:root{--navy:#102033;--navy-deep:#081522;--green:#0f8f72;--green-dark:#08705a;--gold:#f3b23d;--paper:#f4f9fc;--ink:#102033;--muted:#67778a;--line:#dce5ee;--white:#fff;--max:1280px;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;background:var(--paper)}button,input,select{font:inherit}button,a{transition:.2s ease}a{color:inherit;text-decoration:none}.site-header{position:fixed;z-index:10;top:0;left:0;width:100%;height:78px;padding:0 max(5vw,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between;color:#fff;border-bottom:1px solid rgba(255,255,255,.14);transition:.25s}.site-header.scrolled{height:68px;background:rgba(8,21,34,.94);backdrop-filter:blur(16px);box-shadow:0 10px 30px rgba(0,0,0,.18)}.brand{display:inline-flex;align-items:center;gap:11px}.brand-mark{display:grid;width:38px;height:38px;place-items:center;border-radius:8px;background:var(--green);font-size:23px;font-weight:900}.brand strong,.brand small{display:block}.brand strong{font-size:16px;letter-spacing:.03em}.brand small{font-size:11px;opacity:.7;margin-top:1px}.site-header nav{display:flex;gap:34px;font-size:14px}.site-header nav a{opacity:.78}.site-header nav a:hover{opacity:1;color:#bafbe7}.button{min-height:48px;padding:0 24px;border:0;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-weight:700}.button-primary{color:#fff;background:var(--green);box-shadow:0 12px 30px rgba(15,143,114,.24)}.button-primary:hover{background:var(--green-dark);transform:translateY(-2px)}.button-ghost{color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.42)}.button-ghost:hover{background:rgba(255,255,255,.15)}.header-cta{min-height:42px;padding:0 19px}.hero{position:relative;min-height:690px;padding:150px max(5vw,calc((100vw - var(--max))/2)) 90px;display:flex;align-items:center;overflow:hidden;color:#fff;background:radial-gradient(circle at 78% 40%,#153f50 0,transparent 26%),linear-gradient(115deg,var(--navy-deep),var(--navy) 58%,#0b2f36)}.hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(90deg,transparent 30%,#000)}.hero-content{position:relative;z-index:2;max-width:710px;animation:rise .7s ease both}.hero h1{font-size:clamp(58px,7vw,94px);line-height:1.03;letter-spacing:-.055em;margin:0 0 30px}.hero p{max-width:650px;margin:0 0 38px;color:rgba(255,255,255,.76);font-size:20px;line-height:1.85}.hero-actions{display:flex;gap:14px}.hero-art{position:absolute;z-index:1;right:5%;top:18%;width:430px;height:430px;opacity:.9}.screen{position:absolute;inset:66px 20px 36px 50px;transform:perspective(900px) rotateY(-16deg) rotateX(5deg);border:1px solid rgba(180,255,232,.28);border-radius:14px;background:rgba(8,21,34,.62);box-shadow:0 40px 90px rgba(0,0,0,.38),inset 0 0 60px rgba(15,143,114,.13);backdrop-filter:blur(8px);padding:22px}.screen>span{display:block;width:42%;height:7px;margin-bottom:13px;border-radius:5px;background:rgba(255,255,255,.14)}.screen>span:nth-child(2){width:66%;background:rgba(15,143,114,.65)}.screen-core{display:grid;place-items:center;width:170px;height:170px;margin:52px auto;border:1px solid rgba(130,255,220,.45);border-radius:50%;color:#b8ffe9;font-size:64px;font-weight:900;box-shadow:0 0 60px rgba(15,143,114,.35)}.orb{position:absolute;border-radius:50%;filter:blur(2px)}.orb-a{width:190px;height:190px;right:0;top:0;background:rgba(15,143,114,.16)}.orb-b{width:120px;height:120px;left:0;bottom:0;background:rgba(243,178,61,.1)}.scroll-hint{position:absolute;z-index:3;bottom:34px;right:max(5vw,calc((100vw - var(--max))/2));font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.48)}.scroll-hint span{margin-left:10px;color:#fff}.section{max-width:var(--max);margin:auto;padding:110px 0}.section-heading{display:grid;grid-template-columns:190px 1fr 1fr;align-items:end;gap:26px;margin-bottom:54px}.section-heading>p,.learning>div>p,.dialog-kicker{margin:0;color:var(--green);font-size:12px;font-weight:900;letter-spacing:.16em}.section-heading h2{margin:0;font-size:clamp(40px,5vw,66px);line-height:1.05;letter-spacing:-.045em}.section-heading>span{color:var(--muted);font-size:16px;line-height:1.7;max-width:400px;justify-self:end}.course-row{position:relative;display:grid;grid-template-columns:80px minmax(350px,1fr) 165px 150px 54px;gap:24px;align-items:center;min-height:192px;padding:30px 26px;border-top:1px solid var(--line);overflow:hidden;background:#fff}.course-row:last-child{border-bottom:1px solid var(--line)}.course-row:before{content:"";position:absolute;left:0;top:0;width:5px;height:100%;background:var(--green);transform:scaleY(0);transition:.25s}.course-row:hover:before{transform:scaleY(1)}.course-row:hover{transform:translateX(4px);box-shadow:0 18px 55px rgba(32,62,88,.08)}.course-gold:before{background:var(--gold)}.course-blue:before{background:#4384c8}.course-number{align-self:start;color:#9aa7b4;font-size:14px;font-weight:800}.course-main h3{margin:0 0 15px;font-size:27px;line-height:1.25}.course-main p{max-width:600px;margin:0;color:var(--muted);line-height:1.75}.course-meta span,.course-price span{display:block;margin-bottom:12px;color:#8795a4;font-size:12px}.course-meta strong{font-size:15px}.course-price strong{font-size:31px}.course-price em{font-size:15px;font-style:normal;margin-right:3px}.circle-button{width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--green);font-size:23px;cursor:pointer}.course-row:hover .circle-button{background:var(--green);color:#fff;border-color:var(--green);transform:rotate(45deg)}.learning{padding:100px max(5vw,calc((100vw - var(--max))/2));display:grid;grid-template-columns:1.2fr .8fr;gap:100px;align-items:end;color:#fff;background:var(--navy)}.learning h2{margin:20px 0 0;font-size:clamp(40px,5vw,68px);line-height:1.15;letter-spacing:-.04em}.learning-copy p{margin:0 0 32px;color:rgba(255,255,255,.7);font-size:18px;line-height:1.85}.faq{display:grid;grid-template-columns:1fr 1.8fr;gap:90px}.faq .section-heading{display:block}.faq .section-heading p{margin-bottom:20px}.faq-list details{border-top:1px solid var(--line);padding:27px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;list-style:none;font-size:19px;font-weight:700}summary::-webkit-details-marker{display:none}summary span{color:var(--green);font-size:26px;transition:.2s}details[open] summary span{transform:rotate(45deg)}details p{max-width:700px;margin:20px 45px 0 0;color:var(--muted);line-height:1.8}footer{padding:34px max(5vw,calc((100vw - var(--max))/2));display:flex;align-items:center;gap:40px;color:rgba(255,255,255,.55);background:var(--navy-deep);font-size:13px}footer .brand{margin-right:auto;color:#fff}footer p{margin:0}dialog{width:min(530px,calc(100vw - 30px));border:0;border-radius:12px;padding:42px;box-shadow:0 30px 100px rgba(0,0,0,.35)}dialog::backdrop{background:rgba(3,12,20,.75);backdrop-filter:blur(4px)}.dialog-close{position:absolute;right:18px;top:14px;border:0;background:none;color:#73808c;font-size:28px;cursor:pointer}.dialog-kicker{margin-bottom:14px}.dialog-copy{color:var(--muted);margin-bottom:28px}dialog h2{font-size:38px;margin:0 0 10px}form{display:grid;gap:16px}label{display:grid;gap:8px;color:#617080;font-size:13px;font-weight:700}input,select{height:48px;padding:0 13px;border:1px solid var(--line);border-radius:7px;background:#f8fafc;color:var(--ink);outline:none}input:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(15,143,114,.1)}.success{text-align:center;padding:30px 0}.success span{display:grid;width:64px;height:64px;margin:0 auto 20px;place-items:center;border-radius:50%;background:#e1f6ef;color:var(--green);font-size:30px}.success h3{font-size:25px;margin:0 0 8px}.success p{color:var(--muted)}@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}@media(max-width:1000px){.section{padding:85px 5vw}.section-heading{grid-template-columns:1fr}.section-heading>span{justify-self:start}.course-row{grid-template-columns:56px 1fr 130px}.course-price{grid-column:2}.circle-button{grid-column:3;grid-row:2}.hero-art{opacity:.35;right:-100px}.faq{grid-template-columns:1fr;gap:30px}.learning{grid-template-columns:1fr;gap:45px}}@media(max-width:700px){.site-header{position:absolute;height:68px;padding:0 20px}.site-header nav{display:none}.brand-mark{width:34px;height:34px}.header-cta{min-height:38px;padding:0 14px}.hero{min-height:650px;padding:115px 22px 75px}.hero h1{font-size:57px}.hero p{font-size:17px;line-height:1.75}.hero-art{width:340px;height:340px;top:250px;right:-145px;opacity:.28}.scroll-hint{display:none}.section{padding:72px 20px}.section-heading{margin-bottom:35px}.section-heading h2{font-size:43px}.course-row{grid-template-columns:42px 1fr;padding:24px 18px;gap:14px;min-height:0}.course-main,.course-meta,.course-price{grid-column:2}.course-main h3{font-size:23px}.circle-button{position:absolute;right:18px;bottom:22px;width:42px;height:42px}.learning{padding:75px 22px}.learning h2{font-size:42px}.faq{gap:15px}footer{align-items:flex-start;flex-direction:column;gap:18px;padding:32px 22px}footer .brand{margin:0}dialog{padding:34px 24px}.hero-actions{flex-wrap:wrap}.button{min-height:46px}}
