/* 邻屿 Linkamio · 官网样式 · 移动优先、明亮蓝青色调、人际连接主视觉 */
:root{
  --ink:#0f2740;--ink-soft:#465e75;--ink-mute:#6b7d90;
  --ocean:#067EAF;--ocean-deep:#0a5a82;--ocean-ink:#0b3b5c;
  --sky:#54B4FF;--cyan:#16DCCD;--cyan-soft:#8BE7DC;--cyan-mist:#baf5ec;--foam:#e0f6f3;
  --line:#e3eef0;--bg:#ffffff;--bg-alt:#f4fbfa;--bg-soft:#eaf7f4;
  --grad:linear-gradient(135deg,#54B4FF 0%,#16DCCD 100%);
  --grad-deep:linear-gradient(150deg,#067EAF 0%,#0992CD 45%,#0aa8c9 100%);
  --grad-hero:linear-gradient(135deg,#067EAF 0%,#0a8fbf 38%,#0ba8b8 70%,#16DCCD 100%);
  --shadow-sm:0 2px 8px rgba(6,126,175,.08);
  --shadow:0 14px 44px rgba(6,126,175,.14);
  --shadow-lg:0 28px 76px rgba(6,126,175,.20);
  --radius:20px;--radius-sm:12px;
  --container:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.25;margin:0;letter-spacing:-.01em;font-weight:700}
p{margin:0}
:focus-visible{outline:3px solid var(--sky);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}
.container.narrow{max-width:780px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:1000;background:var(--ocean);color:#fff;padding:10px 16px;border-radius:0 0 10px 0}
.skip-link:focus{left:0}

/* ===== Header / Nav ===== */
/* 默认透明，覆盖在深色首屏上 → 文字用高对比浅色；滚动后 .elevated 白底 → 深色文字 */
.site-header{position:fixed;inset:0 0 auto 0;z-index:100;transition:background .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s}
.site-header.elevated{background:rgba(255,255,255,.9);backdrop-filter:saturate(160%) blur(14px);box-shadow:var(--shadow-sm)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:66px;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:#ffffff}
.site-header.elevated .brand{color:var(--ocean-deep)}
.brand-mark{display:inline-flex;filter:drop-shadow(0 4px 10px rgba(22,220,205,.4))}
.brand-mark svg{width:34px;height:34px}
.brand-text{transition:color .3s var(--ease)}
.brand-en{margin-left:6px;font-size:13px;font-weight:600;color:var(--cyan-mist);letter-spacing:.04em;transition:color .3s var(--ease)}
.site-header.elevated .brand-en{color:var(--cyan)}
.nav-links{display:none;gap:4px}
/* 首屏深底：链接高对比浅色 + 明确 hover/active */
.nav-links a{padding:8px 14px;border-radius:999px;font-size:15px;color:#eafcff;opacity:.92;transition:color .2s,background .2s,opacity .2s;position:relative}
.nav-links a:hover{color:#ffffff;background:rgba(255,255,255,.16);opacity:1}
.nav-links a:active{background:rgba(255,255,255,.28)}
.nav-links a:focus-visible{outline:2px solid #fff;outline-offset:2px}
/* 滚动后白底：链接转深色 */
.site-header.elevated .nav-links a{color:var(--ink)}
.site-header.elevated .nav-links a:hover{color:var(--ocean);background:var(--bg-soft)}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0;background:transparent;border:0;cursor:pointer;border-radius:10px}
.nav-toggle-bar{height:2px;width:22px;background:#ffffff;border-radius:2px;transition:transform .3s var(--ease),opacity .2s,background .3s}
.site-header.elevated .nav-toggle-bar{background:var(--ocean-deep)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{display:flex;flex-direction:column;background:#fff;border-top:1px solid var(--line);box-shadow:var(--shadow)}
.nav-mobile[hidden]{display:none}
.nav-mobile a{padding:15px 22px;font-size:16px;color:var(--ink-soft);border-bottom:1px solid var(--line);transition:background .2s,color .2s}
.nav-mobile a:hover{color:var(--ocean);background:var(--bg-soft)}
.nav-mobile a:active{background:var(--bg-soft)}

/* ===== Hero ===== */
/* 明亮渐变 + 双栏（移动独立布局）：装饰图形不再绝对定位叠在文字上，杜绝遮挡 */
.hero{position:relative;min-height:auto;display:flex;flex-direction:column;justify-content:flex-end;background:var(--grad-hero);color:#fff;padding:108px 0 0;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;background:radial-gradient(70% 50% at 80% 0%,rgba(139,231,220,.35),transparent 60%),radial-gradient(60% 40% at 10% 20%,rgba(84,180,255,.28),transparent 55%)}
.hero-visual{position:relative;z-index:1;display:flex;justify-content:center;align-items:center;padding:6px 0 0}
.hero-graphic{width:min(420px,86vw);height:auto;filter:drop-shadow(0 18px 50px rgba(6,126,175,.35))}
.hero-inner{position:relative;z-index:2;padding:8px 0 30px;order:2;display:flex;flex-direction:column;align-items:center;gap:6px}
.hero-content{max-width:680px;text-align:center;width:100%}
.hero-eyebrow{font-size:13px;letter-spacing:.28em;color:var(--cyan-mist);font-weight:600;margin:0 0 14px}
.hero-title{font-size:clamp(2.2rem,7.5vw,3.8rem);line-height:1.12;margin:0 0 18px;font-weight:800;letter-spacing:-.01em}
.hero-sub{font-size:clamp(1.02rem,2.6vw,1.32rem);color:#eafff9;margin:0 auto 30px;max-width:520px;line-height:1.7}
.soft-br{display:none}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;justify-content:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;transition:transform .2s var(--ease),box-shadow .2s,background .2s;cursor:pointer;border:0}
.btn-primary{background:#fff;color:var(--ocean);box-shadow:0 10px 30px rgba(6,40,60,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(6,40,60,.3)}
.btn-ghost{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.26);transform:translateY(-2px)}
.hero-foot{font-size:14px;color:var(--cyan-mist);opacity:.95}
/* 白色波浪过渡到下方浅色板块 */
.hero-wave{position:relative;z-index:2;margin-top:auto}
.hero-wave svg{display:block;width:100%;height:60px}

/* hero graphic animation —— 轻量 CSS/SVG，尊重 reduced-motion */
.hg-isle{transform-origin:center;animation:hg-float 6s ease-in-out infinite;animation-delay:var(--d)}
.hg-link{stroke-dasharray:5 9;animation:hg-dash 16s linear infinite}
.hg-twinkle{animation:hg-twinkle 4s ease-in-out infinite;animation-delay:var(--d)}
@keyframes hg-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes hg-dash{to{stroke-dashoffset:-180}}
@keyframes hg-twinkle{0%,100%{opacity:.25}50%{opacity:.95}}

/* ===== Sections ===== */
.section{padding:74px 0}
.section-alt{background:linear-gradient(180deg,var(--bg-alt) 0%,var(--bg-soft) 100%)}
.section-head{max-width:680px;margin:0 auto 40px;text-align:center}
.section-eyebrow{font-size:13px;letter-spacing:.22em;color:var(--cyan);font-weight:600;text-transform:uppercase;margin:0 0 12px}
.section-title{font-size:clamp(1.6rem,4.4vw,2.5rem);color:var(--ocean)}
.section-lead{font-size:clamp(1rem,2.2vw,1.18rem);color:var(--ink-soft);margin:18px 0 0;line-height:1.8}
.section>.container:not(.narrow) .section-lead{margin-inline:auto}

/* positioning pillars */
.positioning-pillars{margin-top:42px;display:grid;gap:18px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.pillar::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad)}
.pillar-no{font-size:13px;font-weight:700;color:var(--cyan);letter-spacing:.1em}
.pillar h3{font-size:1.18rem;margin:8px 0 8px;color:var(--ocean)}
.pillar p{color:var(--ink-soft);font-size:.96rem}

/* why flow —— 去矩形卡片，改为「独立→同行→连接」叙事流动 */
.why-flow{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-direction:column;gap:26px}
.why-point{position:relative;padding:0 0 0 0;display:block}
.why-point .why-step{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--cyan);background:var(--bg-soft);padding:4px 12px;border-radius:999px;margin-bottom:12px}
.why-point--accent .why-step{background:var(--grad);color:#fff}
.why-icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:var(--bg-soft);color:var(--ocean);margin-bottom:14px}
.why-point--accent .why-icon{background:var(--grad);color:#fff}
.why-point h3{font-size:1.2rem;color:var(--ocean-deep);margin-bottom:8px}
.why-point p{color:var(--ink-soft);font-size:1rem;max-width:540px}

/* steps */
.steps{list-style:none;padding:0;margin:8px 0 0;display:grid;gap:0;counter-reset:none}
.step{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:24px 0;border-bottom:1px dashed var(--line)}
.step-last{border-bottom:0}
.step-no{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:700;font-size:1.15rem;box-shadow:0 8px 20px rgba(14,165,233,.3)}
.step-body h3{font-size:1.12rem;color:var(--ocean);margin-bottom:6px}
.step-body p{color:var(--ink-soft);font-size:.97rem}

/* who grid —— 保留卡片但区分视觉：中间高亮强调独立创业者 */
.who-grid{display:grid;gap:18px;margin-top:8px}
.who-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s}
.who-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.who-card-accent{background:var(--grad-deep);color:#fff;border:0;box-shadow:var(--shadow-lg)}
.who-card-accent h3,.who-card-accent .who-sub{color:#fff}
.who-card h3{font-size:1.42rem;color:var(--ocean-deep)}
.who-sub{color:var(--cyan);font-weight:600;margin:4px 0 14px;font-size:.92rem}
.who-card p{color:var(--ink-soft);font-size:.97rem}
.who-card-accent p{color:#dff5f1}

/* format —— 极简数据行，带分隔线，不再用矩形卡片 */
.format-stats{display:grid;gap:0;margin-top:8px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
.format-stat{padding:28px 22px;text-align:center;border-bottom:1px solid var(--line)}
.format-stat:last-child{border-bottom:0}
.format-num{display:block;font-size:2.1rem;font-weight:800;color:var(--ocean);line-height:1.1}
.format-label{display:block;color:var(--cyan);font-weight:700;margin:8px 0 10px;font-size:.95rem}
.format-stat p{color:var(--ink-soft);font-size:.94rem}

/* miniapp */
.miniapp-wrap{display:grid;gap:34px;align-items:center;margin-top:8px}
.miniapp-text .section-title{text-align:left}
.miniapp-note{margin-top:14px;font-size:.92rem;color:var(--ink-mute)}
.miniapp-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);text-align:center;justify-self:center;width:100%;max-width:300px}
.qr-placeholder{width:220px;height:220px;margin:0 auto 18px;border-radius:var(--radius-sm);background:repeating-linear-gradient(45deg,#f1f8fb,#f1f8fb 14px,#e8f4f9 14px,#e8f4f9 28px);display:grid;place-items:center;border:2px dashed var(--cyan-soft)}
.qr-soon{background:var(--grad);color:#fff;font-weight:700;padding:12px 24px;border-radius:999px;letter-spacing:.08em;font-size:1.05rem;box-shadow:var(--shadow)}
.miniapp-card-cap{color:var(--ink-mute);font-size:.92rem}

/* about */
#about .section-title{text-align:center}
#about .section-lead{text-align:center}

/* product cards · 三大并列模块的功能点列表 */
.feat-list{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.feat-list li{font-size:.82rem;line-height:1.4;color:var(--ink-soft);background:var(--bg-soft);border:1px solid var(--cyan-soft);padding:5px 12px;border-radius:999px;font-weight:500}
.feat-list-accent li{background:rgba(255,255,255,.16);color:#eafff9;border:1px solid rgba(223,245,241,.42)}
.who-card .feat-list li,.who-card-accent .feat-list li{font-size:.8rem}

/* about · 企业主体信息表 */
.about-entity{margin-top:32px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
.entity-row{display:flex;flex-wrap:wrap;gap:6px 18px;padding:16px 22px;border-bottom:1px solid var(--line);align-items:baseline}
.entity-row:last-child{border-bottom:0}
.entity-label{font-size:.82rem;color:var(--ink-mute);font-weight:600;letter-spacing:.08em;min-width:72px}
.entity-value{font-size:1rem;color:var(--ink);font-weight:500}

/* footer */
.site-footer{background:var(--ocean);color:#cbd5e1;padding:46px 0 34px}
.footer-inner{display:grid;gap:24px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:600;color:#fff;font-size:15px}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 18px}
.footer-links a{font-size:14px;color:#94a3b8;transition:color .2s}
.footer-links a:hover{color:#fff}
.footer-meta{font-size:13px;line-height:1.9}
.footer-company{color:#e2e8f0}
.footer-icp a,.footer-icp{color:#94a3b8}
.footer-police a,.footer-police{color:#94a3b8}
.footer-contact{color:#94a3b8;margin-top:4px}
.footer-icp a:hover,.footer-police a:hover{color:#fff}

/* reveal animation — 仅在 JS 可用（html.js）时隐藏内容做动画；
   无 JS 时 .js 不存在，下方规则不匹配，内容永远可见（渐进增强）。 */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media(min-width:640px){
  .positioning-pillars{grid-template-columns:repeat(3,1fr)}
  .format-stats{grid-template-columns:repeat(3,1fr)}
  .format-stat{border-bottom:0;border-right:1px solid var(--line)}
  .format-stat:last-child{border-right:0}
  .miniapp-wrap{grid-template-columns:1.4fr 1fr}
}
@media(min-width:880px){
  .nav-links{display:flex}
  .nav-toggle{display:none}
  .nav-mobile{display:none!important}
  /* 桌面 Hero：hero-inner 内双栏 —— 文案左、主视觉右 */
  .hero{min-height:88vh;padding:96px 0 0;display:block}
  .hero-inner{display:grid;grid-template-columns:1.05fr 0.95fr;gap:40px;align-items:center;padding:0 0 70px;max-width:var(--container);margin:0 auto}
  .hero-content{max-width:none;text-align:left;order:1}
  .hero-sub{margin:0 0 30px}
  .hero-actions{justify-content:flex-start}
  .hero-visual{padding:0;justify-content:flex-end;order:2}
  .hero-graphic{width:min(440px,100%)}
  .hero-wave{position:absolute;left:0;right:0;bottom:-1px}
  .why-flow{flex-direction:row;gap:28px;align-items:flex-start}
  .why-point{flex:1}
  .who-grid{grid-template-columns:repeat(3,1fr)}
  .steps{max-width:820px;margin-inline:auto}
  .footer-inner{grid-template-columns:1fr auto;align-items:start}
  .soft-br{display:inline}
  .section{padding:96px 0}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .js .reveal{opacity:1;transform:none}
}