/* 10knet 子页设计系统 · Delphi 浅色奶油风 · v1 */
:root{
  --cream:#FBF7F1;--cream-2:#F4EDE3;--cream-3:#EDE2D3;
  --ink:#221A14;--ink-2:#6E6156;--ink-3:#7A6B5C;
  --orange:#EE5F27;--orange-deep:#D84E18;
  --line:rgba(34,26,20,.1);
  --serif:'Noto Serif SC',serif;--sans:'Noto Sans SC',sans-serif;
  --r-card:26px;--shell:min(1320px, 94vw);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--cream);color:var(--ink);font-family:var(--sans);
  font-size:16.5px;line-height:1.75;-webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(ellipse 90% 50% at 50% -10%, rgba(238,95,39,.07), transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.028'/%3E%3C/svg%3E");
;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:rgba(238,95,39,.2)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
img{max-width:100%;display:block}
:focus-visible{outline:2.5px solid var(--orange);outline-offset:3px;border-radius:6px}
.shell{max-width:var(--shell);margin:0 auto;padding:0 28px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.18em;color:var(--orange);text-transform:uppercase;margin-bottom:16px}
h1,h2,h3{font-family:var(--serif);font-weight:900;line-height:1.18}
.h-display{font-size:clamp(38px,5vw,64px)}
.h-sec{font-size:clamp(28px,3.6vw,44px)}
.lede{font-size:clamp(17px,1.6vw,20px);color:var(--ink-2);max-width:680px;line-height:1.7}
.center{text-align:center}.center .lede{margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:999px;font-size:15.5px;font-weight:700;border:1.5px solid transparent;transition:transform .18s,box-shadow .18s,background .18s}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--orange);color:#FFF8F2;box-shadow:0 10px 26px -10px rgba(238,95,39,.55)}
.btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:var(--ink);background:#fff}
.btn-lg{min-height:56px;padding:0 34px;font-size:16.5px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.center .hero-ctas{justify-content:center}
/* ===== nav ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,247,241,.82);backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:30px;height:72px}
.brand{display:flex;align-items:baseline;gap:9px;margin-right:auto}
.brand-mark{font-family:var(--serif);font-weight:900;font-size:25px}
.brand-mark em{font-style:normal;color:var(--orange)}
.brand-sub{font-size:12.5px;color:var(--ink-3);letter-spacing:.22em;font-weight:500}
.brand-tag{font-size:11.5px;color:var(--ink-3);letter-spacing:.04em;font-weight:500;padding-left:10px;border-left:1px solid var(--line);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links>a,.nav-links>details>summary{display:inline-flex;align-items:center;gap:5px;min-height:44px;padding:0 15px;border-radius:12px;font-size:15px;font-weight:500;color:var(--ink-2);transition:color .15s,background .15s;list-style:none;cursor:pointer}
.nav-links>a:hover,.nav-links>details>summary:hover{color:var(--ink);background:rgba(34,26,20,.05)}
.nav-links>a[aria-current]{color:var(--orange);font-weight:700}
.nav-links details{position:relative}
.nav-links details>summary::-webkit-details-marker{display:none}
.nav-links details>summary::after{content:"";width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.6}
.nav-submenu{position:absolute;top:calc(100% + 10px);left:0;min-width:300px;background:#FFFDF9;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:0 24px 60px -18px rgba(34,26,20,.25);display:grid;gap:2px}
.nav-submenu a{display:grid;gap:3px;padding:12px 14px;border-radius:12px;transition:background .15s}
.nav-submenu a:hover{background:var(--cream-2)}
.nav-submenu strong{font-size:14.5px;font-weight:700}
.nav-submenu span{font-size:13px;color:var(--ink-2);line-height:1.5}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-cta .btn{min-height:44px;padding:0 20px;font-size:14.5px}
/* ===== 子页 hero ===== */
.sub-hero{padding:84px 0 60px}
.sub-hero .lede{margin-top:22px}
/* ===== 通用版块 ===== */
.sec{padding:70px 0}
.sec.alt{background:var(--cream-2);border-block:1px solid var(--line)}
.sec-head{margin:0 auto 44px;max-width:760px;text-align:center}
.sec-head>*{text-align:inherit}
.sec-head.left{margin-left:0;text-align:left}
.sec-head .lede{margin:14px auto 0;font-size:16.5px;max-width:720px}
/* 特性卡网格 */
.f-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.f-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.f-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.f-card{background:var(--cream-2);border:1px solid rgba(34,26,20,.07);border-radius:22px;padding:28px 26px;transition:transform .2s,box-shadow .2s}
.sec.alt .f-card{background:var(--cream)}
.f-card:hover{transform:translateY(-4px);box-shadow:0 24px 50px -24px rgba(34,26,20,.22)}
.f-card .f-ic{width:46px;height:46px;border-radius:14px;background:rgba(238,95,39,.12);display:flex;align-items:center;justify-content:center;color:var(--orange);font-family:var(--serif);font-size:19px;font-weight:900;margin-bottom:16px}
.f-card h3{font-size:19.5px;margin-bottom:9px}
.f-card p{font-size:14.5px;color:var(--ink-2);line-height:1.7}
.f-card .f-num{font-family:var(--serif);font-weight:900;font-size:14px;color:var(--orange);letter-spacing:.1em;display:block;margin-bottom:12px}
/* 清单 */
.check-list{display:grid;gap:13px;margin-top:24px}
.check-list li{list-style:none;display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.65}
.check-list li::before{content:"✓";flex-shrink:0;width:24px;height:24px;border-radius:50%;background:rgba(238,95,39,.14);color:var(--orange);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900;margin-top:2px}
/* 横向步骤 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px}
.flow.cols-6{grid-template-columns:repeat(6,1fr)}
.flow-step{border-top:2.5px solid var(--ink);padding-top:20px}
.flow-step .n{font-family:var(--serif);font-weight:900;font-size:34px;color:var(--orange);line-height:1;display:block;margin-bottom:10px}
.flow-step strong{display:block;font-size:17px;margin-bottom:5px}
.flow-step small{font-size:13.5px;color:var(--ink-2);line-height:1.55;display:block}
/* 左右分栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .visual{aspect-ratio:4/3;border-radius:var(--r-card);background:linear-gradient(150deg,var(--cream-3),var(--cream-2));border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:900;font-size:40px;color:var(--ink-3)}
/* 小胶囊 */
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pills span{font-size:13.5px;font-weight:600;padding:9px 18px;border-radius:999px;background:#FFFDF9;border:1px solid var(--line);color:var(--ink-2)}
.pills span.hot{background:rgba(238,95,39,.1);border-color:rgba(238,95,39,.25);color:var(--orange-deep)}
/* 深色带 */
.dark-band{background:var(--ink);color:var(--cream);border-radius:40px;margin:0 18px;padding:70px 0}
.dark-band .eyebrow{color:#F0A37E}
.dark-band .lede{color:rgba(251,247,241,.62)}
.dark-band .f-card{background:rgba(251,247,241,.06);border-color:rgba(251,247,241,.1)}
.dark-band .f-card:hover{background:rgba(251,247,241,.1)}
.dark-band .f-card h3{color:var(--cream)}
.dark-band .f-card p{color:rgba(251,247,241,.62)}
.dark-band .f-card .f-ic{background:rgba(240,163,126,.15);color:#F0A37E}
/* 团队卡 */
.team-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;max-width:880px;margin:0 auto}
.team-card{background:var(--cream-2);border:1px solid rgba(34,26,20,.07);border-radius:24px;padding:38px 30px;text-align:center;position:relative;overflow:hidden}
.team-card::before{content:"";position:absolute;top:0;left:0;right:0;height:110px;background:radial-gradient(ellipse 75% 100% at 50% 0%,rgba(238,95,39,.14),transparent 70%);pointer-events:none}
.team-photo{width:130px;height:130px;border-radius:50%;margin:0 auto 20px;overflow:hidden;border:3px solid rgba(238,95,39,.4);box-shadow:0 0 0 8px rgba(238,95,39,.07);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:900;font-size:44px;color:#fff;background:linear-gradient(150deg,#E8905F,#C4551F);position:relative}
.team-photo img{width:100%;height:100%;object-fit:cover}
.team-role{color:var(--orange);font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.team-card h3{font-size:25px;margin:8px 0 14px}
.team-card h3::after{content:"";display:block;width:36px;height:2px;background:var(--orange);margin:12px auto 0;border-radius:2px}
.team-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
/* FAQ */
.faq-cats{display:flex;gap:10px;flex-wrap:wrap;margin:34px 0 26px}
.faq-cat{min-height:46px;padding:0 22px;border-radius:999px;border:1.5px solid var(--line);background:transparent;font-size:14.5px;font-weight:600;color:var(--ink-2);transition:all .18s}
.faq-cat:hover{border-color:var(--ink);color:var(--ink)}
.faq-cat[aria-pressed="true"]{background:var(--ink);color:var(--cream);border-color:var(--ink)}
.faq-list{display:grid;gap:12px}
.faq-item{background:var(--cream-2);border:1px solid rgba(34,26,20,.07);border-radius:18px;overflow:hidden}
.faq-item.hide{display:none}
.faq-item summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:21px 26px;font-size:16px;font-weight:700;min-height:44px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:var(--serif);font-size:24px;color:var(--orange);transition:transform .2s;flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .a{padding:0 26px 22px;font-size:15px;color:var(--ink-2);line-height:1.75}
.faq-item .a em{font-style:normal;color:var(--orange);font-weight:700}
/* CTA 带 */
.cta-band{text-align:center;padding:80px 28px;margin:20px 18px 60px;background:radial-gradient(ellipse 70% 60% at 50% 110%,rgba(238,95,39,.16),transparent 65%),var(--cream-2);border-radius:40px;border:1px solid var(--line)}
.cta-band .lede{margin:18px auto 0}
.cta-band .hero-ctas{justify-content:center}
/* 小注 */
.small-note{margin-top:18px;font-size:13px;color:var(--ink-3);line-height:1.7}
/* footer */
footer{border-top:1px solid var(--line);padding:64px 0 40px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-brand p{font-size:14px;color:var(--ink-2);margin-top:14px;max-width:280px;line-height:1.7}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--ink-3);margin-bottom:18px}
.foot-col a{display:block;min-height:34px;font-size:14.5px;color:var(--ink-2)}
.foot-col a:hover{color:var(--orange)}
.foot-base{margin-top:56px;padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--ink-3)}
/* 响应式 */
@media (max-width:1020px){
  .brand-tag{display:none}
  .f-grid,.f-grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .flow,.flow.cols-6{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .btn,.btn-primary,.btn-ghost,.btn-lg{min-height:44px}
  p,li{line-height:1.8}
  .shell{padding:0 20px}
  .nav-links{display:none}
  .nav-cta .btn-ghost{display:none}
  .f-grid,.f-grid.cols-2,.f-grid.cols-4{grid-template-columns:1fr}
  .flow,.flow.cols-6{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr;max-width:460px}
  .dark-band{margin:0 10px;border-radius:28px;padding:50px 0}
  .cta-band{margin:10px 10px 40px;border-radius:28px;padding:60px 22px}
  .foot-grid{grid-template-columns:1fr}
  .sub-hero{padding:56px 0 40px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* ===== 笔记本适配优化 v1.0（2026-08-29）· 子页共享 ===== */

/* 标题居中兜底：覆盖未被 .sec-head 包裹的 h2，消除同页对齐不一致 */
section > h2, .shell > h2, .split > div > h2{text-align:center}

/* 主流笔记本（1021–1440）：字号收敛 */
@media (max-width:1440px) and (min-width:1021px){
  .h-sec{font-size:clamp(30px,3.2vw,46px)}
  .h-display{font-size:clamp(36px,4.4vw,58px)}
}

/* 矮屏笔记本（视口高 ≤860）：垂直节奏压缩 */
@media (max-height:860px){
  .nav{height:64px}
  .sub-hero{padding:60px 0 44px}
  .sec{padding:52px 0}
  .cta-band{padding:60px 28px;margin:20px 18px 40px}
  .site-header{
    backdrop-filter:blur(10px) saturate(1.2);
    -webkit-backdrop-filter:blur(10px) saturate(1.2);
  }
}

/* 超宽屏（≥1600）：卡片呼吸 */
@media (min-width:1600px){
  .f-grid{gap:22px}
  .f-card{padding:32px 30px}
  .flow{gap:20px}
}