:root{--bg:#f5f8fc;--surface:#fff;--surface-2:#f9fbfe;--text:#162033;--muted:#6f7b8c;--line:#dde7f2;--blue:#248bd2;--blue-dark:#126da9;--blue-soft:#e9f4fd;--shadow:0 16px 42px rgba(22,56,92,.08);--wrap:920px;--radius:26px}body{background:var(--bg)}.article-hero{background:linear-gradient(180deg,#258bd1 0,#258bd1 190px,var(--bg) 190px,var(--bg) 100%);padding:34px 0 20px}.article-hero-inner{max-width:920px;margin-inline:auto;background:#fff;border:1px solid rgba(255,255,255,.86);border-radius:30px;box-shadow:var(--shadow);padding:40px 46px;text-align:center}.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;align-items:center;justify-content:center;color:var(--muted);font-size:14px;margin-bottom:16px}.breadcrumb a{color:var(--blue-dark);font-weight:900}.article-hero h1{margin:0 auto;max-width:780px;font-size:clamp(30px,4.2vw,46px);line-height:1.16;letter-spacing:-.045em}.hero-meta{margin-top:18px;color:#7f8b9c;justify-content:center}.article-content{max-width:920px;background:#fff;border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow);padding:36px 46px;margin-top:14px;margin-bottom:42px}.article-cover{margin:0 0 28px;border-radius:24px;overflow:hidden;background:#eef5fc;border:1px solid rgba(30,96,160,.08);aspect-ratio:16/9}.article-cover img{display:block;width:100%;height:100%;object-fit:cover}.article-body{color:#253044;font-size:17px;line-height:1.9}.article-body p{margin:0 0 18px}.article-body h2,.article-body h3{line-height:1.32;letter-spacing:-.025em;margin:30px 0 14px}.article-body h2{font-size:26px}.article-body h3{font-size:22px}.article-body img{display:block;width:auto;max-width:100%;height:auto;margin:22px auto;border-radius:18px;border:1px solid var(--line);box-shadow:0 10px 28px rgba(22,56,92,.08)}.article-body a{color:var(--blue-dark);font-weight:900}.article-body ul,.article-body ol{padding-left:1.35em}.article-tags{border-top:1px solid var(--line);margin-top:28px;padding-top:22px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}.article-tags strong{margin-right:4px}.tag{display:inline-flex;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);padding:6px 12px;font-size:13px;font-weight:900}.comments-wrap{max-width:920px;background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:28px 34px;margin-bottom:42px}@media (max-width:640px){.article-hero{padding:24px 0 18px;background:linear-gradient(180deg,#258bd1 0,#258bd1 150px,var(--bg) 150px,var(--bg) 100%)}.article-hero-inner{padding:26px 22px;border-radius:24px}.article-content{padding:24px 22px;border-radius:24px}.article-cover{border-radius:18px;margin-bottom:20px}.article-body{font-size:16px;line-height:1.82}.comments-wrap{padding:22px}}