/* Second batch redesign: shared shell and approved homepage. */
:root{--bg:#f7f9fa;--surface:#fff;--ink:#183640;--muted:#4d646d;--accent:#126b83;--accent-dark:#0c5368;--hero:#153e4c;--border:#d9e4e8;--dark:#153e4c}
body{background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif;line-height:1.7}
.site-header{background:#fff;border-color:#e2eaed}
.primary-nav a{font-size:14px}
.primary-nav .nav-register{background:var(--accent);border-radius:6px}
.button{border-radius:6px;min-height:44px}
.site-footer{background:#eaf1f3;color:var(--ink)}
.footer-top p,.footer-top a,.footer-top button,.footer-bottom{color:var(--muted)}
.footer-top a:hover,.footer-top button:hover{color:var(--accent)}
.footer-bottom{border-color:#cbdde2}
.footer-bottom a{color:var(--muted)}
.contact-dialog,.image-dialog{border-radius:8px}
.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}
.r-hero{background:var(--hero);color:#fff}
.r-hero-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:4.5%;min-height:500px;align-items:center;padding-top:36px;padding-bottom:36px}
.r-hero-copy{max-width:540px}
.r-kicker{font-size:14px;font-weight:700;letter-spacing:.02em;color:#c8e1e9;margin:0 0 17px}
.r-hero h1{font:700 clamp(39px,3.4vw,48px)/1.3 "Microsoft YaHei","PingFang SC",sans-serif;letter-spacing:-.035em;margin:0 0 20px}
.r-hero-copy>p:not(.r-kicker){font-size:17px;line-height:1.75;color:#e0eef2;margin:0 0 30px}
.r-hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.r-button{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;min-height:46px;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#fff;text-decoration:none;font-size:15px;font-weight:700;padding:9px 20px}
.r-button:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.r-button-white{background:#fff;color:var(--hero);border-color:#fff}.r-button-white:hover{background:#e8f4f7;border-color:#e8f4f7;color:var(--hero)}
.r-text-link{color:#fff;font-weight:700;text-decoration:underline;text-underline-offset:6px}
.r-hero-visual{margin:0;background:#fff;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.r-hero-visual img{display:block;width:100%;height:auto;object-fit:contain}
.r-section{padding-top:68px;padding-bottom:68px}
.r-section h2{font:700 32px/1.35 "Microsoft YaHei","PingFang SC",sans-serif;letter-spacing:-.025em;margin:0 0 12px}
.r-section p{margin:0;color:var(--muted)}
.r-heading{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:27px}
.r-inline-link{color:var(--accent);font-weight:700;font-size:14px;text-decoration:none;white-space:nowrap}
.r-inline-link:hover{text-decoration:underline}
.r-catalog-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.r-product{display:flex;flex-direction:column;min-height:182px;padding:18px 18px 14px;background:#fff;border:1px solid #dce7eb;border-radius:8px;text-decoration:none;transition:border-color .2s,transform .2s}
.r-product:hover{border-color:var(--accent);transform:translateY(-2px)}
.r-product-id{font:700 27px/1.2 "Microsoft YaHei","PingFang SC",sans-serif;color:var(--accent);margin-bottom:12px}
.r-product strong{font-size:17px;line-height:1.35}
.r-product-type{font-size:13px;color:var(--muted);margin:7px 0 auto}
.r-product-bottom{display:flex;justify-content:space-between;align-items:baseline;gap:5px;border-top:1px solid var(--border);padding-top:10px;margin-top:17px;color:var(--muted);font-size:12px}
.r-product-bottom b{color:var(--accent);font:700 15px/1.2 ui-monospace,"Microsoft YaHei",sans-serif;white-space:nowrap}
.r-access{background:#eaf1f3}
.r-access-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:10%}
.r-access-grid>div:first-child p{max-width:330px}
.r-access-list{border-top:1px solid #bdd1d8}
.r-access-list>div{display:grid;grid-template-columns:170px 1fr;gap:28px;padding:18px 0;border-bottom:1px solid #bdd1d8}
.r-access-list strong{font-size:16px}.r-access-list p{font-size:15px}.r-access-list b{color:var(--ink)}
.r-guide{display:grid;grid-template-columns:1fr .75fr;gap:12%;align-items:center}
.r-guide p{max-width:540px;margin-bottom:27px}
.r-guide ol{margin:0;padding:0;list-style:none;border-top:1px solid var(--border);counter-reset:guide}
.r-guide li{counter-increment:guide;display:flex;gap:20px;border-bottom:1px solid var(--border);padding:15px 0;font-size:16px;font-weight:600}
.r-guide li:before{content:counter(guide,decimal-leading-zero);font:700 14px ui-monospace,monospace;color:var(--accent)}
.r-faq{background:#fff}
.r-faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:11%}
.r-faq-grid>div:first-child>p{margin-bottom:13px}
.r-contact{display:flex;flex-direction:column;align-items:start;gap:7px;margin-top:45px;border-top:1px solid var(--border);padding-top:18px}
.r-contact strong{margin-bottom:4px}.r-contact button{border:0;background:none;padding:0;color:var(--accent);font-weight:700;text-decoration:underline;text-underline-offset:3px}.r-contact a{color:var(--accent);font-weight:700}
.r-faq-list{border-top:1px solid var(--border)}
.r-faq-list details{border-bottom:1px solid var(--border)}
.r-faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:20px;cursor:pointer;list-style:none;padding:18px 0;font-size:16px;font-weight:700}
.r-faq-list summary::-webkit-details-marker{display:none}
.r-faq-list summary span{color:var(--accent);font-size:18px}.r-faq-list details[open] summary span{transform:rotate(45deg)}
.r-faq-list details p{padding:0 28px 18px 0;font-size:14px}
.r-reading-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.r-reading-grid>a{display:block;position:relative;min-height:162px;border:1px solid var(--border);border-radius:8px;background:#fff;padding:18px 20px;text-decoration:none}
.r-reading-grid>a:hover{border-color:var(--accent)}
.r-reading-grid span{font-size:12px;color:var(--accent);font-weight:700}.r-reading-grid strong{display:block;font-size:17px;margin:10px 0 7px}.r-reading-grid p{font-size:13px;padding-right:14px}.r-reading-grid b{position:absolute;right:17px;top:16px;color:var(--accent)}
@media(max-width:1024px){.primary-nav{background:#fff}.r-hero-grid{min-height:460px}.r-hero h1{font-size:39px}.r-hero-copy>p:not(.r-kicker){font-size:15px}.r-catalog-grid{grid-template-columns:repeat(2,1fr)}.r-access-grid{gap:5%}}
@media(max-width:768px){.r-desktop-break{display:none}.r-hero-grid{grid-template-columns:1fr;gap:23px;padding-top:34px;padding-bottom:35px}.r-hero h1{font-size:32px;line-height:1.35}.r-hero-copy>p:not(.r-kicker){font-size:15px;margin-bottom:21px}.r-hero-actions{gap:17px}.r-hero-visual{width:100%;max-width:480px}.r-section{padding-top:39px;padding-bottom:39px}.r-section h2{font-size:26px}.r-heading{display:block;margin-bottom:20px}.r-heading .r-inline-link{display:inline-block;margin-top:12px}.r-catalog-grid{grid-template-columns:1fr;gap:8px}.r-product{min-height:0;padding:13px 15px;display:grid;grid-template-columns:50px 1fr;column-gap:8px}.r-product-id{grid-row:1/4;font-size:25px;margin:0}.r-product strong{font-size:16px}.r-product-type{margin:3px 0}.r-product-bottom{grid-column:2;margin-top:8px;padding-top:7px}.r-access-grid,.r-guide,.r-faq-grid{grid-template-columns:1fr;gap:22px}.r-access-list>div{grid-template-columns:1fr;gap:4px;padding:13px 0}.r-guide ol{margin-top:10px}.r-contact{margin-top:18px}.r-reading-grid{grid-template-columns:1fr;gap:9px}.r-reading-grid>a{min-height:0;padding:15px}.r-reading-grid strong{margin:5px 0}.site-footer{font-size:14px}}
@media(max-width:390px){.r-hero h1{font-size:30px}.r-button{font-size:14px;padding:9px 13px}}
@media(prefers-reduced-motion:reduce){.r-product{transition:none}}

/* Supplied brand artwork: complete 4:3 composition, responsive and keyboard zoomable. */
.brand-home-figure{min-width:0;margin:0;display:block;background:transparent;box-shadow:none;overflow:visible}
.brand-home-link{display:block;width:100%;border-radius:8px;overflow:hidden;line-height:0;cursor:zoom-in;text-decoration:none}
.brand-home-link:focus-visible{outline:3px solid currentColor;outline-offset:5px}
.brand-home-link img{display:block;width:100%;max-width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;filter:none;box-shadow:none}
.brand-home-caption{display:flex;justify-content:flex-end;gap:8px;align-items:center;margin:8px 0 0;font-size:12px;line-height:1.6;letter-spacing:0}

.r-hero-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:42px}
.r-hero .r-hero-visual{display:block;background:transparent;overflow:visible;border-radius:0}
.r-hero .brand-home-caption{color:#d8e7ed}
@media(max-width:768px){.r-hero-grid{grid-template-columns:1fr;gap:24px}.r-hero .r-hero-visual{width:100%;max-width:none}}