/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --ink:#152238;
  --ink2:#5d6d89;
  --paper:#f5f8fe;
  --sky:#2f6bd8;
  --sky-d:#1c4aa4;
  --mist:#e4edfb;
  --line:#dee8f7;
  --rad:16px;
  --sh:0 12px 28px rgba(27,58,112,.09);
}
body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.75 "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit}
:focus-visible{outline:2px solid var(--sky);outline-offset:2px}

.xadirca-wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 18px}

/* 顶栏 */
.xadirca-top{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.xadirca-top-in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px}
.xadirca-logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.xadirca-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,#3f7ce0,#8ab1f2);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:600}
.xadirca-menu{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.xadirca-menu::-webkit-scrollbar{display:none}
.xadirca-menu a{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;font-size:14px;color:var(--ink2);white-space:nowrap;transition:color .2s,background .2s}
.xadirca-menu a:hover,.xadirca-menu a:focus-visible{color:var(--sky-d);background:var(--mist)}

/* 首屏 */
.xadirca-hero{position:relative;overflow:hidden;background:#101e35;color:#fff}
.xadirca-herobg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4}
.xadirca-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,26,48,.55),rgba(12,26,48,.86))}
.xadirca-hero-in{position:relative;z-index:2;max-width:880px;padding-top:58px;padding-bottom:64px;text-align:center}
.xadirca-eyebrow{display:inline-block;font-size:12.5px;letter-spacing:2px;color:#b9d2f7;border:1px solid rgba(185,210,247,.4);border-radius:999px;padding:4px 14px}
.xadirca-hero h1{margin:16px 0 10px;font-size:clamp(27px,7vw,46px);line-height:1.3;letter-spacing:1px}
.xadirca-hsub{font-size:15px;color:#d5e3f8}
.xadirca-search{display:flex;align-items:center;gap:6px;max-width:540px;margin:26px auto 0;padding:6px;border-radius:999px;background:#fff;box-shadow:0 18px 44px rgba(6,20,44,.34)}
.xadirca-search input{flex:1;min-width:0;min-height:44px;border:0;background:transparent;padding:0 16px;font-size:15px;color:var(--ink);outline:none}
.xadirca-search button{min-height:44px;padding:0 22px;border:0;border-radius:999px;background:var(--sky);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s}
.xadirca-search button:hover{background:var(--sky-d)}
.xadirca-chips-t{margin-top:24px;font-size:13px;color:#9fbbe4}
.xadirca-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:10px}
.xadirca-chips a{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:1px solid rgba(255,255,255,.32);border-radius:999px;font-size:13.5px;color:#dbe8fa;transition:background .2s,border-color .2s}
.xadirca-chips a:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6)}
.xadirca-hintro{max-width:720px;margin:26px auto 0;font-size:14.5px;line-height:1.95;color:rgba(226,237,252,.86);text-align:left}

/* 区块 */
.xadirca-sec{padding:50px 0}
.xadirca-sec--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.xadirca-head{max-width:660px;margin-bottom:24px}
.xadirca-kicker{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:1.6px;color:var(--sky);margin-bottom:8px}
.xadirca-head h2{font-size:clamp(20px,4.6vw,28px);line-height:1.4}
.xadirca-head p{margin-top:10px;font-size:14.5px;color:var(--ink2)}

/* 作品墙 */
.xadirca-gallery{display:grid;grid-template-columns:1fr;gap:16px}
.xadirca-shot{background:#fff;border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;box-shadow:var(--sh);transition:transform .25s,box-shadow .25s}
.xadirca-shot:hover{transform:translateY(-3px);box-shadow:0 20px 38px rgba(27,58,112,.15)}
.xadirca-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--mist)}
.xadirca-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.xadirca-shot:hover .xadirca-thumb img{transform:scale(1.04)}
.xadirca-badge{position:absolute;top:10px;left:10px;padding:3px 11px;border-radius:999px;background:rgba(17,32,54,.7);color:#fff;font-size:12px;letter-spacing:.5px;backdrop-filter:blur(4px)}
.xadirca-shot-body{padding:14px 16px 16px}
.xadirca-shot-body h3{font-size:16.5px}
.xadirca-shot-body p{margin-top:6px;font-size:13.8px;color:var(--ink2);line-height:1.7}

/* 概览 */
.xadirca-metrics{display:grid;grid-template-columns:1fr;gap:12px}
.xadirca-metric{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:18px 18px 16px;box-shadow:var(--sh)}
.xadirca-metric h3{font-size:15.5px;color:var(--sky-d);margin-bottom:6px}
.xadirca-metric p{font-size:13.8px;color:var(--ink2);line-height:1.7}

/* 取景对照 */
.xadirca-compare{display:grid;grid-template-columns:1fr;gap:14px}
.xadirca-cmp{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:20px 22px;box-shadow:var(--sh)}
.xadirca-cmp h3{font-size:17px}
.xadirca-cmp span{display:inline-block;margin-top:6px;font-size:12.5px;color:var(--sky);letter-spacing:1px}
.xadirca-cmp ul{margin-top:12px;display:grid;gap:10px}
.xadirca-cmp li{position:relative;padding-left:16px;font-size:14px;line-height:1.7;color:var(--ink2)}
.xadirca-cmp li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--sky);opacity:.6}

/* 方法 */
.xadirca-split{display:grid;grid-template-columns:1fr;gap:24px}
.xadirca-steps{display:grid;gap:12px}
.xadirca-steps li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.xadirca-steps h3{font-size:15.5px;margin:10px 0 4px}
.xadirca-steps p{font-size:13.8px;color:var(--ink2);line-height:1.7}
.xadirca-no{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:9px;background:var(--mist);color:var(--sky-d);font-size:13px;font-weight:700}

/* 分类 */
.xadirca-cats{display:grid;grid-template-columns:1fr;gap:12px}
.xadirca-cat{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:16px 18px}
.xadirca-tag{display:inline-block;padding:2px 12px;border-radius:999px;background:var(--mist);color:var(--sky-d);font-size:13px;font-weight:600}
.xadirca-cat p{margin-top:8px;font-size:13.8px;color:var(--ink2);line-height:1.7}

/* 推荐清单 */
.xadirca-picks{display:grid;grid-template-columns:1fr;gap:14px}
.xadirca-pick{display:flex;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:10px;box-shadow:var(--sh)}
.xadirca-pick .xadirca-thumb{flex:0 0 88px;width:88px;height:88px;aspect-ratio:auto;border-radius:11px}
.xadirca-pick h3{font-size:15.5px}
.xadirca-pick p{margin-top:4px;font-size:13.5px;color:var(--ink2);line-height:1.65}

/* 排行 */
.xadirca-rank{display:grid;grid-template-columns:1fr;gap:8px}
.xadirca-rank li{display:flex;align-items:center;flex-wrap:wrap;gap:8px 10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px;min-height:52px}
.xadirca-rank h3{font-size:15px;font-weight:600;flex:1;min-width:92px}
.xadirca-rank .xadirca-no--top{background:var(--sky);color:#fff}
.xadirca-heat{font-size:12.5px;color:var(--ink2);flex:0 0 auto}

/* 专题 */
.xadirca-themes{display:grid;grid-template-columns:1fr;gap:14px}
.xadirca-theme{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:20px;box-shadow:var(--sh);border-top:3px solid var(--sky)}
.xadirca-theme h3{font-size:16.5px}
.xadirca-theme p{margin-top:8px;font-size:13.8px;color:var(--ink2);line-height:1.7}

/* 创作者 */
.xadirca-creators{display:grid;grid-template-columns:1fr;gap:12px}
.xadirca-creators li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.xadirca-ava{flex:0 0 40px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,#3f7ce0,#8ab1f2);color:#fff;font-size:15px;font-weight:600}
.xadirca-creators h3{font-size:15px}
.xadirca-creators p{margin-top:3px;font-size:13.5px;color:var(--ink2);line-height:1.65}

/* 资讯 */
.xadirca-news{display:grid;gap:2px}
.xadirca-news li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line)}
.xadirca-news li:last-child{border-bottom:0}
.xadirca-when{flex:0 0 auto;min-width:46px;font-size:12.5px;color:var(--sky);padding-top:2px}
.xadirca-news p{font-size:14px;color:var(--ink2);line-height:1.7}

/* 问答 */
.xadirca-faq{display:grid;gap:10px;max-width:860px}
.xadirca-faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:4px 16px}
.xadirca-faq summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;cursor:pointer;font-size:15px;font-weight:600;list-style:none}
.xadirca-faq summary::-webkit-details-marker{display:none}
.xadirca-faq summary::after{content:"+";color:var(--sky);font-size:18px;line-height:1}
.xadirca-faq details[open] summary::after{content:"–"}
.xadirca-faq details p{padding:0 0 14px;font-size:13.8px;color:var(--ink2);line-height:1.8}

/* 收口 */
.xadirca-cta{background:linear-gradient(135deg,#1c4aa4,#2f6bd8);color:#fff;border-radius:20px;padding:34px 22px;text-align:center;box-shadow:0 20px 40px rgba(28,74,164,.24)}
.xadirca-cta h2{font-size:clamp(20px,4.4vw,26px)}
.xadirca-cta p{max-width:640px;margin:12px auto 0;font-size:14px;line-height:1.85;color:rgba(232,241,255,.9)}
.xadirca-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;margin-top:20px;padding:0 30px;border:0;border-radius:999px;background:#fff;color:var(--sky-d);font-size:15px;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s}
.xadirca-btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(8,26,58,.26)}
.xadirca-cta-note{margin-top:14px;font-size:12.8px;color:rgba(226,238,255,.72)}

/* 页脚 */
.xadirca-foot{background:#0f1d33;color:#c2d2e9;padding-top:40px;margin-top:0}
.xadirca-foot-grid{display:grid;grid-template-columns:1fr;gap:24px}
.xadirca-foot-logo{font-size:17px;font-weight:700;color:#fff;margin-bottom:8px}
.xadirca-foot-brand p{font-size:13.5px;line-height:1.75;color:#9db3d1}
.xadirca-foot h4{font-size:14.5px;color:#fff;margin-bottom:10px}
.xadirca-foot li{font-size:13.5px;color:#9db3d1;line-height:2}
.xadirca-foot li a{transition:color .2s}
.xadirca-foot li a:hover{color:#fff}
.xadirca-copy{margin-top:28px;padding:16px 0;border-top:1px solid rgba(255,255,255,.12);text-align:center;font-size:13px;color:#8099bb}

@media (min-width:520px){
  .xadirca-metrics{grid-template-columns:repeat(2,1fr)}
  .xadirca-cats{grid-template-columns:repeat(2,1fr)}
  .xadirca-foot-grid{grid-template-columns:repeat(2,1fr)}
  .xadirca-hintro{font-size:15px}
}
@media (min-width:768px){
  .xadirca-sec{padding:66px 0}
  .xadirca-gallery{grid-template-columns:repeat(2,1fr)}
  .xadirca-compare{grid-template-columns:repeat(2,1fr)}
  .xadirca-split{grid-template-columns:.85fr 1.15fr;align-items:start;gap:32px}
  .xadirca-steps{grid-template-columns:repeat(2,1fr)}
  .xadirca-picks{grid-template-columns:repeat(2,1fr)}
  .xadirca-rank{grid-template-columns:repeat(2,1fr)}
  .xadirca-themes{grid-template-columns:repeat(3,1fr)}
  .xadirca-creators{grid-template-columns:repeat(2,1fr)}
  .xadirca-menu a{padding:0 14px;font-size:14.5px}
}
@media (min-width:1024px){
  .xadirca-gallery{grid-template-columns:repeat(3,1fr)}
  .xadirca-metrics{grid-template-columns:repeat(4,1fr)}
  .xadirca-cats{grid-template-columns:repeat(3,1fr)}
  .xadirca-steps{grid-template-columns:repeat(4,1fr)}
  .xadirca-picks{grid-template-columns:repeat(3,1fr)}
  .xadirca-creators{grid-template-columns:repeat(3,1fr)}
  .xadirca-foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .xadirca-hero-in{padding-top:78px;padding-bottom:84px}
  .xadirca-hintro{text-align:center}
}