:root{--red:#c0392b;--red-light:#fdecea;--red-mid:#e8746a;--ink:#1a1a1a;--ink-2:#444;--ink-3:#888;--paper:#fafaf8;--paper-2:#f2f1ed;--paper-3:#e8e6df;--white:#fff;--green:#1d7a55;--green-light:#e3f4ec;--serif:"Noto Serif SC", serif;--sans:"Noto Sans SC", sans-serif;--mono:"DM Mono", monospace;--radius:10px;--radius-sm:6px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--sans);background:var(--paper);color:var(--ink);flex-direction:column;min-height:100vh;font-size:15px;line-height:1.7;display:flex}.en-only{display:none}.zh-only,body.lang-en .en-only{display:block}body.lang-en .zh-only{display:none}.page-hero{background:var(--ink);color:#fff;text-align:center;padding:52px 40px 48px}.page-hero .eyebrow{font-family:var(--mono);letter-spacing:.12em;color:var(--red-mid);text-transform:uppercase;justify-content:center;align-items:center;gap:8px;margin-bottom:16px;font-size:11px;display:flex}.page-hero .eyebrow:before,.page-hero .eyebrow:after{content:"";background:var(--red-mid);width:20px;height:1px;display:block}.page-hero h1{font-family:var(--serif);margin-bottom:12px;font-size:34px;font-weight:300;line-height:1.35}.page-hero h1 em{color:var(--red-mid);font-style:normal}.page-hero p{color:#ffffff8c;max-width:560px;margin:0 auto;font-size:14px;line-height:1.8}.page-main{flex:1;width:100%;max-width:980px;margin:0 auto;padding:48px 40px}.rules-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px;display:grid}.rule-card{background:var(--white);border:1px solid var(--paper-3);border-radius:var(--radius);padding:22px 22px 20px;transition:border-color .15s,transform .15s;position:relative}.rule-card:hover{border-color:var(--ink);transform:translateY(-2px)}.rule-card-head{align-items:flex-start;gap:12px;margin-bottom:12px;display:flex}.rule-icon{border-radius:var(--radius-sm);background:var(--paper-2);flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex}.rule-title{font-family:var(--serif);color:var(--ink);font-size:17px;font-weight:500;line-height:1.4}.rule-title-en{font-size:11px;font-family:var(--mono);color:var(--ink-3);letter-spacing:.04em;margin-top:3px}.rule-summary{color:var(--ink-2);margin-bottom:12px;font-size:13px;line-height:1.75}.rule-points{flex-direction:column;gap:6px;margin-bottom:12px;list-style:none;display:flex}.rule-points li{color:var(--ink-2);padding-left:14px;font-size:12.5px;line-height:1.7;position:relative}.rule-points li:before{content:"·";color:var(--red-mid);font-weight:700;position:absolute;left:4px}.rule-points li.tip{background:var(--red-light);color:var(--red);border-radius:6px;margin:0 -2px 4px;padding:8px 12px 8px 22px;font-weight:500}.rule-points li.tip:before{content:"⭐";font-size:11px;top:8px;left:6px}.rule-tip{color:var(--ink-3);background:var(--paper-2);border-radius:var(--radius-sm);border-left:2px solid var(--red-mid);padding:9px 12px;font-size:11.5px;line-height:1.7}.jobs-section{margin-bottom:40px}.jobs-section:last-child{margin-bottom:0}.jobs-section-head{border-bottom:1px solid var(--paper-3);align-items:flex-start;gap:12px;margin-bottom:18px;padding-bottom:14px;display:flex}.jobs-section-icon{border-radius:var(--radius-sm);background:var(--paper-2);flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;font-size:19px;display:flex}.jobs-section-title{font-family:var(--serif);color:var(--ink);font-size:20px;font-weight:500;line-height:1.35}.jobs-section-desc{color:var(--ink-3);margin-top:2px;font-size:12.5px;line-height:1.6}.links-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;display:grid}.link-card{background:var(--white);border:1px solid var(--paper-3);border-radius:var(--radius);padding:16px 18px;text-decoration:none;transition:border-color .15s,transform .15s,box-shadow .15s;display:block}.link-card:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:0 6px 18px #1a1a1a0f}.link-card-top{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.link-name{color:var(--ink);font-size:15px;font-weight:600;line-height:1.4}.link-card:hover .link-name{color:var(--red)}.link-arrow{font-family:var(--mono);color:var(--ink-3);flex-shrink:0;font-size:13px;transition:transform .15s}.link-card:hover .link-arrow{color:var(--red);transform:translate(2px,-2px)}.link-domain{font-family:var(--mono);color:var(--ink-3);letter-spacing:.02em;margin-top:3px;font-size:11px}.link-desc{color:var(--ink-2);margin-top:10px;font-size:12.5px;line-height:1.65}.jobs-note{color:var(--ink-3);background:var(--paper-2);border-radius:var(--radius-sm);border-left:2px solid var(--red-mid);margin-top:8px;padding:12px 14px;font-size:11.5px;line-height:1.7}.about-body{max-width:680px;margin:0 auto}.about-body h2{font-family:var(--serif);color:var(--ink);letter-spacing:.01em;margin:36px 0 14px;font-size:22px;font-weight:500}.about-body h2:first-child{margin-top:0}.about-body p{color:var(--ink-2);margin-bottom:14px;font-size:14.5px;line-height:1.9}.about-body a{color:var(--red);border-bottom:1px solid #c0392b4d;text-decoration:none}.about-body a:hover{border-bottom-color:var(--red)}.about-body ul{margin:10px 0 18px;padding-left:0;list-style:none}.about-body ul li{color:var(--ink-2);border-bottom:1px dashed var(--paper-3);padding:8px 0 8px 18px;font-size:14px;position:relative}.about-body ul li:last-child{border-bottom:none}.about-body ul li:before{content:"▸";color:var(--red-mid);font-size:11px;position:absolute;top:11px;left:0}.about-cta{background:var(--ink);color:#fff;border-radius:var(--radius);justify-content:space-between;align-items:center;gap:20px;margin-top:36px;padding:24px;display:flex}.about-cta .cta-text{font-size:14px;line-height:1.7}.about-cta .cta-text strong{color:var(--red-mid);font-weight:500}.about-cta a{background:var(--white);color:var(--ink);border-radius:var(--radius-sm);white-space:nowrap;padding:10px 18px;font-size:13px;text-decoration:none;transition:all .15s}.about-cta a:hover{background:var(--red);color:#fff}footer{background:var(--paper-2);border-top:1px solid var(--paper-3);color:var(--ink-3);font-size:12px;font-family:var(--mono);justify-content:space-between;align-items:center;padding:24px 40px;display:flex}footer a{color:var(--ink-3);text-decoration:none}footer a:hover{color:var(--ink)}@media (width<=768px){.page-hero{padding:40px 20px 36px}.page-hero h1{font-size:26px}.page-main{padding:32px 20px}.rules-grid{grid-template-columns:1fr;gap:14px}.links-grid{grid-template-columns:1fr;gap:12px}.about-cta{flex-direction:column;align-items:flex-start}footer{text-align:center;flex-direction:column;gap:10px}}