/* 云秀互动官网 3.0 · 共享核心层
   依据：BI v1.0.2 / VI v1.0.2 / COPY-主标副标-v1
   本层只定义设计 Token、骨架与基础件；页面人格在各页样式文件。 */

:root{
  color-scheme:only light;
  --ink:#091321;
  --ink2:#13243a;
  --muted:#52677f;
  --muted2:#66788c;
  --line:rgba(15,42,76,.12);
  --line2:rgba(15,42,76,.2);
  --blue:#1268ff;
  --blue-deep:#0a56d6;
  --blue2:#5aa9ff;
  --cyan:#09b8ee;
  --ice:#edf5ff;
  --ice2:#f6faff;
  --paper:#f9fbfe;
  --navy:#071525;
  --navy2:#0d2037;
  --navy3:#12314f;
  --r-xl:32px;
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh-lift:0 30px 80px rgba(20,64,115,.12);
  --sh-soft:0 14px 40px rgba(20,64,115,.07);
  --wrap:1240px;
  --ease:cubic-bezier(.16,1,.3,1);
  --ease-soft:cubic-bezier(.34,.9,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI","PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --font-display:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI","PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;background:#fff;color:var(--ink);
  font-family:var(--font);font-size:15px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
img{max-width:100%;display:block}
main{overflow:clip}
::selection{background:#d8e8ff;color:#0a3b80}

.wrap{width:min(var(--wrap),calc(100% - 64px));margin:0 auto}
.sr-only{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

.skip{
  position:fixed;left:14px;top:-64px;z-index:4000;background:#fff;color:var(--ink);
  padding:12px 16px;border-radius:12px;box-shadow:var(--sh-lift);
  font-size:13px;font-weight:650;transition:top .2s var(--ease);
}
.skip:focus{top:14px}

/* ——— 排版 ——— */
.kicker{
  margin:0;font-size:11px;line-height:1.5;letter-spacing:.14em;
  font-weight:700;color:var(--blue);
}
.display{
  margin:0;font-family:var(--font-display);
  font-size:clamp(40px,3.7vw,50px);line-height:1.1;letter-spacing:-.035em;font-weight:620;
}
.h2{
  margin:0;font-family:var(--font-display);
  font-size:clamp(28px,2.5vw,36px);line-height:1.18;letter-spacing:-.03em;font-weight:620;
}
.h3{margin:0;font-size:19px;line-height:1.4;font-weight:620;letter-spacing:-.01em}
.lead{margin:0;font-size:18px;line-height:1.62;color:var(--ink2);font-weight:520}
.body{margin:0;font-size:15px;line-height:1.78;color:var(--muted)}
.meta{margin:0;font-size:12px;line-height:1.6;color:var(--muted2)}
.shead{max-width:660px}
.shead .kicker{margin-bottom:16px}
.shead .body{margin-top:16px;max-width:560px}
.dark-band .body{color:#b8c7d8}
.dark-band .shead .body{color:#b8c7d8}

/* ——— Header ——— */
.hd{
  position:fixed;left:0;right:0;top:0;z-index:1000;height:72px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);backdrop-filter:blur(18px) saturate(1.4);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.hd.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 1px 0 var(--line),0 12px 40px rgba(15,42,76,.06)}
.hd-inner{
  width:min(var(--wrap),calc(100% - 64px));height:100%;margin:0 auto;
  display:grid;grid-template-columns:220px 1fr 220px;align-items:center;
}
.brand{display:flex;align-items:center;height:72px}
.brand img{width:88px;height:88px;object-fit:contain;flex:none}
.nav{display:flex;justify-content:center;align-items:stretch;gap:28px;font-size:13px;font-weight:560;color:#51657c}
.nav a{position:relative;display:inline-flex;align-items:center;transition:color .2s}
.nav a:hover{color:var(--ink)}
.nav a.is-active{color:var(--ink);font-weight:650}
.nav a.is-active::after{
  content:"";position:absolute;left:50%;bottom:18px;width:16px;height:2px;
  background:var(--blue);border-radius:2px;transform:translateX(-50%);
}
.hd-cta{justify-self:end}
.hd-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;background:transparent;overflow:hidden;
}
.hd-progress i{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));transform:scaleX(0);transform-origin:left}
.menu-btn{
  display:none;justify-self:end;height:42px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line2);background:#fff;font-size:13px;font-weight:650;cursor:pointer;
}
.mnav{
  position:fixed;left:0;right:0;top:72px;z-index:990;display:none;
  background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);
  padding:10px 22px 26px;box-shadow:0 30px 60px rgba(15,42,76,.10);
  max-height:calc(100dvh - 72px);overflow:auto;
}
.mnav.is-open{display:block}
.mnav a{
  display:flex;justify-content:space-between;align-items:center;min-height:52px;
  border-bottom:1px solid rgba(15,42,76,.07);font-size:16px;color:#1c3249;
}
.mnav a[aria-current="page"]{color:var(--blue);font-weight:700}
.mnav .btn{margin-top:18px;width:100%}

/* ——— Hero 主标对比层（2026-09-16 主人令「主标对比」：主标内部做大小对比＋关键字强调） ——— */
.h1-mini{font-size:.56em;font-weight:560;letter-spacing:0;color:var(--muted);margin-right:.06em}
.h1-mark{color:var(--blue);font-weight:700;letter-spacing:-.02em;background:linear-gradient(180deg,transparent 64%,rgba(18,104,255,.16) 64%);border-radius:6px;padding:0 .08em}

/* ——— 按钮与链接 ——— */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:13.5px;font-weight:650;letter-spacing:.01em;cursor:pointer;background:#fff;color:var(--ink);
  transition:transform .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.btn .arr{transition:transform .35s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:hover .arr{transform:translateX(4px)}
.btn:active{transform:translateY(0)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-deep);box-shadow:0 14px 34px rgba(18,104,255,.28)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{box-shadow:0 14px 34px rgba(9,19,33,.22)}
.btn-ghost{border-color:#c3d6ee;background:#fff}
.btn-ghost:hover{border-color:rgba(18,104,255,.5);background:#f4f9ff}
.btn-ghost-dark{border-color:rgba(255,255,255,.26);background:transparent;color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.08)}
.link-arrow{
  display:inline-flex;align-items:center;gap:12px;font-size:13.5px;font-weight:650;color:#1355b4;
}
.link-arrow i{
  display:grid;place-items:center;width:30px;height:30px;border-radius:50%;
  border:1px solid #b9d2f2;font-style:normal;transition:transform .35s var(--ease),background .35s var(--ease);
}
.link-arrow:hover i{transform:translateX(4px);background:#e9f3ff}
.link-arrow.on-dark{color:#9cc2ff}
.link-arrow.on-dark i{border-color:rgba(120,170,255,.4)}

/* ——— 页脚（2026-09-15 主人令：裸文字块改视觉骨架＋字号接回全站字阶） ——— */
.ft{position:relative;isolation:isolate;overflow:hidden;background:linear-gradient(180deg,#f9fbfe,#f3f7fc);border-top:1px solid var(--line);padding:64px 0 30px}
.ft::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--blue),#09b8ee 42%,rgba(9,184,238,0) 72%)}
.ft::after{content:"";position:absolute;right:calc(max(0px,(100% - var(--wrap)) / 2));top:2px;width:240px;height:62px;background:url(../logo.svg) no-repeat center/contain;opacity:.055;pointer-events:none;z-index:-1}
.ft-grid{display:flex;justify-content:center;align-items:center;gap:112px}
.ft-brand{min-width:0;display:flex;flex-direction:column;align-items:center}
.ft-links{display:flex;align-items:flex-start;justify-content:center}
.ft-col{min-width:0}
.ft-line{width:1px;flex:none;align-self:stretch;background:var(--line);margin:0 44px}
.ft-logo{width:112px;height:112px;object-fit:contain;transform:none}
.ft-tag{margin:12px 0 0;font-size:13px;line-height:1.6;font-weight:600;letter-spacing:.16em;text-indent:.16em;color:#52657a;text-align:center;word-break:keep-all}
.ft-tag::before{content:"";display:block;width:32px;height:2px;border-radius:2px;margin:0 auto 12px;background:linear-gradient(90deg,#1268ff,#09b8ee)}
.ft-mail{display:block;margin-top:16px;text-align:center;font-size:13px;line-height:1.6;letter-spacing:.02em}
.ft h4{margin:0 0 14px;font-size:13px;line-height:1.5;letter-spacing:.12em;font-weight:700;color:var(--blue);word-break:keep-all}
.ft a{color:var(--muted);transition:color .2s var(--ease)}
.ft a:hover{color:var(--blue)}
.ft-col a{display:block;font-size:12px;line-height:2.1;word-break:keep-all}
.ft-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:grid;justify-items:center;gap:8px;text-align:center;
  font-size:10.5px;color:#52657a;
}
.ft-meta{display:inline-flex;align-items:center;gap:12px;flex-wrap:wrap}
.ft-meta a{display:inline;font-size:10.5px;line-height:1.6;color:#52657a}
.ft-meta a:hover{color:var(--blue)}
.ft-meta i{font-style:normal;color:#c3cedb}
.ft-mark{font-size:10px;letter-spacing:.18em;color:#52657a}

/* ——— 联系弹窗 ——— */
.modal{
  position:fixed;inset:0;z-index:2000;display:none;place-items:center;
  background:rgba(5,17,32,.55);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);padding:20px;
}
.modal.is-open{display:grid}
.modal-card{
  width:min(620px,100%);background:#fff;border-radius:var(--r-lg);padding:30px;
  border:1px solid #d8e4f1;box-shadow:0 40px 130px rgba(4,19,39,.28);
  animation:modal-in .45s var(--ease) both;
}
@keyframes modal-in{from{opacity:0;transform:translateY(18px) scale(.985)}to{opacity:1;transform:none}}
.modal-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.modal-close{
  flex:none;width:44px;height:44px;border-radius:50%;border:0;background:#f1f5f9;
  font-size:22px;line-height:1;cursor:pointer;transition:background .25s var(--ease)
}
.modal-close:hover{background:#e3efff}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.form-grid input,.form-grid textarea{
  width:100%;border:1px solid #dbe5ef;border-radius:14px;padding:14px;
  background:#fbfdff;color:var(--ink);font-size:14px;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.form-grid input:focus,.form-grid textarea:focus{outline:none;border-color:var(--blue2);background:#fff}
.form-grid textarea{grid-column:1/-1;min-height:116px;resize:vertical}
.form-error{min-height:20px;margin-top:10px;font-size:12.5px;color:#a72825}
.form-grid input.is-invalid,.form-grid textarea.is-invalid{border-color:#d4473f;background:#fff7f6}
.form-note{margin-top:4px;font-size:12.5px;line-height:1.7;color:var(--muted2)}

:where(a,button,input,textarea,select,[tabindex]):focus-visible{outline:3px solid var(--blue2);outline-offset:3px}

/* ——— 横滑容器右缘渐隐（1.9.7 复审：由 app.js 判定——可滑且未到右端才显示，末卡不再永久淡出）——— */
.is-swipable:not(.at-end){
  -webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 26px),transparent);
  mask-image:linear-gradient(90deg,#000 calc(100% - 26px),transparent);
}

/* ——— 动效基础件（仅在 html.motion 下生效；不可用时内容默认可见）——— */
html.motion .rv{opacity:0;transform:translateY(18px)}
html.motion .rv.is-in{
  opacity:1;transform:none;
  transition:opacity .72s var(--ease),transform .9s var(--ease);
  transition-delay:var(--d,0s);
}
html.motion .mask{overflow:hidden;display:block;padding-bottom:.06em;margin-bottom:-.06em}
html.motion .mask>span{display:block;transform:translateY(114%)}
html.motion .mask.is-in>span{
  transform:none;transition:transform 1s var(--ease);
  transition-delay:var(--d,0s);
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html.motion .rv,html.motion .mask>span{opacity:1!important;transform:none!important}
}

/* ——— 断点 ——— */
@media(max-width:1080px){
  .wrap,.hd-inner{width:calc(100% - 40px)}
  .hd{height:68px}
  .mnav{top:68px;max-height:calc(100dvh - 68px)}
  .nav,.hd-cta{display:none}
  .menu-btn{display:inline-flex;align-items:center}
  .hd-inner{grid-template-columns:1fr auto}
  .brand{height:68px}.brand img{width:80px;height:80px}
  .display{font-size:clamp(32px,4.6vw,40px)}
  .ft-grid{gap:88px}
  .ft-line{margin:0 36px}
  .ft::after{right:20px}
}
@media(max-width:860px){
  /* 移动端字号收敛（2026-09-15 主人令「移动端字体不需要这么大」） */
  .display{font-size:clamp(27px,6.8vw,30px);line-height:1.16}
  .h2{font-size:22px;line-height:1.26}
  .h3{font-size:17px}
  .lead{font-size:15px}
  .body{font-size:14px;line-height:1.72}
  .kicker{font-size:10px}
  .meta{font-size:11px}
  /* 触控目标上移共享层（1.9.7 复审：原散落 home.css，七页不同貌；限定 .ft-links 内，避免波及备案行/邮箱） */
  .brand{min-height:44px}
  .link-arrow{min-height:44px}
  .ft-links a{display:flex;align-items:center;min-height:44px;line-height:1.4}
}
@media(max-width:720px){
  .wrap,.hd-inner{width:calc(100% - 32px)}
  .ft{padding:36px 0 22px}
  /* 移动端页脚：纵向网格——品牌整行 + 两列链接带中线（1.9.7 复审：原 ≤720 网格规则漏 display 死在页面层） */
  .ft-grid{display:grid;grid-template-columns:1fr;gap:26px}
  .ft-links{display:grid;grid-template-columns:1fr auto 1fr;gap:24px}
  .ft-line{margin:0}
  .ft-logo{width:104px;height:104px}
  .ft-tag{margin-top:10px}
  .ft-col{text-align:center}
  .ft h4{margin-bottom:4px;font-size:12px}
  .ft-col a{display:flex;align-items:center;justify-content:center;min-height:34px;font-size:11px;line-height:1.4}
  .ft-bottom{margin-top:24px;padding-top:14px;gap:6px;line-height:1.7;font-size:10px}
  .ft-mail{margin-top:12px;font-size:12px}
  .ft-meta a{font-size:10px}
  .ft::after{right:16px;top:1px;width:140px;height:36px}
  .ft-meta{gap:6px 12px}
  .form-grid{grid-template-columns:1fr}
  .form-grid textarea{grid-column:auto;min-height:104px}
  .modal{align-items:flex-end;padding:8px}
  .modal-card{max-height:92dvh;overflow:auto;border-radius:22px 22px 14px 14px;padding:24px 20px}
  .btn{min-height:50px}
  .mnav{padding:6px 18px 24px}
}
@media(max-width:520px){
  .ft-grid{gap:20px}
  .ft-links{gap:18px}
  .ft-logo{width:96px;height:96px}
  .ft-line{margin:0}
}
@media(max-width:360px){
  .ft-logo{width:88px;height:88px}
  .ft-line{margin:0}
}


/* === GPT 1.9.8 · SEO/GEO + conversion layer === */
.contact-form{margin-top:0}.contact-actions{display:flex;align-items:center;gap:14px;margin-top:16px;flex-wrap:wrap}.contact-status{font-size:12.5px;line-height:1.6;color:var(--muted)}
.form-grid select{width:100%;border:1px solid #dbe5ef;border-radius:14px;padding:14px;background:#fbfdff;color:var(--ink);font-size:14px;transition:border-color .25s var(--ease),background .25s var(--ease)}
.form-grid select:focus{outline:none;border-color:var(--blue2);background:#fff}.hp-field{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important}.form-note a{color:#1355b4;text-decoration:underline;text-underline-offset:3px}
.entity-summary{padding:26px 0;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff,#fbfdff)}
.entity-summary-grid{display:grid;grid-template-columns:120px repeat(3,1fr);gap:12px;align-items:stretch}.entity-summary-label{margin:0;padding:16px 0;font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--blue)}
.entity-chip{padding:15px 18px;border:1px solid var(--line);border-radius:16px;background:#fff}.entity-chip span{display:block;font-size:10.5px;letter-spacing:.08em;color:var(--muted2);margin-bottom:5px}.entity-chip strong{display:block;font-size:13px;line-height:1.55;font-weight:620;color:var(--ink2)}
@media(max-width:860px){.entity-summary{padding:18px 0}.entity-summary-grid{grid-template-columns:1fr;gap:8px}.entity-summary-label{padding:0 0 3px}.entity-chip{padding:13px 15px}.form-grid select{min-height:48px}}

.privacy-consent{display:flex;align-items:flex-start;gap:10px;margin:14px 0 4px;color:#4f6277;line-height:1.65}.privacy-consent input{flex:0 0 auto;width:18px;height:18px;margin-top:2px;accent-color:var(--blue)}.privacy-consent a{color:#1355b4;text-decoration:underline;text-underline-offset:3px}.privacy-consent.is-invalid{color:#a12929}.privacy-consent input:focus-visible{outline:3px solid var(--blue2);outline-offset:3px}