:root{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;color:#172338;background:#f6f8fc;font-synthesis:none;--blue:#0869e8;--deep:#0754bd;--line:#e4eaf3;--muted:#768297;--card:#fff;--soft:#f4f6fa}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}a{color:inherit}img{max-width:100%}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.035em}p{line-height:1.7}.eyebrow{color:var(--blue);font-size:12px;font-weight:750;letter-spacing:.08em}.primary-btn,.outline-btn,.ghost-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:12px;font-size:14px;font-weight:700;min-height:42px;padding:0 18px;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s}.primary-btn{border:1px solid var(--blue);background:var(--blue);color:white;box-shadow:0 6px 15px rgba(8,105,232,.14)}.primary-btn:hover{background:var(--deep);box-shadow:0 9px 20px rgba(8,105,232,.2);transform:translateY(-1px)}.primary-btn:active,.outline-btn:active,.ghost-btn:active{transform:scale(.98)}.outline-btn,.ghost-btn{background:white;color:#315273;border:1px solid #dce4f0}.outline-btn:hover,.ghost-btn:hover{background:#f7faff;border-color:#c9d9f0}.full{width:100%}.form-error{min-height:18px;color:#c53939;font-size:12px;margin:4px 0 7px}.toast{position:fixed;left:50%;bottom:max(24px,env(safe-area-inset-bottom));transform:translate(-50%,15px);opacity:0;background:#172338;color:white;padding:10px 16px;border-radius:11px;font-size:13px;z-index:80;box-shadow:0 12px 30px #0c204033;transition:opacity .2s,transform .2s}.toast.visible{opacity:1;transform:translate(-50%,0)}input,textarea,select{outline:0;color:#1e2c42}input:focus,textarea:focus,select:focus{border-color:#76aaf0!important;box-shadow:0 0 0 3px rgba(8,105,232,.1)}label{font-size:13px;font-weight:650}
/* Share page */
.site-header{height:64px;background:rgba(255,255,255,.9);border-bottom:1px solid #e9eef5;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1040px)/2));backdrop-filter:blur(14px)}.brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:800;text-decoration:none;letter-spacing:-.02em}.brand-mark,.login-mark{width:31px;height:31px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;background:var(--blue);color:white;font-size:15px;font-weight:700}.brand img{width:31px;height:31px;object-fit:cover;border-radius:10px}.header-label{font-size:12px;font-weight:600;color:#8b96a8}.share-shell{max-width:620px;margin:0 auto;padding:34px 20px 80px}.unlock-card{width:min(100%,432px);margin:36px auto 0;padding:33px 30px 28px;border:1px solid #e5eaf2;border-radius:24px;background:var(--card);box-shadow:0 13px 34px rgba(27,54,94,.055);animation:rise .45s both}.unlock-card h1{margin:13px 0 6px;font-size:27px;line-height:1.25}.unlock-card p{font-size:13px;color:var(--muted);margin-bottom:31px}.unlock-card label{display:block;margin-bottom:9px}.input-with-action{display:flex;position:relative}.input-with-action input{width:100%;height:50px;border:1px solid #dce4ee;border-radius:11px;padding:0 75px 0 14px;background:#fafbfe;letter-spacing:.025em}.input-action{position:absolute;right:6px;top:6px;height:38px;padding:0 11px;background:#eff5ff;color:var(--blue);border:0;border-radius:8px;font-size:12px;font-weight:700}.unlock-card .primary-btn{height:48px}.unlock-card small{display:block;margin-top:19px;color:#99a4b3;font-size:11px;text-align:center}.share-hero{padding:14px 2px 24px;animation:rise .36s both}.hero-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.text-button{border:0;background:transparent;color:#7d8a9d;font-size:12px;font-weight:650;padding:7px 0}.text-button:hover{color:var(--blue)}.share-hero h1{color:var(--blue);font-size:31px;line-height:1.2;margin:0 0 10px;font-weight:800}.share-hero p{font-size:14px;color:#6f7d90;margin:0 0 16px}.access-line{display:flex;align-items:center;gap:7px;color:#718198;font-size:12px}.access-dot{width:6px;height:6px;border-radius:50%;background:#1bb57c}.access-line strong{font-weight:700;color:#496684}.module{background:var(--card);border:1px solid #e6ebf3;border-radius:24px;padding:23px 22px;margin-bottom:16px;box-shadow:0 6px 22px rgba(24,53,90,.038);animation:rise .4s both}.module:nth-child(2){animation-delay:.05s}.module:nth-child(3){animation-delay:.1s}.module:nth-child(4){animation-delay:.15s}.module-header{display:flex;align-items:center;gap:10px;margin-bottom:14px}.module-header h2{font-size:18px;margin:0;font-weight:760}.section-index{font-size:11px;font-weight:800;letter-spacing:.08em;color:#96b7e9}.module p{white-space:pre-line;color:#536176;font-size:13px;line-height:1.85;margin:0}.notice-module{border-left:3px solid var(--blue)}.notice-module .module-header{margin-bottom:9px}.guide-image{display:block;width:100%;border:0;padding:0;background:#f5f7fb;border-radius:15px;overflow:hidden;margin-top:16px;position:relative;text-align:center}.guide-image img{display:block;width:100%;height:auto;max-height:560px;object-fit:contain}.guide-image span{position:absolute;right:10px;bottom:10px;color:white;background:rgba(20,33,52,.76);padding:6px 10px;border-radius:8px;font-size:11px}.guide-image:hover img{transform:scale(1.012)}.guide-image img{transition:transform .28s}.count-label{margin-left:auto;color:#8a96a9;font-size:12px;font-weight:700}.plain-module{background:transparent;border:0;box-shadow:none;padding:9px 0 0}.plain-module .module-header{padding:0 2px;margin-bottom:15px}.account-list{display:grid;gap:14px}.account-card{position:relative;padding:22px 22px 18px;border-radius:23px;background:white;border:1px solid #e6ebf4;box-shadow:0 9px 28px rgba(24,53,90,.055);transition:transform .23s ease,box-shadow .23s ease,border-color .23s ease;overflow:hidden}.account-card:hover{transform:translateY(-3px);box-shadow:0 15px 33px rgba(24,53,90,.1);border-color:#cfdef0}.account-card:active{transform:translateY(-1px)}.account-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px;gap:12px}.account-card h3{font-size:15px;margin:0;font-weight:760}.account-badge{font-size:11px;font-weight:700;color:#16845b;background:#eafaf2;border-radius:9px;padding:6px 10px;white-space:nowrap}.credential-row{display:flex;align-items:center;gap:11px;background:#f4f6fa;border-radius:13px;min-height:70px;padding:12px 11px 12px 15px;margin-top:10px}.credential-icon{width:17px;height:17px;flex:none;color:var(--blue)}.credential-main{flex:1;min-width:0}.credential-main small{display:block;color:#8b96a5;font-size:11px;margin-bottom:5px}.credential-main strong{display:block;overflow-wrap:anywhere;font-size:14px;line-height:1.45;font-weight:500;letter-spacing:.005em}.credential-main .mask{letter-spacing:.18em;font-weight:700;color:#68778c}.copy-btn{width:34px;height:34px;display:grid;place-items:center;flex:none;background:var(--blue);color:#fff;border:0;border-radius:9px;transition:transform .2s,background .2s}.copy-btn:hover{background:#005bcf;transform:translateY(-1px)}.copy-btn svg{width:17px;height:17px}.account-note{padding-top:13px;color:#8190a4;font-size:12px;line-height:1.6}.empty-state{padding:30px 18px;text-align:center;color:#94a0b1;background:#fff;border:1px solid var(--line);border-radius:17px;font-size:13px}.faq-list details{border-top:1px solid #edf0f5;padding:13px 0}.faq-list details:first-child{border-top:0}.faq-list summary{font-weight:650;font-size:13px;cursor:pointer;padding-right:22px;position:relative;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:2px;top:-2px;color:#8a96a9;font-size:19px;font-weight:400}.faq-list details[open] summary:after{content:'−'}.faq-list p{margin:10px 0 3px;color:#728096}.site-footer{text-align:center;color:#aab3c1;font-size:11px;padding:22px 0}.support-fab{position:fixed;right:max(20px,calc((100vw - 600px)/2));bottom:max(22px,env(safe-area-inset-bottom));z-index:30;display:flex;align-items:center;gap:8px;background:var(--blue);color:#fff;border:0;border-radius:999px;padding:12px 15px;font-size:13px;font-weight:700;box-shadow:0 11px 26px rgba(8,105,232,.25);transition:transform .2s,box-shadow .2s}.support-fab:hover{transform:translateY(-2px);box-shadow:0 15px 30px rgba(8,105,232,.31)}.chat-icon{width:15px;height:12px;border:2px solid currentColor;border-radius:5px;position:relative}.chat-icon:after{content:'';position:absolute;bottom:-5px;left:2px;width:4px;height:4px;border-left:2px solid currentColor;transform:rotate(35deg)}
/* Shared dialogs and chat */
.overlay{position:fixed;inset:0;background:rgba(16,30,51,.42);backdrop-filter:blur(4px);z-index:50;display:flex;align-items:center;justify-content:center;padding:16px}.support-panel{width:min(100%,430px);height:min(660px,92dvh);background:white;border-radius:22px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 30px 75px rgba(7,22,42,.23)}.panel-top{padding:17px 19px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.panel-top strong{display:block;font-size:16px}.panel-top small{display:block;color:var(--muted);font-size:11px;margin-top:3px}.icon-button{width:32px;height:32px;display:grid;place-items:center;border:0;background:#f1f4f8;color:#758297;border-radius:9px;font-size:21px;font-weight:300}.ticket-list{display:flex;gap:7px;overflow:auto;padding:10px 15px;border-bottom:1px solid #eef1f6;min-height:51px}.ticket-pill{white-space:nowrap;background:#f3f6fa;border:1px solid transparent;border-radius:9px;padding:6px 10px;font-size:11px;color:#65748a}.ticket-pill.active{color:var(--blue);background:#edf5ff;border-color:#cfe3ff}.chat-messages{flex:1;overflow:auto;padding:17px;display:flex;flex-direction:column;gap:11px}.message{align-self:flex-start;max-width:86%;background:#f2f5f9;color:#23334a;padding:10px 12px;border-radius:12px 12px 12px 3px;font-size:13px;line-height:1.6;overflow-wrap:anywhere}.message.own{align-self:flex-end;background:#e8f2ff;color:#1154a1;border-radius:12px 12px 3px 12px}.message small{display:block;font-size:10px;opacity:.6;margin-top:5px}.message img,.message video{max-width:100%;max-height:220px;border-radius:8px;display:block}.chat-empty{margin:auto;color:#96a1b1;text-align:center;font-size:13px;line-height:1.7}.chat-form{padding:12px 15px 15px;border-top:1px solid var(--line)}.chat-form textarea{resize:none;width:100%;border:1px solid #e0e7f1;border-radius:10px;padding:10px 12px;font-size:13px}.chat-actions{display:flex;align-items:center;gap:7px;margin-top:7px}.chat-actions .primary-btn{margin-left:auto;min-height:34px;font-size:12px}.upload-control{font-size:11px;color:var(--blue);cursor:pointer;font-weight:700}.chat-actions span{font-size:10px;color:#8a96a8;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.image-overlay{position:fixed;inset:0;background:#101721;z-index:70;display:flex;flex-direction:column}.image-bar{height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 19px;background:#202b3c;color:white;font-size:13px}.image-bar button{background:#36455a;border:0;border-radius:7px;color:white;padding:6px 12px}.image-overlay img{min-height:0;max-width:100%;max-height:calc(100dvh - 54px);object-fit:contain;margin:auto;overflow:auto}
/* Admin */
.login-shell{min-height:100dvh;display:grid;place-items:center;padding:25px}.login-card{width:min(100%,410px);background:white;border:1px solid #e6ebf3;border-radius:23px;padding:35px 33px;box-shadow:0 15px 42px rgba(26,50,80,.065)}.login-mark{width:38px;height:38px;margin-bottom:24px}.login-card h1{font-size:27px;margin:8px 0 7px}.login-card p{font-size:13px;color:var(--muted);margin-bottom:29px}.login-card label{display:block;margin:15px 0}.login-card input{display:block;margin-top:8px;width:100%;height:46px;border:1px solid #dce4ee;background:#fafbfe;border-radius:10px;padding:0 13px}.admin-layout{min-height:100dvh;display:grid;grid-template-columns:235px 1fr}.admin-sidebar{background:white;border-right:1px solid var(--line);padding:26px 16px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100dvh}.admin-brand{display:flex;align-items:center;gap:10px;margin:1px 10px 42px}.admin-brand strong{font-size:15px;display:block}.admin-brand small{color:#9aa5b3;font-size:10px}.admin-nav{display:grid;gap:5px}.admin-nav button{height:43px;text-align:left;border:0;border-radius:11px;padding:0 15px;color:#66758a;background:transparent;font-size:13px;font-weight:650}.admin-nav button:hover{background:#f5f8fc}.admin-nav button.active{color:var(--blue);background:#edf5ff}.sidebar-bottom{margin-top:auto;padding:13px 11px;border-top:1px solid var(--line);display:grid;gap:12px}.sidebar-bottom a,.sidebar-bottom button{font-size:12px;color:#6d7c91;text-decoration:none;background:none;border:0;text-align:left;padding:0;font-weight:600}.sidebar-bottom a:hover,.sidebar-bottom button:hover{color:var(--blue)}.admin-main{padding:28px 34px 65px;max-width:1250px;width:100%;margin:0 auto}.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.admin-header h1{font-size:28px;margin:5px 0 0}.admin-header .outline-btn{min-height:36px;font-size:12px}.admin-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.stat-card,.admin-card{background:#fff;border:1px solid #e6ebf3;border-radius:20px;box-shadow:0 5px 19px rgba(31,57,91,.035)}.stat-card{padding:21px}.stat-card small{font-size:12px;color:#8895a8}.stat-card strong{display:block;color:var(--blue);font-size:29px;line-height:1.2;margin:9px 0 0;letter-spacing:-.04em}.admin-card{padding:23px;margin-bottom:17px}.admin-card h2{font-size:17px;margin:0 0 6px}.admin-card p.card-help{font-size:12px;color:#8d99aa;margin:0 0 20px}.admin-section-head{display:flex;align-items:center;justify-content:space-between;margin:26px 0 13px;gap:12px}.admin-section-head h2{font-size:17px;margin:0}.admin-section-head .primary-btn{min-height:36px;font-size:12px}.admin-table{width:100%;border-collapse:collapse;text-align:left}.admin-table th{font-size:11px;font-weight:650;color:#99a5b5;padding:12px 9px;border-bottom:1px solid #ecf0f5;white-space:nowrap}.admin-table td{font-size:12px;padding:14px 9px;border-bottom:1px solid #f0f3f7;color:#516077;vertical-align:middle}.admin-table td strong{display:block;color:#1f2c3e;font-size:13px}.admin-table td small{display:block;color:#96a3b3;margin-top:3px}.admin-table tr:last-child td{border-bottom:0}.table-wrap{overflow:auto}.badge{display:inline-flex;border-radius:7px;padding:5px 8px;font-size:10px;font-weight:700;white-space:nowrap}.badge.normal,.badge.open{color:#168158;background:#e9f8f0}.badge.warning{color:#a46a0e;background:#fff5dc}.badge.error,.badge.closed{color:#bf4950;background:#fff0f0}.badge.unknown{color:#67768b;background:#f0f3f8}.table-actions{display:flex;gap:5px;white-space:nowrap}.mini-button{border:1px solid #dfe6f0;color:#42658b;background:white;border-radius:8px;padding:6px 9px;font-size:11px;font-weight:650}.mini-button:hover{color:var(--blue);border-color:#accdf8}.mini-button.danger{color:#ba4f56}.code-text{font-family:ui-monospace,Menlo,monospace;color:#284a71!important;letter-spacing:.02em}.stack{display:grid;gap:13px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.form-field{display:block;font-size:12px;color:#536378;font-weight:650}.form-field input,.form-field textarea,.form-field select{display:block;width:100%;margin-top:7px;border:1px solid #dfe6f0;border-radius:10px;background:#fbfcff;padding:10px 11px;font-size:13px;min-height:40px}.form-field textarea{resize:vertical;min-height:80px;line-height:1.6}.form-field.full-row{grid-column:1/-1}.form-hint{font-size:11px;color:#98a4b4;font-weight:400;margin-top:5px;line-height:1.5}.form-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:20px}.switch-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;font-weight:650}.switch-row input{accent-color:var(--blue)}.module-sort{display:grid;gap:8px}.sort-row{display:flex;align-items:center;gap:11px;background:#f7f9fc;border:1px solid #e8edf5;border-radius:10px;padding:10px 12px;font-size:13px;font-weight:650}.sort-row span{flex:1}.sort-row button{border:0;background:white;color:#5f728c;border-radius:6px;padding:5px 9px}.faq-editor{display:grid;gap:10px}.faq-row{display:grid;grid-template-columns:1fr 1.5fr auto;gap:8px;align-items:start}.faq-row input,.faq-row textarea{width:100%;border:1px solid #dfe6f0;border-radius:9px;background:#fbfcff;padding:9px;font-size:12px}.faq-row textarea{min-height:40px}.faq-row button{border:0;background:#fff0f0;color:#bd5058;border-radius:8px;padding:9px;font-size:11px}.upload-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.upload-row input{max-width:220px;font-size:11px}.upload-row img{max-width:110px;max-height:70px;object-fit:contain;border-radius:7px;background:#f5f7fa}.admin-dialog{width:min(100%,700px);max-height:90dvh;overflow:auto;background:white;border-radius:21px;box-shadow:0 30px 75px rgba(7,22,42,.2)}.dialog-head{position:sticky;top:0;z-index:2;background:white;border-bottom:1px solid var(--line);padding:17px 21px;display:flex;align-items:center;justify-content:space-between}.dialog-head h2{margin:0;font-size:18px}.dialog-content{padding:22px}.security-list{display:grid;gap:12px}.security-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.ticket-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:15px}.ticket-side{max-height:600px;overflow:auto}.ticket-side button{display:block;width:100%;padding:12px 10px;text-align:left;border:0;border-bottom:1px solid #edf0f5;background:white;font-size:12px;color:#536378}.ticket-side button.active{background:#edf5ff;color:var(--blue);border-radius:9px}.ticket-side small{display:block;margin-top:5px;color:#9aa5b3}.admin-chat{height:550px;display:flex;flex-direction:column}.admin-chat .chat-messages{background:#fbfcff;border:1px solid #edf1f6;border-radius:11px;min-height:0}.admin-chat .chat-form{padding-left:0;padding-right:0}.guide-preview{display:block;width:100%;max-height:420px;object-fit:contain;border-radius:11px;background:#f5f7fa;margin-top:10px}.muted{color:#9aa5b3;font-size:12px}.notice-box{padding:13px 15px;background:#edf5ff;color:#3d6b9b;border-radius:11px;font-size:12px;line-height:1.6}.empty-admin{color:#9aa5b3;font-size:13px;padding:25px;text-align:center}.admin-mobile-nav{display:none}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:760px){.admin-layout{display:block}.admin-sidebar{height:auto;position:sticky;z-index:20;top:0;border-right:0;border-bottom:1px solid var(--line);padding:9px 14px 0}.admin-brand{margin:2px 2px 9px}.admin-brand .brand-mark{width:28px;height:28px}.admin-brand strong{font-size:13px}.admin-nav{display:flex;overflow:auto;gap:2px;margin:0 -6px;padding:0 4px}.admin-nav button{flex:none;height:37px;padding:0 10px;font-size:11px;border-radius:8px 8px 0 0}.sidebar-bottom{display:none}.admin-main{padding:20px 15px 85px}.admin-header{margin-bottom:17px}.admin-header h1{font-size:23px}.admin-header .outline-btn{font-size:10px;padding:0 10px}.admin-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.stat-card{padding:14px 10px;border-radius:14px}.stat-card small{font-size:10px}.stat-card strong{font-size:22px}.admin-card{padding:16px;border-radius:16px}.ticket-layout{grid-template-columns:1fr}.ticket-side{display:flex;gap:5px;max-height:none;overflow:auto}.ticket-side button{min-width:130px}.faq-row{grid-template-columns:1fr}.security-row{grid-template-columns:1fr}.dialog-content{padding:17px}.form-grid{grid-template-columns:1fr}.form-field.full-row{grid-column:1}.admin-table th,.admin-table td{padding:10px 7px}.admin-dialog{max-height:94dvh}.overlay{padding:9px}}
@media(max-width:600px){.site-header{height:55px;padding:0 20px}.share-shell{padding:23px 15px 75px}.unlock-card{margin:35px auto 0;padding:30px 22px}.unlock-card h1{font-size:25px}.share-hero{padding:8px 3px 22px}.share-hero h1{font-size:28px}.module{border-radius:22px;padding:21px 19px}.plain-module{padding:8px 0 0}.account-card{border-radius:21px;padding:19px 19px 17px}.credential-row{min-height:68px}.support-fab{right:16px;bottom:max(17px,env(safe-area-inset-bottom))}.support-panel{height:min(740px,97dvh);border-radius:18px}.image-overlay img{max-width:none;max-height:none;width:auto;height:auto;max-width:100%;max-height:calc(100dvh - 54px)}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}