:root{--navy: #142c52;--navy-deep: #0b1a35;--sky: #2ea3e8;--sky-soft: #e9f5fe;--sky-line: #cde9fa;--violet: #7c6cf0;--mint: #34d399;--amber: #ffb020;--ink: #1e2a3a;--muted: #66788f;--line: #e7eef5;--bg: #fbfdff;--card: #ffffff;--r-lg: 22px;--r-md: 16px;--shadow: 0 12px 40px rgba(20, 44, 82, .1);--shadow-lg: 0 26px 70px rgba(20, 44, 82, .16);--ease: cubic-bezier(.2, .7, .3, 1);--font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%}::selection{background:var(--sky);color:#fff}.wrap{max-width:1120px;margin:0 auto;padding:0 24px}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--sky);text-transform:uppercase;margin-bottom:14px}.eyebrow:before{content:"";width:22px;height:2px;border-radius:1px;background:linear-gradient(90deg,var(--sky),var(--violet))}.grad-text{background:linear-gradient(120deg,var(--sky) 10%,var(--violet) 60%,#b388ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s var(--ease);will-change:opacity,transform}.reveal.in{opacity:1;transform:none}.site-header{position:sticky;top:0;z-index:50;background:#fbfdffc7;backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);border-bottom:1px solid rgba(231,238,245,.7);transition:box-shadow .3s}.site-header.scrolled{box-shadow:0 8px 30px #142c521a}.site-header .wrap{display:flex;align-items:center;height:70px;gap:28px}.logo{font-size:27px;font-weight:800;font-style:italic;letter-spacing:-.5px;-webkit-user-select:none;user-select:none;line-height:1}.logo .l-sky{color:var(--navy)}.logo .l-tree{background:linear-gradient(120deg,var(--sky),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}.nav{display:flex;gap:2px;margin-left:auto;align-items:center}.nav a{padding:9px 15px;border-radius:999px;font-size:15px;color:var(--muted);transition:.25s var(--ease);white-space:nowrap;font-weight:500}.nav a:hover{color:var(--navy);background:var(--sky-soft);transform:translateY(-1px)}.nav a.active{color:#fff;background:linear-gradient(135deg,var(--navy),#274b7d);font-weight:600;box-shadow:0 6px 18px #142c5240}.nav .nav-cta{margin-left:10px;padding:10px 22px;border-radius:999px;font-size:14px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--sky),var(--violet));box-shadow:0 8px 22px #2ea3e859}.nav .nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 28px #7c6cf066;background:linear-gradient(135deg,var(--sky),var(--violet));color:#fff}.burger{display:none;margin-left:auto;font-size:22px;background:none;border:none;cursor:pointer;color:var(--navy)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:700;cursor:pointer;border:none;transition:.28s var(--ease);position:relative;overflow:hidden}.btn-primary{background:linear-gradient(135deg,var(--sky) 0%,var(--violet) 100%);color:#fff;box-shadow:0 10px 28px #2ea3e861}.btn-primary:after{content:"";position:absolute;top:0;left:-80%;width:50%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skew(-20deg);transition:left .6s ease}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px #7c6cf06b}.btn-primary:hover:after{left:130%}.btn-ghost{background:#ffffff1f;color:#fff;border:1.5px solid rgba(255,255,255,.4);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.btn-ghost:hover{background:#ffffff38;transform:translateY(-2px)}.btn-outline{background:#fff;color:var(--navy);border:1.5px solid var(--sky-line);box-shadow:0 4px 14px #142c520f}.btn-outline:hover{border-color:var(--sky);background:var(--sky-soft);transform:translateY(-2px);box-shadow:var(--shadow)}.btn-dark{background:linear-gradient(135deg,var(--navy),#274b7d);color:#fff;box-shadow:0 8px 22px #142c524d}.btn-dark:hover{transform:translateY(-2px)}.hero-mesh{position:relative;overflow:hidden;color:#fff;background:linear-gradient(165deg,#0a1830,#10294f 45%,#17457f 78%,#1b5fa8)}.hero-mesh .mesh{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background:radial-gradient(640px 420px at 12% 18%,rgba(46,163,232,.38),transparent 65%),radial-gradient(560px 460px at 88% 12%,rgba(124,108,240,.34),transparent 65%),radial-gradient(520px 420px at 78% 88%,rgba(52,211,153,.2),transparent 65%),radial-gradient(480px 380px at 18% 85%,rgba(255,176,32,.12),transparent 65%)}.hero-mesh .grid-overlay{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(80% 80% at 50% 40%,#000 30%,transparent 100%);-webkit-mask-image:radial-gradient(80% 80% at 50% 40%,#000 30%,transparent 100%)}.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none;animation:drift 14s ease-in-out infinite alternate}.blob.b1{width:340px;height:340px;left:-90px;top:-70px;background:#2ea3e8}.blob.b2{width:300px;height:300px;right:-70px;top:8%;background:#7c6cf0;animation-delay:-5s}.blob.b3{width:260px;height:260px;right:22%;bottom:-110px;background:#34d399;opacity:.32;animation-delay:-9s}@keyframes drift{0%{transform:translate(0) scale(1)}to{transform:translate(46px,34px) scale(1.12)}}.hero-mesh .wrap{position:relative;z-index:2;padding:110px 24px 120px}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:1px;color:#fff;background:#ffffff1f;border:1px solid rgba(255,255,255,.25);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);margin-bottom:26px}.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 12px var(--mint);animation:pulse 2s infinite}@keyframes pulse{50%{opacity:.5}}.hero-mesh h1{font-size:clamp(40px,6vw,68px);line-height:1.22;font-weight:800;letter-spacing:1px}.hero-mesh h1 .hl{background:linear-gradient(100deg,#7dd3fc,#c4b5fd 60%,#6ee7b7);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-mesh .sub{margin-top:22px;font-size:17.5px;color:#ffffffd1;max-width:600px;line-height:1.9}.hero-cta{margin-top:36px;display:flex;gap:16px;flex-wrap:wrap}.hero-stats{display:flex;gap:44px;margin-top:56px;flex-wrap:wrap}.hero-stats .stat b{display:block;font-size:34px;font-weight:800;letter-spacing:.5px}.hero-stats .stat span{font-size:13.5px;color:#ffffffa6;letter-spacing:1px}.hero-wave{position:relative;z-index:2;display:block;width:100%;height:70px;margin-bottom:-1px}.marquee{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;padding:16px 0}.marquee-track{display:flex;gap:0;width:max-content;animation:scrollX 26s linear infinite}.marquee-track span{display:inline-flex;align-items:center;gap:26px;padding-right:26px;font-size:15px;font-weight:700;letter-spacing:4px;color:var(--navy);white-space:nowrap}.marquee-track span i{font-style:normal;background:linear-gradient(135deg,var(--sky),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}@keyframes scrollX{to{transform:translate(-50%)}}.section{padding:88px 0;position:relative}.section-soft{background:linear-gradient(180deg,#f4f9fe 0%,var(--bg) 100%)}.sec-head{text-align:center;margin-bottom:52px}.sec-head h2{font-size:clamp(28px,3.4vw,38px);color:var(--navy);font-weight:800;letter-spacing:2px}.sec-head p{color:var(--muted);margin-top:12px;font-size:15.5px}.sec-head .bar{width:56px;height:5px;border-radius:3px;background:linear-gradient(90deg,var(--sky),var(--violet));margin:16px auto 0;box-shadow:0 4px 12px #2ea3e859}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.tcard{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 30px 30px;position:relative;overflow:hidden;transition:.35s var(--ease)}.tcard:before{content:"";position:absolute;top:-70px;right:-70px;width:190px;height:190px;border-radius:50%;opacity:.14;transition:.35s var(--ease)}.tcard.g-blue:before{background:var(--sky)}.tcard.g-violet:before{background:var(--violet)}.tcard.g-mint:before{background:var(--mint)}.tcard:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}.tcard:hover:before{transform:scale(1.5);opacity:.2}.tcard .tile{width:62px;height:62px;border-radius:19px;display:grid;place-items:center;font-size:29px;margin-bottom:22px;color:#fff;box-shadow:0 10px 24px #142c522e;transition:.35s var(--ease)}.tcard.g-blue .tile{background:linear-gradient(135deg,#2ea3e8,#1b6fd0)}.tcard.g-violet .tile{background:linear-gradient(135deg,#7c6cf0,#5a3fd4)}.tcard.g-mint .tile{background:linear-gradient(135deg,#34d399,#0ea371)}.tcard:hover .tile{transform:rotate(-8deg) scale(1.06)}.tcard h3{font-size:22px;color:var(--navy);margin-bottom:10px;letter-spacing:1px}.tcard p{color:var(--muted);font-size:14.5px}.tcard .more{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-weight:700;font-size:14.5px;background:linear-gradient(120deg,var(--sky),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}.tcard .more .arr{transition:.3s var(--ease)}.tcard:hover .more .arr{transform:translate(6px)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px 28px;transition:.3s var(--ease);position:relative;overflow:hidden}.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}.card .icon{width:58px;height:58px;border-radius:18px;display:grid;place-items:center;font-size:27px;margin-bottom:18px;background:linear-gradient(135deg,var(--sky-soft),#e3ecff)}.card h3{font-size:20px;color:var(--navy);margin-bottom:10px}.card p{color:var(--muted);font-size:14.5px}.card .more{display:inline-block;margin-top:16px;font-weight:700;font-size:14px;background:linear-gradient(120deg,var(--sky),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}.list-card{display:flex;gap:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;transition:.3s var(--ease);align-items:center;position:relative;overflow:hidden}.list-card:after{content:"→";position:absolute;right:26px;top:50%;transform:translateY(-50%) translate(-8px);font-size:22px;font-weight:700;background:linear-gradient(120deg,var(--sky),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent;opacity:0;transition:.3s var(--ease)}.list-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:var(--sky-line)}.list-card:hover:after{opacity:1;transform:translateY(-50%) translate(0)}.list-card+.list-card{margin-top:18px}.list-card .date-badge{flex-shrink:0;width:68px;height:68px;border-radius:18px;background:linear-gradient(135deg,var(--sky-soft),#e6edff);color:var(--navy);display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:800;font-size:20px}.list-card .date-badge small{font-size:11px;color:var(--muted);font-weight:500}.list-card h3{font-size:18.5px;color:var(--navy);margin-bottom:6px;padding-right:30px}.list-card .meta{font-size:13px;color:var(--muted)}.list-card .excerpt{font-size:14px;color:var(--muted);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;padding-right:30px}.tag{display:inline-block;font-size:12px;padding:4px 13px;border-radius:999px;background:linear-gradient(135deg,var(--sky-soft),#e9e4ff);color:var(--navy);font-weight:700;margin-right:8px;letter-spacing:.5px}.pill{padding:10px 24px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;border:1.5px solid var(--line);background:#fff;color:var(--muted);margin:0 6px 10px;transition:.25s var(--ease);font-family:inherit}.pill:hover{border-color:var(--sky);color:var(--navy);transform:translateY(-1px)}.pill.on{color:#fff;border-color:transparent;background:linear-gradient(135deg,var(--navy),#2c5583);box-shadow:0 8px 20px #142c5247}.page-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#eef6fd 0%,var(--bg) 100%)}.page-hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background:radial-gradient(480px 300px at 12% 0%,rgba(46,163,232,.16),transparent 65%),radial-gradient(480px 300px at 88% 10%,rgba(124,108,240,.14),transparent 65%)}.page-hero .wrap{position:relative;padding:76px 24px 60px}.page-hero h1{font-size:clamp(32px,4.4vw,46px);color:var(--navy);font-weight:800;letter-spacing:2px}.page-hero .sub{margin-top:12px;color:var(--muted);font-size:16px}.article{max-width:780px;margin:0 auto;padding:56px 24px 90px}.article h1{font-size:clamp(28px,3.6vw,38px);color:var(--navy);line-height:1.45;margin-bottom:14px;letter-spacing:.5px}.article .meta{color:var(--muted);font-size:14px;margin-bottom:36px;padding-bottom:26px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;flex-wrap:wrap}.md-body{font-size:17px}.md-body h2{font-size:23px;color:var(--navy);margin:38px 0 16px;padding-left:14px;border-left:5px solid;border-image:linear-gradient(180deg,var(--sky),var(--violet)) 1;letter-spacing:.5px}.md-body h3{font-size:19px;color:var(--navy);margin:28px 0 12px}.md-body p{margin:14px 0}.md-body ul,.md-body ol{margin:14px 0 14px 26px}.md-body li{margin:8px 0}.md-body li::marker{color:var(--sky);font-weight:700}.md-body blockquote{border:none;border-left:4px solid;border-image:linear-gradient(180deg,var(--sky),var(--violet)) 1;padding:14px 20px;color:var(--navy);margin:20px 0;background:linear-gradient(135deg,var(--sky-soft),#f2edff);border-radius:0 14px 14px 0;font-weight:500}.md-body code{background:var(--sky-soft);padding:2px 8px;border-radius:6px;font-size:14px;color:var(--navy)}.md-body pre{background:var(--navy-deep);color:#dbe7f5;padding:18px;border-radius:14px;overflow:auto;margin:18px 0}.md-body pre code{background:none;color:inherit;padding:0}.md-body a{color:var(--sky);font-weight:600}.md-body a:hover{text-decoration:underline}.md-body hr{border:none;border-top:1px solid var(--line);margin:30px 0}.md-body strong{color:var(--navy)}.form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px;box-shadow:var(--shadow)}.field{margin-bottom:18px}.field label{display:block;font-size:14px;font-weight:700;color:var(--navy);margin-bottom:8px}.field input,.field textarea,.field select{width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;transition:.25s;background:#fbfdff}.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--sky);background:#fff;box-shadow:0 0 0 4px #2ea3e81f}.field textarea{min-height:140px;resize:vertical}.field .hint{font-size:12.5px;color:var(--muted);margin-top:6px}.site-footer{position:relative;background:linear-gradient(180deg,#0d1e3a,var(--navy-deep));color:#ffffffb8;overflow:hidden}.site-footer:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--sky),var(--violet),var(--mint))}.site-footer:after{content:"";position:absolute;width:500px;height:260px;right:-140px;top:-120px;border-radius:50%;background:radial-gradient(circle,rgba(46,163,232,.22),transparent 70%);pointer-events:none}.site-footer .wrap{padding:60px 24px 30px;position:relative;z-index:1}.foot-grid{display:flex;justify-content:space-between;gap:36px;flex-wrap:wrap;margin-bottom:38px}.foot-grid .logo{font-size:32px}.foot-grid .logo .l-sky{color:#fff}.foot-grid h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:1px}.foot-grid a{display:block;font-size:14px;margin:9px 0;transition:.2s}.foot-grid a:hover{color:#7dd3fc;transform:translate(3px)}.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;font-size:13px;flex-wrap:wrap;gap:8px}.foot-bottom a:hover{color:#7dd3fc}.cta-band{position:relative;overflow:hidden;border-radius:28px;padding:64px 48px;color:#fff;background:linear-gradient(135deg,#12315d,#1b5fa8 55%,#7c6cf0 130%);box-shadow:var(--shadow-lg)}.cta-band:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(420px 260px at 85% 20%,rgba(255,255,255,.14),transparent 65%),radial-gradient(360px 240px at 10% 90%,rgba(52,211,153,.18),transparent 65%)}.cta-band h2{position:relative;font-size:clamp(26px,3.4vw,36px);letter-spacing:1px;margin-bottom:12px}.cta-band p{position:relative;color:#ffffffd1;margin-bottom:28px}.cta-band .btn{position:relative}.signup-box{background:linear-gradient(135deg,var(--sky-soft),#f2edff);border:1px solid var(--sky-line);border-radius:var(--r-lg);padding:36px;margin-top:48px;position:relative;overflow:hidden}.signup-box:before{content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(124,108,240,.18),transparent 70%)}.signup-box h3{color:var(--navy);margin-bottom:20px;font-size:21px;position:relative}.empty{text-align:center;color:var(--muted);padding:70px 20px}.empty .big{font-size:48px;margin-bottom:14px}.admin-shell{display:flex;min-height:100vh;background:#f4f7fb}.admin-side{width:224px;background:linear-gradient(180deg,var(--navy-deep),#12294d);color:#fffc;padding:24px 0;flex-shrink:0}.admin-side .logo{padding:0 24px 20px;font-size:24px}.admin-side .logo .l-sky{color:#fff}.admin-side a{display:block;padding:12px 24px;font-size:14.5px;transition:.15s;border-radius:0}.admin-side a:hover{background:#ffffff12;color:#fff}.admin-side a.active{background:#2ea3e82e;color:#fff;border-left:3px solid var(--sky)}.admin-main{flex:1;padding:34px;max-width:1020px}.admin-main h1{font-size:24px;color:var(--navy);margin-bottom:24px}.table{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;font-size:14px;box-shadow:var(--shadow)}.table th,.table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}.table th{background:#f6fafd;color:var(--navy);font-weight:700}.table tr:last-child td{border-bottom:none}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.link-btn{color:var(--sky);cursor:pointer;font-size:13.5px;margin-right:12px;background:none;border:none;font-family:inherit;font-weight:600}.link-btn:hover{text-decoration:underline}.link-btn.danger{color:#e05252}.login-box{max-width:400px;margin:12vh auto}.login-box .logo{text-align:center;font-size:38px;margin-bottom:8px;display:block}.login-box h2{text-align:center;color:var(--navy);margin-bottom:28px;font-size:20px}.hero{background:linear-gradient(135deg,var(--navy-deep) 0%,var(--navy) 55%,#1e4d8c 100%);color:#fff;border-radius:0 0 32px 32px;overflow:hidden;position:relative}.hero .wrap{padding:88px 24px 96px;position:relative;z-index:1}.hero h1{font-size:clamp(34px,5vw,54px);line-height:1.3;font-weight:800;letter-spacing:1px}.hero p{margin-top:18px;font-size:17px;color:#ffffffd1;max-width:560px}@media(max-width:860px){.grid3{grid-template-columns:1fr}.hero-stats{gap:28px}.cta-band{padding:48px 28px}}@media(max-width:760px){.nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fffffffa;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);flex-direction:column;padding:14px 20px 22px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);align-items:stretch}.nav.open{display:flex}.nav .nav-cta{margin:8px 0 0;text-align:center}.burger{display:block}.hero-mesh .wrap{padding:80px 24px 90px}.section{padding:64px 0}.admin-side{display:none}.foot-grid{flex-direction:column}.list-card:after{display:none}.list-card h3,.list-card .excerpt{padding-right:0}}@media(prefers-reduced-motion:reduce){.blob,.marquee-track,.hero-badge .dot{animation:none}.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}