:root{color-scheme:light;--bg:#ffffff;--panel:#f7f7f7;--line:#e3e5e4;--text:#171717;--muted:#646967;--accent:#167456;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button{font:inherit;cursor:pointer}button,a,summary{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:6px}p{color:var(--muted);margin:0 0 20px}h1,h2,h3{line-height:1.3;margin:0 0 20px;letter-spacing:-.035em}h2{font-size:clamp(28px,3vw,42px)}h3{font-size:21px}small,.small{font-size:14px;color:var(--muted)}.wrap{width:min(var(--max),calc(100% - 64px));margin:auto}.skip{position:fixed;top:-100px;left:20px;z-index:100;background:#171717;color:#ffffff;padding:10px}.skip:focus{top:10px}.site-header{position:sticky;top:0;z-index:20;background:#ffffffef;border-bottom:1px solid #e9e9e9;backdrop-filter:blur(16px)}.header-inner{display:flex;align-items:center;gap:32px;min-height:82px}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:750;letter-spacing:-1px;white-space:nowrap}.brand-mark{display:grid;place-items:center;background:#171717;color:#ffffff;width:31px;height:34px;font-size:25px;clip-path:polygon(25% 0,100% 0,100% 75%,75% 100%,0 100%,0 25%)}.brand em{font-style:normal;color:var(--accent)}nav{display:flex;gap:28px;margin-left:auto;align-items:center;font-size:14px;color:#545957}nav a[aria-current=page]{color:var(--accent)}.btn{display:inline-flex;justify-content:center;align-items:center;gap:18px;border:1px solid var(--line);border-radius:5px;padding:12px 24px;font-size:15px;font-weight:600;background:transparent;color:var(--text);transition:background .2s,transform .2s}.btn:hover{background:#ededed;color:#171717;transform:translateY(-2px)}.btn.primary{background:#171717;border-color:#171717;color:#ffffff}.btn.primary:hover{background:#343434}.header-inner>.btn{padding:9px 19px;white-space:nowrap;margin-left:4px}.eyebrow{font:12px/1.5 Consolas,monospace;letter-spacing:2.4px;color:var(--accent);text-transform:uppercase;margin-bottom:20px}.pill{display:inline-flex;align-items:center;gap:10px;border:1px solid #d9e1dd;border-radius:30px;padding:5px 13px;color:#53685e;font-size:12px;letter-spacing:.5px}.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px #16745630}.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:radial-gradient(ellipse at 78% 44%,#eff3f1,transparent 53%)}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;min-height:650px;gap:35px}.hero-copy{position:relative;z-index:2;padding:64px 0}.hero h1{font-size:clamp(55px,6.8vw,94px);letter-spacing:-5px;margin:22px 0 18px;line-height:1.03;font-weight:650}.hero h1 span{color:var(--accent)}.hero h2{font-size:clamp(24px,2.7vw,36px);font-weight:500;margin-bottom:22px;letter-spacing:-1px}.hero-copy>p{max-width:480px;font-size:16px;line-height:1.9}.actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 22px}.hero-meta{font:12px/1.8 Consolas,"Microsoft YaHei",monospace;color:#68756f;display:flex;gap:16px}.astra{position:relative;width:100%;aspect-ratio:1;display:grid;place-items:center;isolation:isolate}.astra:before{content:"";position:absolute;inset:2%;background:radial-gradient(circle,#bdd6c933,transparent 63%);filter:blur(16px)}.orb{position:absolute;width:86%;height:86%;border:1px solid #bdd0c5;border-radius:50%;box-shadow:inset 0 0 60px #ffffff00,0 0 50px #f5f7f5}.orb:before,.orb:after{content:"";position:absolute;inset:10%;border:1px solid #cddbd3;border-radius:50%}.orb:after{inset:-9%;border-style:dashed;border-color:#dce4df}.axis{position:absolute;width:110%;height:36%;border:1px solid #9cbbaa;border-radius:50%;transform:rotate(-32deg);box-shadow:0 0 13px #ddebe233}.axis.second{transform:rotate(45deg);width:91%;height:40%;border-color:#c2d4c9}.six{font:500 clamp(220px,28vw,390px)/1 Arial,sans-serif;letter-spacing:-30px;padding-right:20px;color:transparent;background:linear-gradient(145deg,#d5e5dc 15%,#8fb79f 47%,#345d4c 78%);background-clip:text;-webkit-background-clip:text;text-shadow:0 0 100px #b7cbbd20}.orb-label{position:absolute;font:11px/1.5 Consolas,monospace;letter-spacing:2px;color:#647e6e}.orb-label.top{top:7%;left:10%}.orb-label.bottom{bottom:4%;right:2%}.cross{position:absolute;color:#397158;right:6%;top:27%;font-size:30px;font-weight:200}.stats{display:grid;grid-template-columns:repeat(4,1fr);padding:32px 0;border-bottom:1px solid var(--line)}.stat{padding:0 30px;border-right:1px solid var(--line)}.stat:first-child{padding-left:0}.stat:last-child{border:0}.stat strong{font-size:32px;line-height:1.2;font-weight:500;letter-spacing:-1px}.stat span{display:block;font-size:13px;color:var(--muted);margin-top:9px}.section{padding:88px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.section-head h2{margin-bottom:10px}.section-head p{margin:0;max-width:580px}.text-link{white-space:nowrap;color:var(--accent);font-size:14px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{padding:30px;background:linear-gradient(140deg,#f7f8f7,#f7f8f7);border:1px solid var(--line);border-radius:8px}.card .icon{color:var(--accent);font:24px/1.5 Consolas,monospace;margin-bottom:30px;display:block}.card p{font-size:15px;margin-bottom:24px}.card small{font:12px/1.5 Consolas,monospace;letter-spacing:1px;color:#607b6c}.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}.list-row{display:flex;align-items:start;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.list-row:first-child{padding-top:0}.list-row .num{color:var(--accent);font:14px/2 Consolas,monospace}.list-row h3{font-size:19px;margin-bottom:8px}.list-row p{margin:0;font-size:15px}.data-panel{background:#f7f8f7;border:1px solid var(--line);border-radius:8px;padding:26px}.panel-top{font:12px/1.5 Consolas,monospace;letter-spacing:2px;color:#5c7567;padding-bottom:20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}.data-panel dl{margin:0}.data-panel dl div{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-bottom:1px solid #e1e6e3;font-size:14px}.data-panel dt{color:var(--muted)}.data-panel dd{margin:0;text-align:right}.note{border-left:2px solid var(--accent);padding:14px 20px;background:#f4f7f5;font-size:14px;margin:26px 0;color:#596e62}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:7px}table{border-collapse:collapse;width:100%;min-width:650px;font-size:15px}th,td{padding:19px 23px;text-align:left;border-bottom:1px solid var(--line)}th{font-weight:500;color:var(--muted);background:#f7f8f7}td:nth-child(2),th:nth-child(2){background:#f5f7f5;color:#153d2e}tr:last-child td{border-bottom:0}caption{text-align:left;padding:16px 22px;color:var(--muted);font-size:14px}.read-card{display:block;padding:28px;border-top:1px solid var(--line);background:#f7f8f7}.read-card:hover{background:#eef2ef}.read-card h3{margin-top:20px}.read-card p{font-size:15px}.read-card .arrow{color:var(--accent)}details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:20px}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--accent)}details[open] summary:after{content:"−"}details p{padding:16px 32px 0 0;margin:0;font-size:15px}.cta-band{margin:72px auto;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px;border:1px solid #e0e6e2;background:radial-gradient(ellipse at right,#e8efea,transparent 75%);border-radius:8px}.cta-band h2{font-size:30px;margin:0 0 10px}.cta-band p{margin:0}.cta-band .actions{margin:0;flex-shrink:0}footer{border-top:1px solid var(--line);padding:42px 0 25px}.footer-top{display:flex;justify-content:space-between;gap:30px;margin-bottom:30px}.footer-top p{font-size:13px;margin:10px 0 0}.footer-links{display:flex;gap:25px;align-items:start;font-size:14px}.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:#69726d;font-size:12px}.breadcrumb{color:var(--muted);font-size:14px;margin:35px 0}.article-head{padding:24px 0 44px;border-bottom:1px solid var(--line);max-width:850px}.article-head h1{font-size:clamp(36px,5vw,60px)}.article-head p{font-size:18px}.article-body{max-width:880px;padding:40px 0 70px}.article-body h2{font-size:28px;margin:38px 0 20px}.article-body h3{margin-top:30px}.article-body p,.article-body li{color:#555e59}.article-body a:not(.btn){color:var(--accent);text-decoration:underline;text-underline-offset:4px}.article-body li{margin:10px 0}.article-body pre{overflow:auto;background:#f4f6f4;border:1px solid var(--line);padding:24px;border-radius:6px;font-size:14px;line-height:1.8}.article-body code{font-family:Consolas,monospace}.sources{font-size:14px;border-top:1px solid var(--line);margin-top:40px;padding-top:24px}.sources a{display:block;overflow-wrap:anywhere}.modal{color:#14271f;background:#ffffff;border:0;border-radius:15px;padding:38px;width:min(420px,calc(100% - 32px));max-height:90dvh;text-align:center;box-shadow:0 20px 100px #0008}.modal::backdrop{background:#02070bcc;backdrop-filter:blur(7px)}.modal h2{font-size:23px;margin:14px 0 9px}.modal p{font-size:13px;color:#606a64}.modal img{display:block;width:min(270px,100%);height:auto;margin:22px auto 18px;border-radius:8px}.modal-close{position:absolute;right:12px;top:8px;border:0;background:transparent;color:#171717;font-size:28px;width:40px;height:40px}.modal .eyebrow{color:#536b5d;margin-top:8px}.modal .small{color:#606a64}.menu-button{display:none}.locked{overflow:hidden}@media(min-width:1000px){.astra{animation:float 9s ease-in-out infinite}@keyframes float{50%{transform:translateY(-10px)}}}@media(max-width:980px){.header-inner{gap:16px}nav{gap:16px}.hero-grid{min-height:560px;gap:0}.hero h1{font-size:72px}.hero-meta{flex-wrap:wrap;gap:3px 15px}.split{gap:35px}.cta-band{flex-direction:column;align-items:flex-start}.cards{gap:12px}.card{padding:22px}.stat{padding:0 18px}.stat strong{font-size:27px}}@media(max-width:760px){.wrap{width:calc(100% - 36px)}.header-inner{min-height:70px;flex-wrap:wrap;gap:12px}.brand{font-size:20px}.header-inner>.btn{margin-left:auto;font-size:13px;padding:8px 14px}.menu-button{display:block;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:4px;padding:5px 10px;font-size:14px}nav{order:4;width:100%;margin:0;display:flex;overflow:auto;padding-bottom:13px;gap:22px;white-space:nowrap}nav[data-collapsed=true]{display:none}.hero-grid{display:flex;flex-direction:column;min-height:0;gap:0}.hero-copy{padding:46px 0 0;width:100%}.hero h1{font-size:clamp(58px,12vw,85px);letter-spacing:-3px}.hero h2{font-size:26px}.hero-copy>p{font-size:15px}.astra{width:min(400px,100%);margin:10px auto 28px}.six{font-size:270px}.hero-meta{font-size:11px}.stats{grid-template-columns:repeat(2,1fr);gap:25px 0}.stat{padding:0 20px!important}.stat:nth-child(2){border:0}.stat strong{font-size:28px}.section{padding:55px 0}.section-head{display:block}.section-head>.text-link{display:inline-block;margin-top:15px}.cards,.split{grid-template-columns:1fr}.card .icon{margin-bottom:15px}.card p{margin-bottom:15px}.card{padding:25px}.split{gap:35px}.cta-band{padding:28px;margin:45px auto}.cta-band .actions{gap:10px}.cta-band .btn{padding:10px 18px}.footer-top,.footer-bottom{flex-direction:column}.footer-links{flex-wrap:wrap;gap:15px 22px}.article-head h1{font-size:36px}.article-body{padding-top:10px}.modal{padding:30px 23px}summary{font-size:16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
/* Light editorial sections */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.plan{padding:30px;border:1px solid var(--line);border-radius:14px;background:#f8f9f8;display:flex;flex-direction:column}
.plan.featured{background:#edf5ef;border-color:#c2d4c7}
.plan-top{display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap}
.plan-top h3{font-size:22px;margin:0}.plan-top span{font-size:12px;color:#657269}
.plan-price{font-size:clamp(25px,3vw,37px);font-weight:550;letter-spacing:-1.5px;line-height:1.3;margin-top:30px}
.plan-unit{color:var(--muted);font-size:14px;min-height:26px;margin:7px 0 23px}
.plan p{font-size:14px;padding-top:20px;border-top:1px solid #dfe5e1;margin:auto 0 0}
.pricing-note{margin-top:23px;line-height:1.9}.pricing-note a{text-decoration:underline;text-underline-offset:3px}
.photo-section{padding:72px 0;border-bottom:1px solid var(--line)}
.photo-section figure{margin:0}.photo-section img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:16px}
.photo-section .split{grid-template-columns:1.3fr 1fr;align-items:center;gap:55px}
.photo-section figcaption{font-size:12px;color:var(--muted);margin-top:12px}
.photo-section h2{font-size:clamp(30px,3.5vw,45px)}
@media(max-width:760px){.plans{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.plan{padding:22px}.plan-price{font-size:27px}.photo-section{padding:50px 0}.photo-section .split{grid-template-columns:1fr;gap:30px}}
@media(max-width:480px){.plans{grid-template-columns:1fr}.plan-price{font-size:34px}}