:root{
  --red:#c90000;--red2:#a80000;--text:#1f2329;--muted:#5d6673;--soft:#8a93a0;
  --bg:#fff;--softbg:#f6f7f9;--section:#f1f3f6;--line:rgba(201,0,0,.12);
  --shadow:0 12px 30px rgba(18,28,45,.08);--radius:18px;--header:74px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75}
body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%}button{font:inherit}
h1,h2,h3{color:var(--red);line-height:1.3}p{margin-top:0}.eyebrow{display:inline-block;color:var(--red);font-weight:900;font-size:13px;letter-spacing:.12em;margin-bottom:10px}
.site-header{position:fixed;z-index:1000;inset:0 0 auto;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(201,0,0,.08)}
.header-inner{width:min(1460px,calc(100% - 40px));min-height:var(--header);margin:auto;display:grid;grid-template-columns:210px minmax(0,1fr) 104px;align-items:center;gap:24px}
.logo img{display:block;max-width:180px;max-height:52px;object-fit:contain}.nav-core{display:flex;justify-content:center;align-items:center;gap:10px;white-space:nowrap}
.nav-core a{padding:9px 16px;border-radius:999px;background:var(--softbg);font-weight:800;font-size:15px}
.nav-core a:hover,.nav-core a.active{color:var(--red);background:rgba(201,0,0,.08)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 24px;border-radius:999px;background:linear-gradient(180deg,#f12b2b 0%,#c90000 55%,#a80000 100%);color:#fff;font-weight:900;box-shadow:0 8px 18px rgba(201,0,0,.2)}
.header-register{width:96px;justify-self:end}.menu-toggle{display:none;width:42px;height:42px;padding:9px;border:1px solid #e4e7ec;border-radius:12px;background:#fff}
.menu-toggle i{display:block;height:2px;background:#1f2329;margin:4px;border-radius:2px}
.page-shell{width:min(1460px,calc(100% - 40px));margin:auto;padding-top:calc(var(--header) + 24px);display:grid;grid-template-columns:206px minmax(0,1fr);gap:26px;align-items:start}
.side-category{position:sticky;top:96px;max-height:calc(100vh - 116px);overflow:auto;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
.side-category strong{display:block;color:var(--red);margin-bottom:10px}.side-category nav{display:grid;gap:4px}
.side-category a{padding:8px 11px;border-radius:11px;font-size:14px;line-height:1.35}.side-category a:hover,.side-category a.active{color:var(--red);background:rgba(201,0,0,.08)}
.content-area{min-width:0;padding-bottom:48px}
.banner-slider{position:relative;width:100%;height:clamp(260px,26vw,360px);margin-bottom:34px;border-radius:22px;overflow:hidden;background:#f7f8fa;box-shadow:var(--shadow)}
.banner-slide{position:absolute;inset:0;opacity:0;transition:.5s}.banner-slide.active{opacity:1}.banner-slide img{width:100%;height:100%;object-fit:contain;background:#f7f8fa}
.banner-arrow{position:absolute;z-index:2;top:50%;width:42px;height:42px;margin-top:-21px;border:1px solid rgba(255,255,255,.7);border-radius:50%;background:rgba(17,21,28,.48)}
.banner-arrow:before{content:"";position:absolute;top:13px;width:12px;height:12px;border-top:2px solid #fff;border-right:2px solid #fff}.banner-prev{left:16px}.banner-next{right:16px}
.banner-prev:before{left:16px;transform:rotate(-135deg)}.banner-next:before{right:16px;transform:rotate(45deg)}
.banner-dots{position:absolute;z-index:2;bottom:14px;left:50%;display:flex;gap:8px;transform:translateX(-50%)}
.banner-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.62)}.banner-dot.active{width:26px;border-radius:99px;background:#fff}
.hero,.inner-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);gap:34px;align-items:center;padding:36px;margin-bottom:34px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow)}
.hero h1,.inner-hero h1{font-size:clamp(30px,4vw,50px);margin:0 0 16px}.hero p,.inner-hero p{font-size:17px;color:var(--muted)}
.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:24px}.text-link{color:var(--red);font-weight:900}.text-link:after{content:" →"}
.hero-media,.inner-hero-media{margin:0;min-height:230px;display:flex;align-items:center;justify-content:center;border-radius:20px;overflow:hidden;background:#f7f8fa}
.hero-media img,.inner-hero-media img{width:100%;max-height:290px;object-fit:contain}
.service-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-bottom:42px;border-radius:22px;overflow:hidden;box-shadow:0 18px 34px rgba(201,0,0,.18)}
.service-summary article{padding:26px;min-height:150px;background:linear-gradient(155deg,#e41f1f,#bb0000);color:#fff}.service-summary h2{color:#fff;margin:0 0 8px}.service-summary p{font-size:14px;color:rgba(255,255,255,.86)}
.section{margin:42px 0}.section-head{max-width:760px;margin-bottom:24px}.section-head h2{font-size:clamp(26px,3vw,38px);margin:0 0 10px}.section-head p{color:var(--muted)}
.quick-grid,.feature-grid,.card-grid,.review-grid{display:grid;gap:16px}.quick-grid{grid-template-columns:repeat(3,1fr)}.feature-grid{grid-template-columns:repeat(4,1fr)}.card-grid,.review-grid{grid-template-columns:repeat(3,1fr)}
.quick-grid a,.feature-card,.content-card,.review-card,.image-card{border:1px solid rgba(201,0,0,.1);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
.quick-grid a{padding:22px;min-height:140px}.quick-grid strong{display:block;color:var(--red);font-size:18px;margin-bottom:8px}.quick-grid span{color:var(--muted);font-size:14px}
.feature-card,.content-card,.review-card{padding:24px}.feature-card b{display:inline-flex;width:42px;height:30px;align-items:center;justify-content:center;border-radius:99px;background:rgba(201,0,0,.08);color:var(--red);font-size:13px}
.feature-card h3,.content-card h2{margin:14px 0 8px}.feature-card p,.content-card p,.review-card p{color:var(--muted);font-size:14px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:42px 0}.split-media{min-height:280px;display:flex;align-items:center;justify-content:center;border-radius:22px;overflow:hidden;background:#f7f8fa;box-shadow:var(--shadow)}.split-media img{width:100%;max-height:300px;object-fit:contain}
.split-copy{padding:34px;border:1px solid var(--line);border-radius:22px;background:#fff}.split-copy h2{font-size:clamp(25px,3vw,36px)}.split-copy p{color:var(--muted)}
.image-card{overflow:hidden}.image-card img{display:block;width:100%;height:180px;object-fit:contain;background:#f7f8fa}.image-card div{padding:22px}.image-card p{color:var(--muted);font-size:14px}
.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.soft-section{padding:34px;border-radius:24px;background:var(--softbg)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step{display:flex;gap:16px;padding:22px;border-radius:18px;background:#fff}.step>span{flex:0 0 38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--red);color:#fff;font-weight:900}.step h3{margin:0 0 6px}.step p{color:var(--muted);font-size:14px}
.review-card:before{content:"“";display:block;height:38px;color:var(--red);font:52px/.9 Georgia,serif}.review-highlight{display:grid;grid-template-columns:.6fr 1.4fr;gap:28px;align-items:center;padding:34px;margin:42px 0;border:1px solid var(--line);border-radius:24px;background:linear-gradient(145deg,#fff7f7,#f6f7f9)}.review-highlight blockquote{margin:0;padding-left:24px;border-left:3px solid var(--red);color:var(--muted)}
.faq-list{display:grid;gap:12px}.faq-list details{padding:0 20px;border:1px solid #e7eaf0;border-radius:14px;background:#fff}.faq-list summary{padding:17px 0;font-weight:900;cursor:pointer}.faq-list details[open] summary{color:var(--red)}.faq-list p{padding-bottom:18px;color:var(--muted)}
.notice{display:flex;align-items:center;justify-content:space-between;gap:26px;padding:30px;margin-top:42px;border:1px solid rgba(201,0,0,.14);border-radius:22px;background:#fff8f8}.notice>div{display:flex;gap:18px;align-items:flex-start}.notice-mark{flex:0 0 54px;height:54px;display:flex;align-items:center;justify-content:center;border:2px solid var(--red);border-radius:50%;color:var(--red);font-weight:900}.notice h2{margin:0 0 6px;font-size:20px}.notice p{color:var(--muted);font-size:14px}.notice>a{color:var(--red);font-weight:900;white-space:nowrap}
.site-footer{background:#11151c;color:#e7ecf3}.footer-grid{width:min(1240px,calc(100% - 40px));margin:auto;padding:52px 0 34px;display:grid;grid-template-columns:1.5fr .7fr .8fr 1fr;gap:34px}.footer-grid h2{color:#fff;font-size:17px}.footer-grid a{display:block;width:max-content;margin:7px 0;color:#c8d0db;font-size:14px}.footer-grid p{color:#aeb8c5;font-size:14px}.footer-brand img{max-width:180px;max-height:52px;object-fit:contain}.footer-bottom{width:min(1240px,calc(100% - 40px));margin:auto;padding:18px 0 26px;display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.09);color:#8e9aa8;font-size:13px}
.mobile-drawer,.drawer-mask,.mobile-bottom-nav{display:none}
@media(max-width:1180px){.header-inner{grid-template-columns:180px 1fr 96px}.nav-core a{padding:9px 12px;font-size:14px}.page-shell{grid-template-columns:184px 1fr}.feature-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:980px){
  :root{--header:66px}.header-inner{width:min(100% - 24px,760px);grid-template-columns:46px 1fr 82px;gap:10px}.menu-toggle{display:block}.nav-core{display:none}.logo{text-align:center}.logo img{max-width:150px;max-height:44px;margin:auto}.header-register{width:82px;min-height:40px;padding:8px 16px}
  .page-shell{width:min(100% - 24px,760px);display:block;padding-top:calc(var(--header) + 16px)}.side-category{display:none}
  .mobile-drawer{display:block;position:fixed;z-index:1200;inset:0 auto 0 0;width:min(84vw,320px);padding:18px;overflow:auto;background:#fff;transform:translateX(-105%);transition:.28s;box-shadow:20px 0 50px rgba(18,28,45,.18)}.menu-open .mobile-drawer{transform:none}
  .drawer-mask{display:block;position:fixed;z-index:1100;inset:0;background:rgba(17,21,28,.5);opacity:0;visibility:hidden;transition:.25s}.menu-open .drawer-mask{opacity:1;visibility:visible}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid #e7eaf0}.drawer-top img{max-width:150px;max-height:48px}.drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:var(--softbg);font-size:28px}
  .mobile-drawer nav{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;padding:18px 0}.mobile-drawer nav a{padding:10px 12px;border-radius:12px;background:var(--softbg);font-size:14px}.mobile-drawer nav a.active{color:var(--red);background:rgba(201,0,0,.08);font-weight:900}.mobile-drawer>p{padding:14px;border-radius:14px;background:#fff8f8;color:var(--muted);font-size:13px}
  .hero,.inner-hero,.split,.review-highlight{grid-template-columns:1fr}.service-summary{grid-template-columns:repeat(2,1fr)}.quick-grid,.card-grid,.review-grid,.steps{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:1fr}
  .mobile-bottom-nav{position:fixed;z-index:900;inset:auto 0 0;display:grid;grid-template-columns:repeat(4,1fr);min-height:62px;padding-bottom:env(safe-area-inset-bottom);border-top:1px solid #e7eaf0;background:rgba(255,255,255,.98);box-shadow:0 -8px 22px rgba(18,28,45,.08)}.mobile-bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);font-size:12px}.mobile-bottom-nav a.active{color:var(--red);font-weight:900}.mobile-bottom-nav b{font-size:19px;line-height:1}.content-area{padding-bottom:92px}.site-footer{padding-bottom:62px}
}
@media(max-width:680px){
  .banner-slider{height:clamp(150px,44vw,210px);border-radius:16px}.hero,.inner-hero{padding:24px;gap:22px}.hero h1,.inner-hero h1{font-size:30px}.hero p,.inner-hero p{font-size:15px}.hero-media,.inner-hero-media{min-height:180px}.hero-media img,.inner-hero-media img{max-height:220px}
  .service-summary,.quick-grid,.feature-grid,.card-grid,.review-grid,.steps,.footer-grid{grid-template-columns:1fr}.service-summary article{min-height:auto}.split-media{min-height:210px}.split-media img{max-height:230px}.split-copy,.soft-section,.content-card,.review-highlight,.notice{padding:24px}.image-card img{height:150px}.review-highlight,.notice{display:block}.notice>div{display:block}.notice-mark{margin-bottom:14px}.notice>a{display:inline-block;margin-top:16px}.footer-bottom{display:grid;gap:8px;text-align:center}
}