:root{--bg:#f4fbf8;--surface:#fff;--mint:#bfefe2;--mint-2:#cff3ea;--mint-soft:#e6f5f0;--line:#d3ebe3;--line-strong:#a9dccd;--ink:#0e2a24;--ink-deep:#04251a;--ink-2:#2e4a43;--muted:#557068;--brand:#0e8c78;--brand-dark:#0b6b5c;--cream:#f3e07c;--cream-soft:#f4ecc8;--cream-line:#e6dba8;--highlight:#ffe43a;--radius:3px;--shadow:0 4px 14px #0e8c781f;--serif:"Noto Serif SC", "Songti SC", "STSong", serif;--sans:"Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--latin:"Fraunces", Georgia, serif;--max:1200px;--gutter:40px;--tabbar-h:0px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--ink);font-family:var(--sans);padding-bottom:var(--tabbar-h);margin:0;font-size:18px;line-height:1.75}a{color:var(--brand)}a:hover{opacity:.85}h1,h2,h3{font-family:var(--serif);color:var(--ink);margin:0;line-height:1.3}p{margin:0}img{max-width:100%;display:block}.wrap{max-width:var(--max);padding:0 var(--gutter);margin:0 auto}.section{padding:56px 0}.section-alt{background:var(--mint-soft)}.section-head{flex-wrap:wrap;align-items:baseline;gap:16px;margin-bottom:24px;display:flex}.section-head h2{font-size:34px}.section-head span{color:var(--muted);font-size:18px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}.card-raised{box-shadow:var(--shadow)}.btn{font-family:var(--sans);border-radius:var(--radius);cursor:pointer;border:2px solid #0000;justify-content:center;align-items:center;gap:6px;min-height:52px;padding:14px 24px;font-size:18px;font-weight:700;line-height:1.2;text-decoration:none;display:inline-flex}.btn-primary{background:var(--cream);color:var(--ink-deep);font-weight:900}.btn-outline{background:var(--surface);color:var(--ink);border-color:var(--ink)}.btn-brand{background:var(--brand);color:#fff}.btn-lg{padding:18px 34px;font-size:22px}.btn[aria-disabled=true],.btn:disabled{opacity:.55;cursor:default}.seal{border-radius:var(--radius);background:var(--brand);color:#fff;text-align:center;width:50px;height:50px;font-family:var(--serif);flex-shrink:0;justify-content:center;align-items:center;font-size:15px;font-weight:900;line-height:1.1;display:flex}.site-header{background:var(--surface);border-bottom:1px solid var(--line);z-index:50;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:20px;min-height:80px;display:flex}.brand{color:var(--ink);white-space:nowrap;align-items:center;gap:12px;text-decoration:none;display:flex}.brand-text{flex-direction:column;line-height:1.2;display:flex}.brand-name{font-family:var(--serif);letter-spacing:2px;font-size:26px;font-weight:900}.brand-en{font-family:var(--latin);color:var(--muted);letter-spacing:2px;font-size:13px}.nav{align-items:center;gap:4px;display:flex}.nav-group{position:relative}.nav-top{color:var(--ink);border-radius:var(--radius);white-space:nowrap;padding:10px 12px;font-size:18px;font-weight:700;text-decoration:none;display:block}.nav-group:hover .nav-top,.nav-group:focus-within .nav-top,.nav-top.active{background:var(--mint-soft);color:var(--brand-dark)}.nav-drop{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--brand);border-radius:var(--radius);min-width:220px;box-shadow:var(--shadow);visibility:hidden;opacity:0;margin:0;padding:8px;list-style:none;transition:opacity .15s,transform .15s,visibility .15s;position:absolute;top:100%;left:0;transform:translateY(4px)}.nav-group:hover .nav-drop,.nav-group:focus-within .nav-drop{visibility:visible;opacity:1;transform:none}.nav-drop a{color:var(--ink-2);border-radius:var(--radius);white-space:nowrap;padding:8px 12px;font-size:17px;text-decoration:none;display:block}.nav-drop a:hover{background:var(--mint-soft);color:var(--ink);opacity:1}.header-tools{white-space:nowrap;align-items:center;gap:10px;display:flex}.tool-btn{font-family:var(--sans);border:1px solid var(--line);color:var(--ink);border-radius:var(--radius);cursor:pointer;background:0 0;min-height:40px;padding:8px 12px;font-size:16px}.install-btn{background:var(--cream);color:var(--ink-deep);border:0;padding:10px 16px;font-weight:900}.menu-btn{display:none}.activity-bar{background:var(--cream-soft);border-bottom:1px solid var(--cream-line)}.activity-inner{flex-wrap:wrap;align-items:center;gap:16px;padding-top:10px;padding-bottom:10px;display:flex}.tag{background:var(--brand);color:#fff;border-radius:var(--radius);padding:3px 10px;font-size:14px;font-weight:900}.drawer-mask{z-index:90;background:#04251a59;position:fixed;inset:0}.drawer{background:var(--surface);z-index:100;width:min(88vw,380px);box-shadow:var(--shadow);padding:16px 20px 40px;position:fixed;top:0;bottom:0;right:0;overflow-y:auto}.drawer-head{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.drawer details{border-bottom:1px solid var(--line)}.drawer summary{cursor:pointer;justify-content:space-between;padding:14px 0;font-size:20px;font-weight:700;list-style:none;display:flex}.drawer summary::-webkit-details-marker{display:none}.drawer summary:after{content:"＋";color:var(--brand)}.drawer details[open] summary:after{content:"－"}.drawer details a{color:var(--ink-2);padding:10px 12px;font-size:18px;text-decoration:none;display:block}.tabbar{display:none}.hero{background:var(--mint)}.hero-inner{grid-template-columns:1.15fr 1fr;align-items:center;gap:48px;padding-top:56px;padding-bottom:56px;display:grid}.hero h1{color:var(--ink-deep);font-size:48px;font-weight:900}.hero h1 mark{background:var(--highlight);color:inherit;padding:0 6px}.hero-identity{color:var(--ink-deep);margin:20px 0 28px;font-size:20px}.hero-actions{flex-wrap:wrap;gap:14px;display:flex}.form-card{background:var(--surface);border:1px solid var(--line-strong);border-top:4px solid var(--brand);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}.form-card h2,.form-card h3{margin-bottom:6px;font-size:28px}.form-card .lead{color:var(--ink-2);margin-bottom:16px}.field{flex-direction:column;gap:6px;margin-bottom:14px;display:flex}.field label{font-weight:700}.input{font-family:var(--sans);border:2px solid var(--line-strong);border-radius:var(--radius);color:var(--ink);background:#fff;width:100%;min-height:54px;padding:14px;font-size:19px}.input:focus{border-color:var(--brand);outline:none}.check{color:var(--ink-2);cursor:pointer;align-items:flex-start;gap:10px;margin-bottom:14px;font-size:17px;display:flex}.check input{width:22px;height:22px;accent-color:var(--brand);flex-shrink:0;margin-top:4px}.form-note{color:var(--muted);margin-top:10px;font-size:15px}.form-msg{border-radius:var(--radius);margin-top:12px;padding:12px 14px;font-weight:700}.form-msg.ok{background:var(--mint-soft);color:var(--brand-dark)}.form-msg.err{color:#8a3b2b;background:#fbeeea}.channels{flex-direction:column;align-items:stretch;gap:20px;display:flex}.channels-title{flex-wrap:wrap;align-items:baseline;gap:14px;display:flex}.channels-title strong{font-family:var(--serif);font-size:26px}.channels-title span{color:var(--muted);font-size:16px}.channel-list{grid-template-columns:repeat(6,minmax(0,1fr));gap:16px;display:grid}.channel{color:var(--ink);flex-direction:column;align-items:center;gap:6px;font-size:16px;font-weight:700;text-decoration:none;display:flex}.channel-mark{border-radius:var(--radius);background:var(--brand);color:#fff;justify-content:center;align-items:center;width:54px;height:54px;font-size:20px;font-weight:900;display:flex}.channel.pending .channel-mark{background:var(--line-strong)}.channel small{color:var(--muted);font-size:15px;font-weight:400}.stats{grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.stat{text-align:center;padding:6px 16px}.stat+.stat{border-left:1px solid var(--line)}.stat b{font-family:var(--serif);color:var(--brand);font-size:38px;line-height:1.2;display:block}.stat span{color:var(--ink-2)}.tiers{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;display:grid}.tier{flex-direction:column;gap:12px;display:flex}.tier h3{font-size:24px}.tier .price{color:var(--ink);font-size:30px;font-weight:900}.tier .price small{color:var(--muted);font-size:16px;font-weight:400}.tier .btn{margin-top:auto}.grid-2{grid-template-columns:1fr 1fr;gap:24px;display:grid}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.pillar h3{color:var(--brand);font-size:32px}.page-head{background:var(--mint-soft);border-bottom:1px solid var(--line)}.page-head .wrap{padding-top:40px;padding-bottom:32px}.page-head h1{font-size:38px}.page-head p{color:var(--muted);margin-top:8px}.prose{max-width:820px}.prose h2{margin:36px 0 12px;font-size:26px}.prose p{color:var(--ink-2);margin:0 0 14px}.risk-box{background:var(--cream-soft);border:1px solid var(--cream-line);border-radius:var(--radius);color:var(--ink-deep);padding:14px 18px}.site-footer{background:var(--ink);color:#d7ebe4;margin-top:0}.site-footer a{color:#fff;text-decoration:none}.footer-grid{grid-template-columns:1.4fr 1fr;gap:40px;padding-top:48px;padding-bottom:28px;display:grid}.footer-about{color:#c5ddd5;font-size:16px;line-height:1.8}.footer-links{flex-wrap:wrap;align-content:flex-start;gap:10px 22px;display:flex}.footer-links a{font-size:17px}.footer-bottom{color:#c5ddd5;border-top:1px solid #ffffff26;padding-top:20px;padding-bottom:28px;font-size:16px}.footer-risk{color:#fff;margin-bottom:6px;font-weight:700}@media (max-width:1080px){.nav,.header-tools .hide-mobile{display:none}.menu-btn{display:inline-flex}.hero-inner{grid-template-columns:1fr}.tiers{grid-template-columns:repeat(2,minmax(0,1fr))}.channel-list{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:760px){:root{--gutter:16px;--tabbar-h:68px}.header-inner{min-height:64px}.brand-name{font-size:22px}.seal{width:42px;height:42px;font-size:13px}.section{padding:40px 0}.section-head h2{font-size:28px}.hero-inner{gap:28px;padding-top:36px;padding-bottom:36px}.hero h1{font-size:34px}.hero-identity{font-size:18px}.hero-actions .btn{flex:100%}.grid-2,.grid-3,.footer-grid,.tiers,.stats{grid-template-columns:1fr}.stat+.stat{border-left:0;border-top:1px solid var(--line);margin-top:6px;padding-top:12px}.page-head h1{font-size:30px}.tabbar{z-index:60;height:calc(var(--tabbar-h) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--surface);border-top:1px solid var(--line);grid-template-columns:repeat(5,1fr);display:grid;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 10px #0e8c7814}.tab{color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:2px;font-size:15px;font-weight:700;text-decoration:none;display:flex}.tab svg{width:26px;height:26px}.tab.active{color:var(--brand)}}.channel{text-align:center;line-height:1.4}.channel small{display:block}.copy-btn{min-height:36px;margin-top:2px;padding:4px 10px;font-size:15px}@media (max-width:760px){.channel-list{grid-template-columns:repeat(2,1fr);gap:18px 12px}}