.ssa-auth{--auth-ink:#102f46;--auth-muted:#66788a;--auth-line:#dbe5e9;--auth-brand:#087b73;--auth-brand-dark:#05635d;--auth-soft:#f2f8f7;display:grid;grid-template-columns:minmax(340px,.92fr) minmax(420px,1.08fr);max-width:1080px;min-height:680px;margin:40px auto;border:1px solid var(--auth-line);border-radius:24px;overflow:hidden;background:#fff;color:var(--auth-ink);box-shadow:0 24px 70px rgba(16,47,70,.12);font-family:inherit}.ssa-auth *{box-sizing:border-box}.ssa-auth-intro{position:relative;display:flex;flex-direction:column;padding:52px;color:#fff;background:radial-gradient(circle at 88% 8%,rgba(51,210,190,.28),transparent 28%),linear-gradient(148deg,#102f46 0%,#075d61 56%,#087b73 100%);overflow:hidden}.ssa-auth-intro:after{content:"";position:absolute;right:-110px;bottom:-130px;width:330px;height:330px;border:1px solid rgba(255,255,255,.16);border-radius:50%;box-shadow:0 0 0 50px rgba(255,255,255,.035),0 0 0 100px rgba(255,255,255,.025)}.ssa-auth-brand{position:relative;z-index:1;display:inline-flex;align-items:center;gap:12px;color:#fff!important;text-decoration:none!important}.ssa-auth-brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#fff;color:var(--auth-brand);font-weight:850;font-size:22px;box-shadow:0 8px 20px rgba(0,0,0,.13)}.ssa-auth-brand strong,.ssa-auth-brand small{display:block;color:#fff}.ssa-auth-brand strong{font-size:18px;line-height:1.2}.ssa-auth-brand small{margin-top:3px;font-size:9px;letter-spacing:.19em;opacity:.66}.ssa-auth-copy{position:relative;z-index:1;margin:auto 0 38px}.ssa-auth-kicker{display:block;margin-bottom:14px;font-size:12px;font-weight:750;letter-spacing:.15em;text-transform:uppercase;color:#7ee5d5}.ssa-auth-copy h2{margin:0 0 18px;color:#fff;font-size:clamp(30px,3.5vw,45px);line-height:1.17;letter-spacing:-.035em}.ssa-auth-copy p{max-width:430px;margin:0;color:rgba(255,255,255,.74);font-size:15px;line-height:1.8}.ssa-auth-benefits{position:relative;z-index:1;display:grid;gap:17px;margin:0;padding:0;list-style:none}.ssa-auth-benefits li{display:flex;align-items:center;gap:14px}.ssa-auth-benefits li>span{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;border:1px solid rgba(255,255,255,.23);border-radius:10px;color:#80e7d8;font-size:11px;font-weight:800}.ssa-auth-benefits strong,.ssa-auth-benefits small{display:block;color:#fff}.ssa-auth-benefits strong{font-size:14px}.ssa-auth-benefits small{margin-top:3px;opacity:.59;font-size:12px}.ssa-auth-trust{position:relative;z-index:1;margin:32px 0 0;color:rgba(255,255,255,.48);font-size:11px}.ssa-auth-card{display:flex;flex-direction:column;justify-content:center;padding:54px clamp(38px,6vw,78px);background:#fff}.ssa-auth-mobile-brand{display:none}.ssa-auth-tabs{display:grid;grid-template-columns:1fr 1fr;margin-bottom:35px;border-bottom:1px solid var(--auth-line)}.ssa-auth-tabs button{position:relative;border:0!important;background:transparent!important;color:#83919e!important;padding:12px!important;font:inherit;font-size:15px!important;font-weight:650!important;line-height:1.5!important;text-transform:none!important;letter-spacing:0!important;box-shadow:none!important;cursor:pointer}.ssa-auth-tabs button:after{content:"";position:absolute;left:18%;right:18%;bottom:-1px;height:2px;border-radius:3px;background:transparent}.ssa-auth-tabs button.is-active{color:var(--auth-ink)!important}.ssa-auth-tabs button.is-active:after{background:var(--auth-brand)}.ssa-auth-heading h1{margin:0 0 7px;color:var(--auth-ink);font-size:30px;line-height:1.2;letter-spacing:-.025em}.ssa-auth-heading p{margin:0 0 24px;color:var(--auth-muted);font-size:14px}.ssa-auth-wechat{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;min-height:48px;border:1px solid #a9dfd4;border-radius:10px;background:#effbf7;color:#087662!important;font-weight:700;text-decoration:none!important;transition:background .18s,border-color .18s,transform .18s}.ssa-auth-wechat:hover{border-color:#66c5b3;background:#e4f8f1;color:#075f51!important;transform:translateY(-1px)}.ssa-auth-wechat svg{width:23px;height:23px}.ssa-auth-divider{display:flex;align-items:center;gap:13px;margin:22px 0;color:#93a0aa;font-size:11px}.ssa-auth-divider:before,.ssa-auth-divider:after{content:"";height:1px;flex:1;background:var(--auth-line)}.ssa-auth-form{margin:0}.ssa-auth-field{display:block;margin:0 0 16px}.ssa-auth-field>span:first-child{display:block;margin:0 0 7px;color:var(--auth-ink);font-size:13px;font-weight:700}.ssa-auth-field input{width:100%!important;height:47px!important;margin:0!important;border:1px solid #ccd9df!important;border-radius:9px!important;background:#fff!important;padding:0 13px!important;color:var(--auth-ink)!important;font:inherit!important;font-size:14px!important;box-shadow:none!important;transition:border-color .16s,box-shadow .16s}.ssa-auth-field input:focus{outline:none!important;border-color:var(--auth-brand)!important;box-shadow:0 0 0 3px rgba(8,123,115,.11)!important}.ssa-auth-password{position:relative;display:block}.ssa-auth-password input{padding-right:60px!important}.ssa-auth-password button{position:absolute;top:0;right:2px;height:47px;border:0!important;background:transparent!important;color:var(--auth-brand)!important;padding:0 12px!important;font:inherit!important;font-size:12px!important;font-weight:700!important;text-transform:none!important;letter-spacing:0!important;box-shadow:none!important;cursor:pointer}.ssa-auth-options{display:flex;align-items:center;justify-content:space-between;margin:-2px 0 20px;font-size:12px}.ssa-auth-options label{display:flex;align-items:center;gap:6px;margin:0;color:var(--auth-muted);font-weight:400}.ssa-auth-options input{width:15px;height:15px;margin:0;accent-color:var(--auth-brand)}.ssa-auth-options a,.ssa-auth-switch button,.ssa-auth-legal a{color:var(--auth-brand)!important;text-decoration:none!important}.ssa-auth-submit{display:flex!important;align-items:center!important;justify-content:center!important;gap:14px;width:100%!important;min-height:49px!important;margin:0!important;border:0!important;border-radius:10px!important;background:var(--auth-brand)!important;color:#fff!important;padding:10px 20px!important;font:inherit!important;font-size:14px!important;font-weight:750!important;text-decoration:none!important;text-transform:none!important;letter-spacing:0!important;box-shadow:0 9px 22px rgba(8,123,115,.18)!important;cursor:pointer;transition:background .18s,transform .18s!important}.ssa-auth-submit:hover{background:var(--auth-brand-dark)!important;color:#fff!important;transform:translateY(-1px)}.ssa-auth-submit span{font-size:19px;line-height:1}.ssa-auth-switch{margin:24px 0 0;text-align:center;color:var(--auth-muted);font-size:12px}.ssa-auth-switch button{border:0!important;background:transparent!important;padding:0!important;font:inherit!important;font-weight:700!important;text-transform:none!important;letter-spacing:0!important;box-shadow:none!important;cursor:pointer}.ssa-auth-legal{margin:14px 0 0;text-align:center;color:#8a98a4;font-size:10px;line-height:1.6}.ssa-auth-notice{margin:0 0 20px;border-radius:8px;padding:11px 13px;font-size:12px;line-height:1.55}.ssa-auth-notice.is-error{border:1px solid #f6c9c5;background:#fff3f2;color:#a3322b}.ssa-auth-hp{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.ssa-auth-registration-off{padding:28px;border-radius:12px;background:var(--auth-soft);text-align:center}.ssa-auth-registration-off>span{display:block;color:var(--auth-ink);font-size:18px;font-weight:750}.ssa-auth-registration-off p{margin:8px 0 20px;color:var(--auth-muted);font-size:13px;line-height:1.6}.ssa-auth-signed-in{display:block;min-height:auto;max-width:650px;padding:0;border:0;background:transparent;box-shadow:none}.ssa-auth-account-card{padding:44px;border:1px solid var(--auth-line);border-radius:20px;background:#fff;text-align:center;box-shadow:0 18px 50px rgba(16,47,70,.1)}.ssa-auth-avatar{width:80px;height:80px;margin:0 auto 18px;border:5px solid var(--auth-soft);border-radius:50%}.ssa-auth-account-card .ssa-auth-kicker{color:var(--auth-brand);margin-bottom:8px}.ssa-auth-account-card h2{margin:0 0 6px;color:var(--auth-ink);font-size:28px}.ssa-auth-account-card>p{margin:0;color:var(--auth-muted);font-size:13px}.ssa-auth-account-balance{display:inline-flex;align-items:center;gap:16px;margin:26px 0;padding:13px 20px;border-radius:12px;background:var(--auth-soft)}.ssa-auth-account-balance small{color:var(--auth-muted)}.ssa-auth-account-balance strong{color:var(--auth-brand);font-size:26px}.ssa-auth-account-actions{display:grid;gap:10px;max-width:330px;margin:0 auto}.ssa-auth-secondary,.ssa-auth-logout{display:flex;align-items:center;justify-content:center;min-height:44px;border-radius:9px;text-decoration:none!important;font-size:13px;font-weight:700}.ssa-auth-secondary{border:1px solid var(--auth-line);color:var(--auth-brand)!important}.ssa-auth-logout{color:#8a98a4!important;font-weight:500}@media(max-width:850px){.ssa-auth{grid-template-columns:1fr;max-width:570px;min-height:auto;margin:24px auto}.ssa-auth-intro{display:none}.ssa-auth-card{padding:38px clamp(24px,8vw,58px)}.ssa-auth-mobile-brand{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:28px}.ssa-auth-mobile-brand .ssa-auth-brand-mark{width:35px;height:35px;border:1px solid var(--auth-line);font-size:18px}.ssa-auth-mobile-brand strong{color:var(--auth-ink)}}@media(max-width:520px){.ssa-auth{margin:12px 0;border-radius:16px}.ssa-auth-card{padding:28px 20px}.ssa-auth-heading h1{font-size:26px}.ssa-auth-account-card{padding:32px 20px}}

/* 谷哥大叔品牌色：与头像的柔和蓝色背景和暖色肤调呼应。 */
.ssa-auth{--auth-ink:#514b50;--auth-muted:#687984;--auth-line:#d3e1e8;--auth-brand:#347b9f;--auth-brand-dark:#28637f;--auth-soft:#edf7fb;background:#fdfefe;box-shadow:0 24px 70px rgba(82,100,111,.16)}
.ssa-auth-intro{color:#fff;background:radial-gradient(circle at 88% 10%,rgba(248,224,189,.2) 0,rgba(248,224,189,.08) 15%,transparent 31%),linear-gradient(148deg,#274b61 0%,#2f7193 57%,#28566e 100%)}
.ssa-auth-intro:after{border-color:rgba(255,255,255,.16);box-shadow:0 0 0 50px rgba(255,255,255,.05),0 0 0 100px rgba(255,255,255,.035)}
.ssa-auth-brand{color:#fff!important}.ssa-auth-brand strong,.ssa-auth-brand small{color:#fff}.ssa-auth-brand small{opacity:.88}
.ssa-auth-kicker{color:#fff1d8}
.ssa-auth-copy h2{color:#fff;text-shadow:0 2px 18px rgba(20,48,66,.14)}
.ssa-auth-copy p{color:rgba(255,255,255,.9)}
.ssa-auth-benefits li>span{border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.12);color:#fff1d8}
.ssa-auth-benefits strong{color:#fff}.ssa-auth-benefits small{color:rgba(255,255,255,.88);opacity:1}
.ssa-auth-trust{color:rgba(255,255,255,.82)}
.ssa-auth-card{background:#fdfefe}.ssa-auth-wechat{border-color:#b4d4e3;background:#eef8fc;color:#347b9f!important}.ssa-auth-wechat:hover{border-color:#7fb8d3;background:#e4f3f9;color:#28637f!important}.ssa-auth-field input:focus{box-shadow:0 0 0 3px rgba(52,123,159,.13)!important}.ssa-auth-submit{box-shadow:0 9px 22px rgba(52,123,159,.2)!important}.ssa-auth-registration-off,.ssa-auth-account-balance{background:linear-gradient(135deg,#edf7fb,#f8f0e3)}.ssa-auth-account-card{background:#fdfefe;box-shadow:0 18px 50px rgba(82,100,111,.13)}

.ssa-auth-options button{border:0!important;background:transparent!important;color:var(--auth-brand)!important;padding:0!important;font:inherit!important;font-weight:700!important;text-transform:none!important;letter-spacing:0!important;box-shadow:none!important;cursor:pointer}.ssa-auth-notice.is-success{border:1px solid #acd9c7;background:#eefaf5;color:#176347}.ssa-auth-help{margin:16px 0 0;color:var(--auth-muted);font-size:11px;line-height:1.65}.ssa-auth-panel[hidden]{display:none!important}

.ssa-auth-human{display:grid;grid-template-columns:minmax(105px,1fr) auto 78px;align-items:center;gap:10px;margin:0 0 18px;padding:10px 12px;border:1px solid var(--auth-line);border-radius:9px;background:linear-gradient(135deg,#f7fbfd,#fbf7ef)}.ssa-auth-human>span b,.ssa-auth-human>span small{display:block}.ssa-auth-human>span b{color:var(--auth-ink);font-size:12px}.ssa-auth-human>span small{margin-top:2px;color:var(--auth-muted);font-size:10px}.ssa-auth-human strong{color:#665a60;font-size:15px;white-space:nowrap}.ssa-auth-human input{width:78px!important;height:38px!important;margin:0!important;border:1px solid #bfcfd8!important;border-radius:7px!important;background:#fff!important;padding:0 8px!important;text-align:center;font:inherit!important;font-weight:750!important;color:var(--auth-ink)!important;box-shadow:none!important}.ssa-auth-human input:focus{outline:none!important;border-color:var(--auth-brand)!important;box-shadow:0 0 0 3px rgba(52,123,159,.13)!important}@media(max-width:420px){.ssa-auth-human{grid-template-columns:1fr auto}.ssa-auth-human>span{grid-column:1/-1}.ssa-auth-human input{width:86px!important}}

/* Shared avatar brand mark: replaces the former “谷” character tile. */
.ssa-auth-brand-mark{overflow:hidden;border:1px solid rgba(47,96,122,.12);background:linear-gradient(145deg,#d8f1fb,#91d0ea);box-shadow:0 8px 20px rgba(47,96,122,.18)}
.ssa-auth-brand-mark img{display:block;width:34px;height:34px;object-fit:contain}
.ssa-auth-mobile-brand .ssa-auth-brand-mark img{width:30px;height:30px}

.ssa-auth-referral-offer{display:grid;gap:4px;margin:0 0 18px;padding:12px 14px;border:1px solid #efd39c;border-radius:10px;background:linear-gradient(135deg,#fff8e9,#fff0cf);color:#79551d;text-align:center}.ssa-auth-referral-offer span{font-size:10px;font-weight:800;letter-spacing:.1em}.ssa-auth-referral-offer strong{font-size:14px;color:#9a5b12}.ssa-auth-referral-offer+.ssa-auth-tabs{margin-top:0}