/* ============================================================
   智学云 · 整站统一层 (site-unify.css)
   作为 style.css 的覆盖层加载，统一营销子页的精致度与层级，
   与 platform.css 首页系统对齐：藏青 #0d1730 + 暗金 #b8893e。
   仅做增量提升，不改动各页 HTML 内容。
   ============================================================ */

:root{
  /* 兼容 style.css 未定义变量（缺失会导致 transition 失效） */
  --ease:cubic-bezier(.22,.61,.36,1);
  --radius-lg:18px;
}

/* ---------- 字体与基础排版（更分明层级） ---------- */
body{font-feature-settings:"tnum";letter-spacing:.012em}
h1,h2,h3,h4{font-family:"Noto Serif SC",serif;color:var(--navy);line-height:1.28}
.hero-inner h1,.section h1,.section h2{font-weight:700}
p{color:var(--ink-soft)}

/* ---------- 内页英雄：更大留白 + 藏青强调 ---------- */
.hero-inner{padding:64px 0 54px;position:relative;overflow:hidden;color:var(--ink);
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(184,137,62,.18),transparent 58%),
    radial-gradient(circle at 18% 110%,rgba(13,23,48,.07),transparent 42%),
    linear-gradient(180deg,#fff,var(--bg-soft))}
.hero-inner::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(13,23,48,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(13,23,48,.05) 1px,transparent 1px);
  background-size:44px 44px;-webkit-mask-image:radial-gradient(72% 60% at 50% 0%,#000,transparent)}
.hero-inner .wrap{position:relative;z-index:2}
.hero-inner h1{font-size:clamp(28px,3.6vw,42px);margin:14px 0 16px;letter-spacing:.01em}
.hero-inner p.sub,.hero-inner .sub{font-size:17px;color:var(--muted);max-width:680px;line-height:1.75}
.hero-chips{margin-top:22px;position:relative;z-index:2}
.chip{border:1px solid rgba(184,137,62,.55);background:var(--gold-soft);color:var(--gold-deep);border-radius:999px;
  padding:8px 17px;font-size:13.5px;font-weight:500;box-shadow:0 3px 10px rgba(13,23,48,.12);transition:background .25s,border-color .25s,box-shadow .25s}
.chip:hover{background:#f0e4cc;border-color:var(--gold);box-shadow:0 5px 14px rgba(13,23,48,.18)}
.eyebrow{font-family:"Noto Sans SC";font-weight:700;letter-spacing:.16em}
.breadcrumb{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.breadcrumb .cur{color:var(--gold);font-weight:600}

/* ---------- 区块节奏（更舒展） ---------- */
.section{padding:84px 0;
  background-image:radial-gradient(circle at 50% -8%,rgba(184,137,62,.05),transparent 52%),radial-gradient(circle at 85% 105%,rgba(13,23,48,.03),transparent 42%)}
.section.soft{background-color:var(--bg-soft);background-image:radial-gradient(circle at 50% -8%,rgba(184,137,62,.05),transparent 52%),radial-gradient(circle at 85% 105%,rgba(13,23,48,.03),transparent 42%)}
.sec-head{max-width:740px;margin:0 auto 52px;text-align:center}
.sec-head h2{font-size:var(--fs-h2);margin-bottom:14px;letter-spacing:.01em}
.sec-head p{font-size:16px;color:var(--muted);line-height:1.8}

/* ---------- 卡片统一：圆角 / 微质感 / 悬浮上浮 ---------- */
.pcard,.adv,.cert,.stat,.panel,.article,.cp,.dcol,.bpoint,.ecard{
  border-radius:var(--radius);border:1px solid var(--line);background:#fff;
  box-shadow:var(--shadow-card);transition:transform .42s var(--ease),box-shadow .42s var(--ease),border-color .42s}
.pcard:hover,.adv:hover,.cert:hover,.article:hover,.cp:hover,.dcol:hover{
  transform:translateY(-5px);box-shadow:var(--shadow-card-hover);border-color:rgba(184,137,62,.42)}
.pcard{border-radius:var(--radius-lg,18px);padding:30px}
.pcard .kicker{font-family:"Noto Sans SC";letter-spacing:.14em;color:var(--gold-deep);font-weight:700;font-size:12px}
.pcard h3{font-size:var(--fs-card-title);margin:8px 0 12px}
.pcard p{font-size:15px;color:var(--muted);line-height:1.7}
.tag{border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);color:var(--ink-2);
  font-size:12.5px;padding:5px 12px}
.link-more{color:var(--gold-deep);font-weight:600;font-size:14px}

/* 优势卡 / 认证卡 / 统计 */
.adv{border-radius:var(--radius-lg,18px);padding:28px;background:#fff}
.adv-no{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:var(--gold-soft);color:var(--gold);font-family:"Noto Serif SC";font-weight:700;font-size:17px;margin-bottom:14px}
.adv h3{font-size:18px;margin-bottom:8px}
.adv p{font-size:14px;color:var(--muted);line-height:1.7}
.cert{border-radius:var(--radius-lg,18px);padding:26px}
.cert h4{font-size:18px;margin-bottom:6px}
.csub{color:var(--gold-deep);font-family:"Noto Serif SC";font-weight:700;font-size:14px;margin-bottom:14px}
.stat b{font-family:"Noto Serif SC";font-size:34px;color:var(--navy);display:block;line-height:1}
.stat em{font-style:normal;color:var(--gold-deep);font-size:18px;margin-left:2px}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- 按钮光泽（与 platform.css 对齐） ---------- */
.btn,.btn-gold,.btn-light,.btn-primary,.btn-ghost{border-radius:999px;font-weight:500;transition:transform .26s var(--ease),box-shadow .26s var(--ease),background .26s}
.btn-gold{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--gold,#b8893e),var(--gold-2,#d6a85c));color:#1a1304;box-shadow:0 12px 26px rgba(184,137,62,.30)}
.btn-gold::after{content:"";position:absolute;top:0;left:0;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);transform:skewX(-18deg) translateX(-150%);
  transition:transform .6s var(--ease)}
.btn-gold:hover{transform:translateY(-2px);background:linear-gradient(135deg,var(--gold,#b8893e),var(--gold-2,#d6a85c));color:#1a1304;box-shadow:0 18px 34px rgba(184,137,62,.40)}
.btn-gold:hover::after{transform:skewX(-18deg) translateX(300%)}
.btn-primary{background:linear-gradient(135deg,var(--gold,#b8893e),var(--gold-2,#d6a85c));color:#1a1304}
.btn-primary:hover{transform:translateY(-2px);color:#1a1304}
.btn-gold:active,.btn-primary:active{transform:translateY(1px)}


/* ---------- 页脚：统一藏青底（兼容 .foot-grid / .foot-top 两套结构） ---------- */
footer{border-top:1px solid rgba(255,255,255,.1)}
footer .wrap{padding-top:56px;padding-bottom:30px}
footer .logo,footer .logo b{color:#fff}
footer h5{font-size:15px;font-weight:700;margin-bottom:16px}
footer a{font-size:13.5px;padding:6px 0;display:block;transition:color .25s}
footer a:hover{color:var(--gold-2)}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:22px;
  margin-top:8px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:rgba(255,255,255,.62)}
.foot-note{margin-top:14px;font-size:12px}
.foot-brand p{font-size:14px;max-width:340px;line-height:1.7}

/* ---------- 列表 / 勾选 ---------- */
.checklist li{display:flex;align-items:center;gap:11px;font-size:15px;color:var(--ink-2);margin-bottom:12px}
.ck{width:22px;height:22px;border-radius:50%;flex:none;background:var(--gold-soft);position:relative}
.ck::after{content:"";position:absolute;left:7px;top:4px;width:6px;height:11px;border:solid var(--gold);
  border-width:0 2px 2px 0;transform:rotate(42deg)}

/* ---------- 响应式补齐（与 platform.css 断点一致） ---------- */
@media (max-width:980px){
  .section{padding:64px 0}
  .hero-inner{padding:48px 0 40px}
  .ab-grid,.cert-wall,.roles,.case-pick,.articles,.advs{grid-template-columns:repeat(2,1fr)}
  .main,.nav-search{display:none}
  .menu-btn{display:flex}
  .split,.dual,.eco,.diff,.about,.cta-band .cb{grid-template-columns:1fr}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  .hero-inner h1{font-size:28px}
  .ab-grid,.cert-wall,.roles,.case-pick,.articles,.advs,.stats{grid-template-columns:1fr 1fr}
}

/* ---------- 代码示例块（开放平台页） ---------- */
.code-sample{background:var(--code-bg);border:1px solid var(--deep-line);border-radius:14px;
  padding:18px 20px;overflow:auto;margin:8px 0 0;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  font-size:13px;line-height:1.75;color:#cdd6f0;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 8px 24px rgba(0,0,0,.25)}
.code-sample code{color:#e7ecff;white-space:pre}
.code-sample .tok{color:#b8893e}