:root,[data-theme=light]{--color-bg-base: #ffffff;--color-bg-container: #f5f5f5;--color-bg-elevated: #ffffff;--color-text-base: #000000d9;--color-text-secondary: #00000073;--color-border: #d9d9d9;--color-primary: #1677ff;--color-primary-hover: #4096ff;--color-shadow: rgba(0, 0, 0, .08)}[data-theme=dark]{--color-bg-base: #141414;--color-bg-container: #1f1f1f;--color-bg-elevated: #2a2a2a;--color-text-base: #ffffffd9;--color-text-secondary: #ffffff73;--color-border: #303030;--color-primary: #1668dc;--color-primary-hover: #4096ff;--color-shadow: rgba(0, 0, 0, .45)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background-color:var(--color-bg-base);color:var(--color-text-base);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;transition:background-color .3s ease,color .3s ease}.co-page{max-width:1080px;margin:0 auto;padding:48px 24px}.co-page__hero{text-align:center;padding:32px 0 48px}.co-page__hero h1{margin:0 0 12px;font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.15;color:var(--color-text-base)}.co-page__hero p{margin:0 auto;max-width:720px;color:var(--color-text-secondary);font-size:clamp(16px,1.6vw,18px);line-height:1.6}.co-section-title{font-size:clamp(22px,3vw,30px);font-weight:700;margin:0 0 24px;color:var(--color-text-base)}.co-card{background-color:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:12px;padding:24px;box-shadow:0 1px 3px var(--color-shadow);transition:background-color .3s ease,border-color .3s ease,transform .2s ease,box-shadow .2s ease}.co-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--color-shadow);border-color:var(--color-primary)}.co-btn{display:inline-block;padding:12px 24px;border-radius:8px;font-weight:600;font-size:15px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background-color .2s ease,border-color .2s ease,color .2s ease}.co-btn--primary{background-color:var(--color-primary);color:#fff}.co-btn--primary:hover{background-color:var(--color-primary-hover)}.co-btn--ghost{background-color:transparent;border-color:var(--color-border);color:var(--color-text-base)}.co-btn--ghost:hover{border-color:var(--color-primary);color:var(--color-primary)}.co-grid{display:grid;gap:24px}.co-grid--3{grid-template-columns:repeat(3,1fr)}.co-grid--2{grid-template-columns:repeat(2,1fr)}@media(max-width:900px){.co-grid--3{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.co-page{padding:32px 16px}.co-grid--2,.co-grid--3{grid-template-columns:1fr}}