/* ============ 认证 / 落地页 / 分享页 ============ */
.auth-wrap{min-height:100vh;display:flex}
.auth-aside{width:44%;max-width:560px;background:#0f1420;color:#fff;padding:44px 48px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.auth-aside::after{content:"";position:absolute;inset:0;background:
  radial-gradient(600px 300px at 100% 0%,rgba(31,94,255,.28),transparent 60%),
  radial-gradient(500px 260px at 0% 100%,rgba(20,160,120,.16),transparent 60%);pointer-events:none}
.auth-aside>*{position:relative;z-index:1}
.auth-main{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 24px;background:#fff}
.auth-box{width:100%;max-width:372px}
.auth-box h1{font-size:23px;margin-bottom:6px;letter-spacing:-.02em}
.auth-box .sub{color:var(--ink-3);font-size:13.5px;margin-bottom:26px}
.auth-box .foot{margin-top:22px;text-align:center;font-size:13px;color:var(--ink-3)}
.auth-box .foot a{color:var(--brand);font-weight:500}
.auth-box .foot a:hover{text-decoration:underline}
@media(max-width:860px){.auth-aside{display:none}}

.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:16px;letter-spacing:-.01em}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--brand);display:inline-flex;align-items:center;justify-content:center;color:#fff;flex:0 0 32px}
.brand-mark svg{width:18px;height:18px}
.brand.on-dark .brand-mark{background:#fff;color:#0f1420}

.aside-lines{display:grid;gap:18px;margin-top:26px}
.aside-line{display:flex;gap:12px;align-items:flex-start}
.aside-line .ic{width:34px;height:34px;border-radius:9px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;flex:0 0 34px}
.aside-line svg{width:17px;height:17px;opacity:.9}
.aside-line b{display:block;font-size:13.5px;font-weight:500;margin-bottom:2px}
.aside-line span{font-size:12.5px;color:rgba(255,255,255,.56);line-height:1.55}

/* 落地页 */
.land{min-height:100vh;background:#fff;display:flex;flex-direction:column}
.land-nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0;max-width:1100px;margin:0 auto;width:100%;padding-left:24px;padding-right:24px}
.land-nav .links{display:flex;align-items:center;gap:10px}
.land-hero{max-width:1100px;margin:0 auto;padding:64px 24px 40px;width:100%;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.land-hero h1{font-size:42px;line-height:1.18;letter-spacing:-.03em;margin-bottom:18px}
.land-hero .lead{font-size:15.5px;color:var(--ink-2);line-height:1.75;margin-bottom:28px;max-width:460px}
.land-hero .cta{display:flex;gap:10px;align-items:center}
.land-hero .btn{height:40px;padding:0 20px;font-size:14px}
.land-stats{display:flex;gap:34px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line-2)}
.land-stats div b{display:block;font-size:20px;letter-spacing:-.02em}
.land-stats div span{font-size:12.5px;color:var(--ink-3)}
.hero-panel{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 60px rgba(16,24,40,.10);overflow:hidden}
.hero-panel .hp-head{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line-2);background:#fbfcfd}
.hero-panel .hp-head i{width:9px;height:9px;border-radius:50%;background:#e2e5ea;display:inline-block}
.hero-panel .hp-body{padding:14px}
.hp-row{display:flex;align-items:center;gap:11px;padding:9px 6px;border-radius:7px}
.hp-row+.hp-row{border-top:1px solid #f4f5f8}
.hp-row .meta{margin-left:auto;font-size:11.5px;color:var(--ink-3)}
.hp-row .nm{font-size:13px}
.land-features{max-width:1100px;margin:0 auto;padding:56px 24px 70px;width:100%;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat{padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.feat .ic{width:36px;height:36px;border-radius:9px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feat h3{font-size:14.5px;margin-bottom:6px}
.feat p{font-size:13px;color:var(--ink-2);line-height:1.65;margin:0}
.land-foot{border-top:1px solid var(--line-2);padding:20px 24px;text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:auto}
@media(max-width:900px){.land-hero{grid-template-columns:1fr;gap:36px;padding-top:36px}.land-hero h1{font-size:32px}.land-features{grid-template-columns:1fr}}

/* 分享页 */
.share-wrap{max-width:860px;margin:0 auto;padding:36px 20px 60px}
.share-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.share-head .t{flex:1;min-width:0}
.share-head h1{font-size:18px;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.share-head .meta{font-size:12.5px;color:var(--ink-3)}
.share-list{display:grid;gap:1px;background:var(--line-2);border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.share-item{display:flex;align-items:center;gap:12px;padding:12px 14px;background:#fff}
.share-item:hover{background:#fafbfd}
.share-item .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.share-item .sz{font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.share-single{text-align:center;padding:44px 24px}
.share-single .fico{width:60px;height:60px;border-radius:14px;margin:0 auto 16px}
.share-single .fico svg{width:28px;height:28px}
.share-single h3{font-size:16px;margin-bottom:6px;word-break:break-all}
.share-single .sz{color:var(--ink-3);font-size:13px;margin-bottom:22px}
.pwd-box{max-width:360px;margin:0 auto;padding:48px 24px}
.pwd-box .brand{justify-content:center;margin-bottom:26px}