template-columns: 1fr 28px 1fr 28px 1fr 28px 1fr; align-items: stretch; }
  .flow-h-3 { grid-template-columns: 1fr 28px 1fr 28px 1fr; align-items: stretch; }
  .flow-h > .flow-arrow { display: flex; }
  .flow-arrow { flex-direction: column; }
  .flow-arrow svg { width: 100%; height: 100%; max-height: 40px; }
}
/* 纵向汇聚（图02 / 图04） */
.flow-v { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.flow-v .d-node { min-width: 220px; text-align: center; }
.flow-v-branches { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.flow-v-branches.grid { display: grid; width: 100%; justify-content: stretch; }
.flow-v .flow-v-branches.grid .d-node { min-width: 0; }

/* =====================================================================
   首屏
   ===================================================================== */
.hero { position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: clamp(32px, 5vw, 64px); align-items: center; padding-block: clamp(48px, 7vw, 96px); }
.hero h1 { margin-top: 18px; margin-bottom: 22px; }
.hero .hero-sub { font-size: clamp(16px, 1.6vw, 19px); line-height: 1.6; color: var(--ink); max-width: 30ch; }
.hero .hero-audience { margin-top: 16px; color: var(--muted); font-size: 15.5px; }
.hero-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-visual { position: relative; aspect-ratio: 1 / 1; max-width: 460px; margin-inline: auto; width: 100%; }
@media (min-width: 980px) { .hero-grid { grid-template-columns: 1.05fr .95fr; } }

/* 面包屑 */
.breadcrumb { padding-block: 28px 8px; font-size: 14px; color: var(--muted); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.breadcrumb li::after { content: "/"; margin-left: 8px; color: var(--line); }
.breadcrumb li:last-child::after { content: ""; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb [aria-current="page"] { color: var(--ink); }

/* 页内标题区 */
.page-head { padding-block: clamp(40px, 5vw, 72px) clamp(24px,3vw,40px); }
.page-head h1 { margin-top: 14px; margin-bottom: 18px; }
.page-head .lead { max-width: 56ch; }

/* =====================================================================
   CTA 带（深色、暖金标题，控制在一屏）
   ===================================================================== */
.cta-band { background: var(--night); color: #F2EEE3; border-radius: var(--radius-card); padding: clamp(40px, 6vw, 72px) clamp(28px, 5vw, 64px); text-align: center; position: relative; overflow: hidden; }
.cta-band h2 { color: var(--gold-2); margin-bottom: 16px; }
.cta-band p { color: rgba(242,238,227,.72); max-width: 52ch; margin-inline: auto; }
.cta-band .btn { margin-top: 28px; }
.cta-promise { margin-top: 18px; font-size: 14px; color: rgba(242,238,227,.55); }

/* 合规 / 风险提醒块 */
.notice { display: flex; gap: 14px; background: rgba(155,79,67,.06); border: 1px solid rgba(155,79,67,.2); border-left: 4px solid var(--warning); border-radius: var(--radius-card); padding: 22px 24px; }
.notice .notice-ico { flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--warning); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 15px; }
.notice p { font-size: 14.5px; color: var(--ink); line-height: 1.7; }
.notice--ok { background: rgba(50,107,85,.06); border-color: rgba(50,107,85,.22); border-left-color: var(--success); }
.notice--ok .notice-ico { background: var(--success); }

/* =====================================================================
   案例卡 / 洞察卡
   ===================================================================== */
.case-card { display: flex; flex-direction: column; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 26px; transition: transform var(--t-base) var(--ease), box-shadow var(--t-base); }
.case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.case-card .case-type { font-family: var(--font-num); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); font-weight: 600; margin-bottom: 12px; }
.case-card h3 { font-size: 17px; margin-bottom: 10px; }
.case-card p { color: var(--muted); font-size: 14.5px; line-height: 1.7; flex: 1; }
.case-card .case-foot { margin-top: 18px; font-size: 13.5px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; }

.insight-card { display: flex; flex-direction: column; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 26px; transition: transform var(--t-base) var(--ease), box-shadow var(--t-base); }
.insight-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.insight-card .insight-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.insight-card h3 { font-size: 17px; margin-bottom: 10px; line-height: 1.35; }
.insight-card .insight-answer { color: var(--muted); font-size: 14.5px; line-height: 1.7; flex: 1; }
.insight-card .insight-meta { margin-top: 18px; font-size: 13.5px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; display: flex; flex-wrap: wrap; gap: 6px 16px; }

/* 洞察订阅卡片 */
.subscribe-card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: clamp(28px, 4vw, 44px); margin-top: clamp(36px, 5vw, 56px); text-align: center; }
.subscribe-card h3 { font-size: clamp(19px, 2.1vw, 24px); margin-bottom: 12px; }
.subscribe-card p { color: var(--muted); max-width: 56ch; margin-inline: auto; margin-bottom: 24px; }
.subscribe-form { max-width: 480px; margin-inline: auto; }
.subscribe-field { display: flex; gap: 12px; }
.subscribe-field input[type="email"] { flex: 1; min-width: 0; padding: 14px 18px; border: 1px solid var(--line); border-radius: var(--radius-pill); font: inherit; background: var(--paper); }
.subscribe-field input:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(176,140,90,.18); }
.subscribe-note { font-size: 13px; color: var(--muted); margin-top: 16px; margin-bottom: 0; }
.subscribe-success { display: none; padding: 16px; border-radius: 12px; background: rgba(50,107,85,.08); border: 1px solid rgba(50,107,85,.22); color: var(--success); }
.subscribe-success.is-shown { display: block; }
@media (max-width: 480px) { .subscribe-field { flex-direction: column; } .subscribe-field .btn { width: 100%; } }

/* 列表行式条目 */
.list-row { display: grid; grid-template-columns: 1fr; gap: 16px; }
.list-row a { display: block; padding: 24px 4px; border-bottom: 1px solid var(--line); transition: padding var(--t-fast) var(--ease); }
.list-row a:hover { padding-left: 14px; color: var(--ink); }
.list-row h3 { font-size: 18px; margin-bottom: 8px; }
.list-row p { color: var(--muted); font-size: 15px; }

/* 照片占位（培训现场，照片待提供） */
.photo-slot { position: relative; aspect-ratio: 3 / 2; border-radius: var(--radius-card); border: 1.5px dashed rgba(176,140,90,.5); background: repeating-linear-gradient(135deg, var(--paper-2), var(--paper-2) 14px, var(--gold-soft) 14px, var(--gold-soft) 28px); display: grid; place-items: center; text-align: center; padding: 20px; overflow: hidden; }
.photo-slot .photo-tag { position: absolute; top: 14px; left: 14px; }
.photo-slot .photo-cap { background: rgba(255,253,248,.92); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; max-width: 90%; }
.photo-slot .photo-cap strong { display: block; font-size: 15px; color: var(--ink); }
.photo-slot .photo-cap span { font-size: 13px; color: var(--muted); }
.photo-slot .photo-pending { font-size: 12.5px; color: var(--gold); letter-spacing: .08em; margin-bottom: 6px; }

/* =====================================================================
   表单（诊断）
   ===================================================================== */
.form-card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); padding: clamp(24px, 4vw, 44px); box-shadow: var(--shadow-sm); }
.field { margin-bottom: 22px; }
.field label { display: block; font-weight: 600; font-size: 15px; margin-bottom: 8px; }
.field .field-hint { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.field input[type="text"], .field input[type="email"], .field input[type="tel"], .field textarea, .field select { width: 100%; padding: 14px 16px; font: inherit; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 12px; transition: border-color var(--t-fast), box-shadow var(--t-fast); }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(176,140,90,.18); }
.field textarea { min-height: 110px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 640px) { .field-row--2 { grid-template-columns: 1fr 1fr; } }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: var(--muted); }
.check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--gold); flex-shrink: 0; }
.form-success { display: none; padding: 26px; border-radius: var(--radius-card); background: rgba(50,107,85,.08); border: 1px solid rgba(50,107,85,.22); border-left: 4px solid var(--success); }
.form-success.is-shown { display: block; }
.form-success h3 { color: var(--success); margin-bottom: 10px; }
.form-success p { color: var(--ink); }
.choice-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
@media (max-width: 540px) { .choice-grid { grid-template-columns: 1fr; } }
.choice { position: relative; }
.choice input { position: absolute; opacity: 0; }
.choice span { display: flex; align-items: center; gap: 8px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; font-size: 14.5px; cursor: pointer; transition: all var(--t-fast); background: var(--paper); }
.choice input:checked + span { border-color: var(--gold); background: var(--gold-soft); color: var(--ink); font-weight: 600; }
.choice input:focus-visible + span { outline: 2px solid var(--gold); outline-offset: 2px; }

/* =====================================================================
   页脚
   ===================================================================== */
.site-footer { background: var(--night); color: rgba(242,238,227,.62); padding-block: clamp(56px, 6vw, 88px) 32px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: clamp(28px, 4vw, 56px); }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand .brand { color: #FBF7EE; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 36ch; }
.footer-col h4 { color: #FBF7EE; font-family: var(--font-sans); font-size: 14px; letter-spacing: .06em; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(242,238,227,.62); font-size: 14.5px; }
.footer-col a:hover { color: var(--gold-2); }
.footer-bottom { margin-top: clamp(36px, 4vw, 56px); padding-top: 24px; border-top: 1px solid rgba(242,238,227,.14); display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(242,238,227,.45); }
.footer-bottom a { color: rgba(242,238,227,.6); }
.footer-pending { font-size: 12px; color: rgba(242,238,227,.35); }

/* =====================================================================
   进入动效（淡入 + 轻位移）
   ===================================================================== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* 文章正文 */
.prose { max-width: var(--container-narrow); margin-inline: auto; }
.prose h2 { margin-top: 2.4em; margin-bottom: .6em; }
.prose h3 { margin-top: 1.8em; margin-bottom: .5em; }
.prose p { margin-bottom: 1.1em; line-height: 1.8; color: var(--ink); }
.prose ul.bullets { list-style: none; margin: 1em 0; }
.prose ul.bullets li { position: relative; padding-left: 22px; margin-bottom: .6em; line-height: 1.75; }
.prose ul.bullets li::before { content: ""; position: absolute; left: 4px; top: .7em; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }
.prose blockquote { margin: 1.4em 0; padding: 16px 22px; border-left: 4px solid var(--gold); background: var(--gold-soft); border-radius: 0 12px 12px 0; color: var(--ink); }
.article-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 14px; color: var(--muted); padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 28px; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden; }
.tbl th, .tbl td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: top; }
.tbl th { background: var(--gold-soft); font-family: var(--font-sans); font-weight: 600; color: var(--ink); }
.tbl tr:last-child td { border-bottom: 0; }
.tbl-wrap { overflow-x: auto; border-radius: var(--radius-card); }

/* 分隔与小工具 */
.divider { height: 1px; background: var(--line); border: 0; margin-block: clamp(32px,4vw,56px); }
.kbd-tag { display: inline-block; padding: 2px 8px; border-radius: 6px; background: var(--gold-soft); color: var(--gold); font-family: var(--font-num); font-size: 13px; font-weight: 600; }