/* roulang page: index */
:root{
--ink:#1d2b3a;
--ink2:#5f7185;
--paper:#f4f8fc;
--surface:#ffffff;
--line:#dbe5f0;
--brand:#2f6aa8;
--warm:#ef9c57;
--rad:16px;
--sh:0 10px 28px rgba(31,72,116,.09);
--gap:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.72;color:var(--ink);background:var(--surface)}
img{display:block;max-width:100%}
a{color:var(--brand);text-decoration:none}
h1,h2,h3{line-height:1.4;margin:0}
p{margin:0}
ul,ol,dl{margin:0;padding:0}
.fywsxl-wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 18px}

/* 顶栏 */
.fywsxl-top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.fywsxl-topin{display:flex;flex-direction:column;gap:4px;padding:10px 0}
.fywsxl-brand{display:inline-flex;align-items:center;gap:9px;min-height:44px;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.4px}
.fywsxl-logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#3d80be,#7fb3dd);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700}
.fywsxl-nav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.fywsxl-nav::-webkit-scrollbar{display:none}
.fywsxl-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:999px;font-size:14.5px;color:var(--ink2);white-space:nowrap;transition:background .2s,color .2s}
.fywsxl-nav a:hover{background:rgba(47,106,168,.09);color:var(--brand)}
.fywsxl-nav a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* 首屏 */
.fywsxl-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#eef5fc 0%,#f8fbfe 100%)}
.fywsxl-hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;opacity:.16}
.fywsxl-heroin{position:relative;display:grid;gap:30px;padding:42px 0 54px}
.fywsxl-kicker{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--brand);font-weight:600;box-shadow:0 4px 12px rgba(31,72,116,.06)}
.fywsxl-kicker::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--warm)}
.fywsxl-hero h1{font-size:clamp(29px,8vw,48px);margin:16px 0 12px;letter-spacing:.5px}
.fywsxl-h1mark{color:var(--brand);box-shadow:inset 0 -.34em 0 rgba(239,156,87,.32)}
.fywsxl-lead{color:var(--ink2);font-size:15px;line-height:1.85;max-width:36em}
.fywsxl-form{display:flex;flex-direction:column;gap:10px;margin-top:22px;max-width:430px}
.fywsxl-input{width:100%;min-height:46px;padding:0 18px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font:inherit;font-size:15px;transition:border-color .2s,box-shadow .2s}
.fywsxl-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,106,168,.16)}
.fywsxl-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border:0;border-radius:999px;background:var(--brand);color:#fff;font:inherit;font-weight:600;font-size:15px;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.fywsxl-btn:hover{background:#275c92;transform:translateY(-1px);box-shadow:0 10px 20px rgba(39,92,146,.24)}
.fywsxl-btn:focus-visible{outline:2px solid var(--warm);outline-offset:3px}
.fywsxl-hint{margin-top:12px;font-size:13px;color:var(--ink2)}
.fywsxl-poster{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--rad);box-shadow:var(--sh);padding:10px}
.fywsxl-poster img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;border-radius:10px}
.fywsxl-poster figcaption{display:flex;flex-wrap:wrap;gap:8px;padding:12px 4px 4px}
.fywsxl-chip{display:inline-flex;align-items:center;min-height:30px;padding:0 12px;border-radius:999px;background:rgba(47,106,168,.09);color:var(--brand);font-size:12.5px;font-weight:600}
.fywsxl-chip--w{background:rgba(239,156,87,.16);color:#a8641f}

/* 区块 */
.fywsxl-sec{padding:50px 0}
.fywsxl-sec--soft{background:var(--paper)}
.fywsxl-head{max-width:760px;margin-bottom:26px}
.fywsxl-head h2{font-size:clamp(22px,4.6vw,30px);margin-bottom:10px}
.fywsxl-head p{color:var(--ink2);font-size:15px;line-height:1.85}

.fywsxl-grid{display:grid;gap:var(--gap);grid-template-columns:1fr}
.fywsxl-brief{list-style:none;display:grid;gap:12px}
.fywsxl-brief li{padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;color:var(--ink2);font-size:14.5px;line-height:1.8}
.fywsxl-brief strong{color:var(--ink);font-weight:700}

.fywsxl-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--rad);box-shadow:var(--sh);overflow:hidden;transition:transform .22s,box-shadow .22s}
.fywsxl-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(31,72,116,.14)}
.fywsxl-thumb{aspect-ratio:16/10;overflow:hidden;background:#e8eff7}
.fywsxl-thumb img{width:100%;height:100%;object-fit:cover}
.fywsxl-cardbody{display:flex;flex-direction:column;gap:8px;padding:16px 18px 18px;flex:1}
.fywsxl-cardbody h3{font-size:16.5px}
.fywsxl-cardbody p{color:var(--ink2);font-size:14px;line-height:1.75}
.fywsxl-tag{align-self:flex-start;display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:rgba(47,106,168,.1);color:var(--brand);font-size:12px;font-weight:600}
.fywsxl-tag--w{background:rgba(239,156,87,.18);color:#a8641f}

.fywsxl-plain{display:flex;flex-direction:column;gap:10px;padding:20px 20px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--rad);box-shadow:var(--sh)}
.fywsxl-plain h3{font-size:16.5px;color:var(--ink)}
.fywsxl-plain p{color:var(--ink2);font-size:14px;line-height:1.78}
.fywsxl-plain .fywsxl-tag{margin-bottom:2px}

.fywsxl-steps{list-style:none;display:grid;gap:14px}
.fywsxl-steps li{display:flex;gap:14px;align-items:flex-start;padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--rad);box-shadow:var(--sh)}
.fywsxl-num{flex:0 0 38px;width:38px;height:38px;border-radius:12px;background:rgba(47,106,168,.1);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:15px}
.fywsxl-steps h3{font-size:16px;margin-bottom:5px}
.fywsxl-steps p{color:var(--ink2);font-size:14px;line-height:1.75}

.fywsxl-rank{list-style:none;display:grid;gap:0}
.fywsxl-rank li{display:flex;gap:12px;align-items:baseline;padding:12px 2px;border-bottom:1px dashed var(--line)}
.fywsxl-rank li:last-child{border-bottom:0}
.fywsxl-idx{flex:0 0 26px;color:var(--warm);font-weight:700;font-size:15px;font-variant-numeric:tabular-nums}
.fywsxl-rank .fywsxl-rt{font-size:15px;color:var(--ink)}
.fywsxl-rank .fywsxl-tag{margin-left:auto;flex:0 0 auto;align-self:center}

.fywsxl-kou{list-style:none;display:grid;gap:var(--gap)}
.fywsxl-quote{margin:0;padding:18px;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--warm);border-radius:12px}
.fywsxl-quote p{font-size:14.5px;line-height:1.8;color:var(--ink)}
.fywsxl-quote cite{display:block;margin-top:10px;font-style:normal;font-size:13px;color:var(--ink2)}

.fywsxl-matrix{list-style:none;display:grid;gap:10px}
.fywsxl-matrix li{display:grid;gap:4px;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:12px}
.fywsxl-matrix b{color:var(--brand);font-size:14.5px}
.fywsxl-matrix span{color:var(--ink2);font-size:14px;line-height:1.75}

.fywsxl-faq{display:grid;gap:12px}
.fywsxl-qa{padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:12px}
.fywsxl-qa dt{font-weight:700;font-size:15px}
.fywsxl-qa dd{margin:8px 0 0;color:var(--ink2);font-size:14px;line-height:1.8}

/* 页脚 */
.fywsxl-foot{margin-top:10px;padding:44px 0 22px;background:#16283a;color:#c2d2e2}
.fywsxl-footgrid{display:grid;gap:26px;grid-template-columns:1fr}
.fywsxl-foot h3{margin-bottom:10px;font-size:15px;color:#fff}
.fywsxl-foot p{font-size:14px;line-height:1.85;color:#a9bccf}
.fywsxl-foot ul{list-style:none;display:grid;gap:2px}
.fywsxl-foot a{display:inline-flex;align-items:center;min-height:44px;font-size:14.5px;color:#c2d2e2;transition:color .2s}
.fywsxl-foot a:hover{color:#fff}
.fywsxl-foot a:focus-visible{outline:2px solid var(--warm);outline-offset:2px}
.fywsxl-foot span{display:inline-flex;align-items:center;min-height:36px;font-size:14.5px;color:#a9bccf}
.fywsxl-copy{margin-top:30px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#8ea4ba}

@media (min-width:520px){
.fywsxl-form{flex-direction:row;align-items:center;max-width:520px}
.fywsxl-input{flex:1 1 auto}
.fywsxl-btn{flex:0 0 auto}
.fywsxl-grid{grid-template-columns:repeat(2,1fr)}
.fywsxl-kou{grid-template-columns:repeat(2,1fr)}
.fywsxl-footgrid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
.fywsxl-sec{padding:62px 0}
.fywsxl-steps{grid-template-columns:repeat(3,1fr)}
.fywsxl-matrix li{grid-template-columns:132px 1fr;align-items:center;gap:14px}
.fywsxl-footgrid{grid-template-columns:1.4fr 1fr 1fr 1fr}
}
@media (min-width:1024px){
.fywsxl-topin{flex-direction:row;align-items:center;justify-content:space-between}
.fywsxl-heroin{grid-template-columns:1.12fr .88fr;align-items:center;padding:56px 0 66px}
.fywsxl-grid{grid-template-columns:repeat(3,1fr)}
.fywsxl-sec .fywsxl-grid--4{grid-template-columns:repeat(4,1fr)}
.fywsxl-kou{grid-template-columns:repeat(3,1fr)}
.fywsxl-foot{padding-top:52px}
}
@media (min-width:1024px){
.fywsxl-grid--4{grid-template-columns:repeat(4,1fr)}
}