/* ============================================================
 * 上岸驾驶舱 · 全站共享样式 v5 —— 浅色科技风（方案 A 浅色版）
 * 结构语言：悬浮胶囊导航 / 居中 hero / 玻璃感面板 / 进度条雷达。
 * 默认浅色；html[data-theme=dark] 切换为 A 方案的深色驾驶舱。
 * ============================================================ */
:root{
  color-scheme: light;
  --bg:#f5f7fa; --card:#ffffff; --bg-2:#eef1f6;
  --ink:#0f1b2d; --ink-2:#42536b; --ink-3:#7c8aa0; --ink-4:#b3bdcc;
  --line:#e3e9f0; --line-2:#edf1f6;
  --acc:#0d9488; --acc-deep:#0f766e; --acc-bright:#0d9488; --acc-tint:#e6f7f4;
  --acc-dim:rgba(13,148,136,.10); --sky:#0284c7;
  --grad:linear-gradient(92deg,#0d9488,#0284c7);
  --track:#e8edf3;
  --shadow:0 1px 2px rgba(15,27,45,.05), 0 8px 24px -12px rgba(15,27,45,.12);
  --shadow-lg:0 2px 6px rgba(15,27,45,.06), 0 20px 48px -16px rgba(15,27,45,.22);
  --mono:"SF Mono",ui-monospace,"Cascadia Mono",Consolas,"Liberation Mono",monospace;
}
html[data-theme="dark"]{
  color-scheme: dark;
  --bg:#0c0e11; --card:#12151a; --bg-2:#1a1e25;
  --ink:#f0f4f8; --ink-2:#a8b3bd; --ink-3:#6b7681; --ink-4:#47505a;
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.05);
  --acc:#2dd4a7; --acc-deep:#8be8cf; --acc-bright:#2dd4a7; --acc-tint:rgba(45,212,167,.10);
  --acc-dim:rgba(45,212,167,.14); --sky:#38bdf8;
  --grad:linear-gradient(92deg,#2dd4a7,#38bdf8);
  --track:rgba(255,255,255,.07);
  --shadow:0 1px 2px rgba(0,0,0,.4);
  --shadow-lg:0 24px 80px -32px rgba(0,0,0,.8), 0 0 60px -30px rgba(45,212,167,.25);
}
@media (prefers-color-scheme: dark){
  html:not([data-theme="light"]){
    color-scheme: dark;
    --bg:#0c0e11; --card:#12151a; --bg-2:#1a1e25;
    --ink:#f0f4f8; --ink-2:#a8b3bd; --ink-3:#6b7681; --ink-4:#47505a;
    --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.05);
    --acc:#2dd4a7; --acc-deep:#8be8cf; --acc-bright:#2dd4a7; --acc-tint:rgba(45,212,167,.10);
    --acc-dim:rgba(45,212,167,.14); --sky:#38bdf8;
    --grad:linear-gradient(92deg,#2dd4a7,#38bdf8);
    --track:rgba(255,255,255,.07);
    --shadow:0 1px 2px rgba(0,0,0,.4);
    --shadow-lg:0 24px 80px -32px rgba(0,0,0,.8), 0 0 60px -30px rgba(45,212,167,.25);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.7;
  font-family:"Inter","HarmonyOS Sans SC","MiSans",-apple-system,"PingFang SC","Segoe UI","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}

/* ===== 悬浮胶囊导航 ===== */
.pillnav{position:sticky;top:14px;z-index:30;display:flex;align-items:center;justify-content:space-between;
  gap:12px;margin:14px auto 0;max-width:1240px;padding:9px 10px 9px 20px;border-radius:99px;
  background:color-mix(in srgb, var(--card) 82%, transparent);
  border:1px solid var(--line);box-shadow:var(--shadow);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.pillnav .logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;letter-spacing:-.01em}
.pillnav .logo i{width:22px;height:22px;border-radius:7px;display:inline-block;
  background:linear-gradient(135deg,var(--acc),var(--sky));flex-shrink:0}
html[data-theme="dark"] .pillnav .logo i{box-shadow:0 0 14px rgba(45,212,167,.5)}
.pillnav .links{display:flex;align-items:center;gap:4px}
.pillnav .links a{padding:7px 14px;border-radius:99px;font-size:13.5px;color:var(--ink-2);transition:.15s}
.pillnav .links a:hover{color:var(--ink);background:var(--bg-2)}
.pillnav .links a.on{color:var(--ink);font-weight:700}
.pillnav .links a.pri{background:var(--ink);color:var(--bg);font-weight:700}
html[data-theme="dark"] .pillnav .links a.pri{background:var(--acc);color:#04211a}
.pillnav .links a.pri:hover{opacity:.9}
.pillnav .btn-icon{background:transparent;color:var(--ink-2);border:none;padding:7px 12px;
  border-radius:99px;font-size:13px;cursor:pointer;transition:.15s;font-family:inherit}
.pillnav .btn-icon:hover{color:var(--ink);background:var(--bg-2)}

/* ===== 通用区块 ===== */
.sect{margin-top:clamp(64px,11vh,112px)}
.sect-h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.sect-h h2{margin:0;font-size:clamp(21px,2.6vw,26px);font-weight:800;letter-spacing:-.02em}
.sect-h .h{font-family:var(--mono);font-size:11.5px;color:var(--ink-4);letter-spacing:.06em}
.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;
  box-shadow:var(--shadow)}

/* ===== 按钮 ===== */
button,.btn{cursor:pointer;border:none;border-radius:12px;padding:11px 22px;font-size:14px;font-weight:700;
  font-family:inherit;display:inline-flex;align-items:center;gap:8px;transition:.18s}
button:active,.btn:active{transform:scale(.98)}
.btn-pri{background:var(--ink);color:var(--bg)}
html[data-theme="dark"] .btn-pri{background:var(--acc);color:#04211a}
.btn-pri:hover{transform:translateY(-1px);opacity:.92}
.btn-ghost{background:var(--card);color:var(--ink-2);border:1px solid var(--line)}
.btn-ghost:hover{color:var(--ink);border-color:var(--ink-4)}

/* ===== 页脚 ===== */
footer{margin-top:clamp(64px,11vh,104px);border-top:1px solid var(--line);padding:24px 0 40px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11px;color:var(--ink-4);letter-spacing:.04em;line-height:2}
footer a{color:var(--ink-3)}
footer a:hover{color:var(--ink)}

@keyframes up{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}

@media (max-width:680px){
  .wrap{padding:0 16px}
  .pillnav{top:8px;margin:8px 12px 0;padding:8px 8px 8px 16px}
  .pillnav .links a{padding:6px 10px;font-size:12.5px}
  .pillnav .links a.hide-m{display:none}
  footer{flex-direction:column;gap:4px}
}