:root{--blue:#185abd;--ink:#12365b;--pale:#eaf3ff;--line:#c9d9ed;--text:#26364b;--white:#fff}*{box-sizing:border-box}body{margin:0;color:var(--text);font:16px/1.85 'Noto Sans CJK SC','Microsoft YaHei',sans-serif;background:#fff}a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:#0b3677}a:focus-visible,summary:focus-visible{outline:3px solid #e2a124;outline-offset:5px}img{max-width:100%;height:auto;display:block}button,a,summary{-webkit-tap-highlight-color:transparent}.wda-wrap{width:min(1184px,calc(100% - 64px));margin:auto}.wda-header{border-bottom:1px solid var(--line);background:#fff}.wda-header .wda-wrap{display:flex;gap:24px;align-items:center;min-height:90px;justify-content:space-between}.wda-brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:19px;font-weight:700;white-space:nowrap}.wda-brand svg{width:44px;height:44px}.wda-nav{display:flex;gap:5px;align-items:center;flex-wrap:wrap;justify-content:flex-end;font-size:14px}.wda-nav a{padding:7px 10px;color:var(--text);text-decoration:none}.wda-nav a[aria-current]{background:var(--pale);box-shadow:inset 0 -2px var(--blue)}.wda-hero{background:linear-gradient(90deg,var(--blue) 0,var(--blue) 40%,var(--pale) 40%);padding:32px 0 54px}.wda-breadcrumb{color:#57667b;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0 0 18px;display:block}.wda-hero .wda-breadcrumb,.wda-hero .wda-breadcrumb a{color:#fff}.wda-hero-grid{display:grid;grid-template-columns:36% 64%;align-items:stretch}.wda-hero-text{padding:0 38px 12px 0;color:#fff;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.wda-hero-text h1{font-size:clamp(27px,2.8vw,41px);line-height:1.45;letter-spacing:-.03em;margin:0 0 24px;color:#fff;font-weight:750;overflow-wrap:anywhere}.wda-hero-text p{font-size:15px;line-height:1.9;margin:0 0 25px;color:#f1f6ff}.wda-get{display:inline-block;white-space:nowrap;background:#fff;color:#124b9c!important;text-decoration:none;font-size:15px;font-weight:700;padding:12px 21px;border:1px solid #fff;box-shadow:4px 4px 0 #113d86}.wda-hero-art{background:#fff;margin:9px 0 0 12px;align-self:center;box-shadow:0 14px 34px #0c366216;transform:rotate(-1.2deg)}.wda-hero-art img{width:100%}.wda-utility{padding:38px 0 42px;background:var(--pale)}.wda-utility h1{font-size:36px;line-height:1.5;margin:15px 0}.wda-utility .wda-get{background:var(--blue);color:#fff!important;box-shadow:none;margin-top:12px}.wda-utility p{max-width:760px}.wda-content{padding:58px 0 70px}.wda-home-start{display:grid;grid-template-columns:260px minmax(0,1fr);gap:66px;margin-bottom:60px}.wda-platforms{margin:0;border-top:4px solid var(--blue);padding-top:16px}.wda-platforms h2{margin:0 0 14px;font-size:20px;line-height:1.6}.wda-platform-item{display:block;border-bottom:1px solid var(--line);padding:18px 2px;text-decoration:none;font-weight:700;color:var(--ink)}.wda-platform-item span{display:block;font-weight:400;font-size:12px;color:#52677e;margin-top:4px}.wda-reading h2{font-size:27px;color:var(--ink);line-height:1.5;margin:0 0 20px}.wda-reading p{max-width:720px}.wda-tasklinks{display:flex;gap:24px;flex-wrap:wrap;margin-top:24px}.wda-article{display:grid;grid-template-columns:minmax(0,760px) 1fr;gap:60px;align-items:start}.wda-prose{min-width:0}.wda-section{padding:0 0 29px;margin:0 0 28px;border-bottom:1px solid var(--line)}.wda-section h2{font-size:25px;line-height:1.55;color:var(--ink);margin:0 0 17px}.wda-section p{margin:0;line-height:2.05;text-align:left}.wda-aside{background:var(--pale);border-left:4px solid var(--blue);padding:26px 22px;margin:0}.wda-aside p{margin:0 0 14px;font-size:14px}.wda-aside strong{display:block;color:var(--ink);margin-bottom:10px;font-size:18px}.wda-mid{background:var(--pale);padding:25px 32px;margin:30px 0 44px}.wda-mid-title{font-size:24px;font-weight:700;color:var(--ink);line-height:1.5;margin:0 0 8px}.wda-mid p:last-child{margin:0}.wda-steps{margin:0 0 50px;padding:0;list-style:none;counter-reset:step}.wda-steps li{padding:20px 0 20px 64px;position:relative;border-bottom:1px solid var(--line);counter-increment:step;min-height:96px}.wda-steps li:before{content:counter(step);position:absolute;left:0;top:23px;border:1px solid var(--blue);width:36px;height:36px;line-height:34px;text-align:center;color:var(--blue);font-weight:700}.wda-steps h3{font-size:19px;margin:0 0 6px;color:var(--ink)}.wda-steps p{margin:0}.wda-subtitle{font-size:27px;color:var(--ink);line-height:1.55;margin:40px 0 22px}.wda-faq details{border-top:1px solid var(--line);padding:20px 0}.wda-faq details:last-child{border-bottom:1px solid var(--line)}.wda-faq summary{cursor:pointer;font-size:18px;color:var(--ink);font-weight:650;padding-right:15px}.wda-faq p{margin:14px 0 0;max-width:830px;padding-left:22px}.wda-summary{margin-top:45px;padding:30px 0;border-top:3px solid var(--blue);display:grid;grid-template-columns:1fr 1fr;gap:38px}.wda-summary p{margin:0}.wda-links{display:flex;flex-wrap:wrap;gap:12px 22px;align-content:start}.wda-footer{background:#eaf0f7;padding:34px 0;font-size:13px}.wda-footer-main{display:flex;justify-content:space-between;align-items:center;gap:26px;flex-wrap:wrap}.wda-footer .wda-brand{font-size:17px}.wda-footer nav{display:flex;gap:13px 22px;flex-wrap:wrap}.wda-footer p{color:#52647a;margin:25px 0 0;padding-top:20px;border-top:1px solid #bccde2}.wda-table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}.wda-table th,.wda-table td{padding:12px;border-bottom:1px solid var(--line);text-align:left;overflow-wrap:anywhere}.wda-table th{background:var(--pale)}.wda-skip{position:absolute;left:12px;top:-80px;background:white;z-index:5}.wda-skip:focus{top:8px}
@media(max-width:1050px){.wda-header .wda-wrap{align-items:flex-start;flex-direction:column;gap:4px;padding:14px 0}.wda-nav{justify-content:flex-start}.wda-hero-text{padding-right:25px}.wda-hero-grid{grid-template-columns:40% 60%}.wda-article{grid-template-columns:minmax(0,1fr) 230px;gap:30px}.wda-home-start{gap:35px;grid-template-columns:225px minmax(0,1fr)}}
@media(max-width:760px){.wda-wrap{width:calc(100% - 36px)}body{font-size:15px}.wda-brand{font-size:18px}.wda-brand svg{width:35px;height:35px}.wda-nav{gap:0;font-size:12px}.wda-nav a{padding:6px 8px}.wda-hero{background:var(--blue);padding:22px 0 30px}.wda-hero-grid{display:block}.wda-hero-text{padding:0;max-width:600px}.wda-hero-text h1{font-size:30px;line-height:1.5;margin-bottom:16px}.wda-hero-text p{margin-bottom:22px}.wda-hero-art{margin:30px 3px 0;transform:none}.wda-content{padding:34px 0 45px}.wda-home-start{display:block;margin:0 0 35px}.wda-platforms{margin-bottom:35px}.wda-platform-item{padding:12px 0}.wda-article{display:block}.wda-aside{margin:0 0 34px}.wda-section h2{font-size:23px}.wda-subtitle{font-size:24px}.wda-section{padding-bottom:23px;margin-bottom:24px}.wda-mid{margin:22px 0 35px;padding:24px 20px}.wda-mid-title{font-size:22px}.wda-summary{grid-template-columns:1fr;gap:25px}.wda-table th,.wda-table td{padding:9px 6px;font-size:12px}.wda-footer-main{display:block}.wda-footer nav{margin-top:23px}.wda-utility h1{font-size:29px}.wda-steps li{padding-left:49px}.wda-faq summary{font-size:17px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* 手机导航按四列、三列排布，避免六项挤一行后剩一项孤行。 */
@media(max-width:760px){.wda-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));width:100%;gap:2px 4px}.wda-nav a{text-align:center;white-space:nowrap;padding:6px 3px}}

/* 标志链接仅含图形；站名作为独立文字与图形分开。 */
.wda-identity{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:19px;font-weight:700;white-space:nowrap}.wda-brand{flex-shrink:0}.wda-footer .wda-identity{font-size:17px}
@media(max-width:760px){.wda-identity{font-size:18px;gap:11px}}