:root{--blue:#174b8b;--ink:#172d45;--pale:#e8f3fb;--sky:#cbe7fa;--line:#c4d6e5;--text:#30475a}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--text);font:16px/1.9 'Noto Sans CJK SC','Microsoft YaHei',sans-serif}a{color:var(--blue);text-underline-offset:5px}a:hover{color:#0b2c54}a:focus-visible{outline:3px solid #c98400;outline-offset:5px}img{max-width:100%;height:auto;display:block}.wdb-wrap{width:min(1160px,calc(100% - 72px));margin:auto}.wdb-header{border-bottom:1px solid var(--line)}.wdb-header .wdb-wrap{display:flex;justify-content:space-between;align-items:center;gap:25px;min-height:92px}.wdb-brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-weight:700;font-size:19px;white-space:nowrap;text-decoration:none}.wdb-brand svg{width:44px;height:44px}.wdb-nav{display:flex;gap:19px;flex-wrap:wrap;justify-content:flex-end;font-size:14px}.wdb-nav a{color:var(--ink);text-decoration:none;padding:12px 0;border-bottom:3px solid transparent}.wdb-nav a[aria-current]{border-bottom-color:var(--blue)}.wdb-breadcrumb{font-size:12px;color:#64788b;margin:0 0 20px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wdb-breadcrumb a{color:#64788b}.wdb-hero{padding:26px 0 0;background:radial-gradient(ellipse at 50% 50%,#e6f4fe 0,#fff 68%);overflow:hidden}.wdb-hero-stage{position:relative;display:grid;grid-template-columns:21% 58% 21%;align-items:center;min-height:415px}.wdb-hero-text{text-align:center;padding:25px 16px;z-index:1}.wdb-hero h1{font-family:'Noto Serif CJK SC',SimSun,serif;font-size:clamp(31px,3.4vw,46px);font-weight:750;line-height:1.5;color:var(--ink);margin:0 0 24px;letter-spacing:-.035em}.wdb-hero-text p{font-size:15px;max-width:620px;margin:auto;line-height:1.95}.wdb-hero-art{width:390px;max-width:180%;border:1px solid #d4e5f4;box-shadow:0 17px 50px #214d7520;background:#fff;transform:rotate(-11deg);margin-left:-130px}.wdb-hero-art.right{transform:rotate(11deg);margin-left:20px;width:350px}.wdb-get-row{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;text-align:center;margin-top:30px;background:#fff}.wdb-get{display:inline-block;color:#fff!important;background:var(--blue);text-decoration:none;padding:11px 32px;border:1px solid var(--blue);border-radius:3px;font-weight:700;white-space:nowrap}.wdb-utility{padding:32px 0 38px;background:var(--pale)}.wdb-utility h1{font-family:'Noto Serif CJK SC',SimSun,serif;color:var(--ink);font-size:35px;line-height:1.5;margin:20px 0}.wdb-utility p{max-width:780px}.wdb-utility .wdb-get{margin-top:15px}.wdb-content{padding:45px 0 66px}.wdb-platforms{margin-bottom:55px}.wdb-platforms h2{font-size:25px;font-family:'Noto Serif CJK SC',SimSun,serif;color:var(--ink);margin:0 0 20px;text-align:center}.wdb-platform-list{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.wdb-platform-item{padding:22px 14px;display:block;text-align:center;color:var(--blue);text-decoration:none;border-right:1px solid var(--line);font-weight:650;font-size:14px}.wdb-platform-item:last-child{border-right:0}.wdb-platform-item span{display:block;font-size:12px;font-weight:400;color:#5d7488;margin-top:8px}.wdb-route{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;margin:15px 0 45px;border-bottom:2px solid var(--blue)}.wdb-route div{padding:26px;border-top:1px solid var(--line);border-right:1px solid var(--line)}.wdb-route div:last-child{border-right:0}.wdb-route strong{display:block;color:var(--blue);font-size:23px;margin-bottom:10px}.wdb-route p{margin:0;font-size:14px}.wdb-section{display:grid;grid-template-columns:34% 66%;padding:35px 0;border-top:1px solid var(--line);align-items:start}.wdb-section:nth-child(even){grid-template-columns:66% 34%}.wdb-section:nth-child(even) h2{order:2;padding:0 0 0 42px}.wdb-section:nth-child(even) p{order:1;padding:0}.wdb-section h2{font-family:'Noto Serif CJK SC',SimSun,serif;font-size:26px;line-height:1.7;margin:0;color:var(--ink);padding-right:45px}.wdb-section p{margin:0;line-height:2.05;border-left:0}.wdb-mid{margin:35px 0 48px;padding:25px 34px;background:var(--blue);color:white;display:grid;grid-template-columns:2fr 3fr;gap:25px}.wdb-mid-title{margin:0;font-size:24px;line-height:1.5;font-family:'Noto Serif CJK SC',SimSun,serif}.wdb-mid p:last-child{margin:0;font-size:14px}.wdb-subtitle{text-align:center;font-family:'Noto Serif CJK SC',SimSun,serif;font-size:28px;line-height:1.6;margin:45px 0 28px;color:var(--ink)}.wdb-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;padding:0;margin:0 0 55px;counter-reset:step;background:var(--pale)}.wdb-steps li{padding:22px 20px;border-right:1px solid #b2ccdf;counter-increment:step}.wdb-steps li:last-child{border-right:0}.wdb-steps li:before{content:'阶段 ' counter(step);font-size:12px;color:var(--blue)}.wdb-steps h3{font-size:18px;color:var(--ink);margin:10px 0}.wdb-steps p{font-size:14px;margin:0}.wdb-faq-item{display:grid;grid-template-columns:39fr 61fr;padding:24px 0;border-top:1px solid var(--line);gap:25px}.wdb-faq-item h3{font-size:18px;line-height:1.75;color:var(--blue);margin:0;padding-right:24px}.wdb-faq-item p{margin:0;font-size:15px}.wdb-summary{background:var(--pale);margin-top:40px;padding:30px;border-left:5px solid var(--blue)}.wdb-summary p{margin:0 0 20px}.wdb-links{display:flex;gap:12px 25px;flex-wrap:wrap;font-size:14px}.wdb-footer{background:#dceaf5;padding:36px 0;font-size:13px}.wdb-footer-main{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}.wdb-footer nav{display:flex;gap:14px 23px;flex-wrap:wrap}.wdb-footer .wdb-brand{font-size:18px}.wdb-footer p{padding-top:20px;margin:25px 0 0;border-top:1px solid #a7c3d9;color:#415e77}.wdb-table{border-collapse:collapse;width:100%;margin:26px 0;font-size:14px}.wdb-table th,.wdb-table td{padding:15px;border-bottom:1px solid var(--line);text-align:left;overflow-wrap:anywhere}.wdb-table th{background:var(--pale)}.wdb-tasklinks{display:flex;gap:25px;flex-wrap:wrap;margin:24px 0 40px}.wdb-reading{max-width:840px;margin:0 auto 45px}.wdb-reading h2{font-family:'Noto Serif CJK SC',SimSun,serif;font-size:28px;color:var(--ink)}.wdb-reading p{margin:14px 0}.wdb-skip{position:absolute;top:-80px;left:10px;z-index:5;background:#fff}.wdb-skip:focus{top:10px}
@media(max-width:1020px){.wdb-header .wdb-wrap{display:block;padding:16px 0}.wdb-nav{justify-content:flex-start;gap:20px;margin-top:9px}.wdb-hero-stage{grid-template-columns:12% 76% 12%;min-height:390px}.wdb-hero-art{margin-left:-220px}.wdb-hero-art.right{margin-left:0}.wdb-platform-item{font-size:12px;padding:18px 8px}.wdb-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.wdb-steps li{border-bottom:1px solid #b2ccdf}.wdb-steps li:nth-child(even){border-right:0}}
@media(max-width:760px){body{font-size:15px}.wdb-wrap{width:calc(100% - 36px)}.wdb-brand{font-size:18px}.wdb-brand svg{width:36px;height:36px}.wdb-nav{gap:0 16px;font-size:12px}.wdb-nav a{padding:6px 0}.wdb-hero{padding-top:20px}.wdb-hero-stage{display:flex;flex-wrap:wrap;min-height:0;justify-content:space-between}.wdb-hero-text{order:0;width:100%;padding:14px 0 25px}.wdb-hero h1{font-size:30px;margin-bottom:20px;line-height:1.6}.wdb-hero-text p{text-align:left}.wdb-hero-art{order:1;margin:0;width:46%;max-width:none;transform:rotate(-4deg)}.wdb-hero-art.right{order:2;margin:0;width:46%;transform:rotate(4deg)}.wdb-get-row{margin-top:28px;padding:20px 0}.wdb-content{padding:30px 0 45px}.wdb-platform-list{grid-template-columns:1fr 1fr}.wdb-platform-item{border-bottom:1px solid var(--line);padding:17px 8px;font-size:13px}.wdb-platform-item:nth-child(even){border-right:0}.wdb-platform-item:last-child{grid-column:1/-1;border-bottom:0}.wdb-platforms{margin-bottom:35px}.wdb-route{display:block}.wdb-route div{padding:20px 0;border-right:0}.wdb-route strong{font-size:21px}.wdb-section,.wdb-section:nth-child(even){display:block;padding:28px 0}.wdb-section h2,.wdb-section:nth-child(even) h2{font-size:24px;padding:0;margin-bottom:18px}.wdb-mid{display:block;padding:25px 20px;margin:26px 0 35px}.wdb-mid-title{font-size:23px;margin-bottom:12px}.wdb-subtitle{font-size:26px;margin-top:32px}.wdb-steps{display:block}.wdb-steps li{padding:20px;border-right:0}.wdb-faq-item{display:block;padding:23px 0}.wdb-faq-item h3{margin-bottom:12px;padding:0;font-size:18px}.wdb-summary{padding:23px 19px}.wdb-links{font-size:13px;gap:12px 18px}.wdb-footer-main{display:block}.wdb-footer nav{margin-top:20px}.wdb-table th,.wdb-table td{font-size:12px;padding:10px 6px}.wdb-utility h1{font-size:29px}.wdb-get{padding:11px 27px}}
@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){.wdb-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));width:100%;gap:2px 4px}.wdb-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。 */
.wdb-identity{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:19px;font-weight:700;white-space:nowrap}.wdb-brand{flex-shrink:0}.wdb-footer .wdb-identity{font-size:18px}
@media(max-width:760px){.wdb-identity{font-size:18px;gap:11px}}