:root{
  --bg:#f4f6fa; --paper:#ffffff; --ink:#1b2438; --muted:#5a6478; --line:#e3e8f1;
  --primary:#2f54d4; --primary-ink:#1f3ea8;
  --amber:#f08c00; --green:#188a4e;
  --s0:#64748b; --s1:#2563eb; --s2:#8b5cf6; --s3:#0d9488; --s4:#4f46e5; --s5:#e8590c; --s6:#d6336c;
  --radius:14px;
  --shadow:0 1px 2px rgba(27,36,56,.04), 0 8px 24px -12px rgba(27,36,56,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.78;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--primary-ink)}
section[id]{scroll-margin-top:74px}
b,strong{font-weight:700}

/* ===== 品牌标识 ===== */
.hero-brand{display:flex;align-items:center;gap:16px;margin-bottom:36px}
.hero-logo{width:60px;height:60px;display:block;flex:none;border-radius:50%;filter:drop-shadow(0 10px 26px rgba(240,165,58,.32))}
.hero-brand-text{display:flex;flex-direction:column;gap:5px}
.hero-brand-name{font-size:15px;letter-spacing:.34em;font-weight:700;color:#f0b45a;text-transform:uppercase;padding-left:.34em;line-height:1.25}
.hero-brand-sub{font-size:13px;color:#8fa0d0;letter-spacing:.03em}
.nav-brand{display:inline-flex;align-items:center;gap:8px}
.nav-logo{width:26px;height:26px;display:block;flex:none;border-radius:50%}
.sign{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.sign-logo{width:42px;height:42px;display:block;border-radius:50%;opacity:.94;filter:drop-shadow(0 6px 18px rgba(240,165,58,.28))}
.sign-name{font-size:11.5px;letter-spacing:.3em;color:#8fa0d0;text-transform:uppercase;padding-left:.3em}

/* ===== 导航 ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1140px;margin:0 auto;display:flex;align-items:center;gap:2px;padding:10px 20px;overflow-x:auto;scrollbar-width:thin}
.brand{font-weight:800;color:var(--ink);white-space:nowrap;margin-right:12px;font-size:15px}
.nav a.navlink{white-space:nowrap;font-size:13.5px;color:var(--muted);text-decoration:none;padding:6px 11px;border-radius:8px;transition:.15s}
.nav a.navlink:hover{background:#eef2fa;color:var(--ink)}
.nav a.navlink.active{background:var(--ink);color:#fff}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:linear-gradient(150deg,#0b1027 0%,#141d45 45%,#1d2f7a 100%);color:#fff;padding:84px 24px 96px}
.hero::before{content:'';position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(900px 420px at 85% -10%,rgba(99,102,241,.5),transparent 60%),radial-gradient(600px 300px at 10% 110%,rgba(240,140,0,.22),transparent 60%)}
.hero::after{content:'';position:absolute;inset:0;pointer-events:none;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:44px 44px;-webkit-mask-image:linear-gradient(180deg,transparent,black 75%);mask-image:linear-gradient(180deg,transparent,black 75%)}
.hero-inner{position:relative;max-width:1000px;margin:0 auto}
.eyebrow{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:7px 14px;border-radius:999px;font-size:13px;letter-spacing:.06em}
.hero h1{font-size:clamp(34px,5.5vw,56px);line-height:1.15;margin:22px 0 18px;font-weight:800;letter-spacing:.01em}
.hero-sub{font-size:clamp(15px,2vw,17.5px);color:#c6d0ee;max-width:780px}
.hero-sub em{color:#ffd166;font-style:normal}
.hero-cta{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.btn-primary{background:var(--amber);color:#241500;font-weight:700;padding:13px 24px;border-radius:12px;text-decoration:none;box-shadow:0 8px 20px -8px rgba(240,140,0,.65);transition:.18s}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff;padding:13px 24px;border-radius:12px;text-decoration:none;transition:.18s}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.hero-stats{display:flex;gap:34px;margin-top:46px;flex-wrap:wrap}
.stat b{font-size:27px;display:block;line-height:1.3}
.stat span{font-size:13px;color:#9fb0dd}
.hero-note{margin-top:32px;font-size:12.5px;color:#8fa0d0}

/* ===== 通用区块 ===== */
.section{max-width:1140px;margin:0 auto;padding:58px 22px}
.section>h2{font-size:clamp(24px,3vw,31px);font-weight:800;margin-bottom:6px}
.sec-sub{color:var(--muted);margin-bottom:26px;max-width:860px;font-size:15px}

/* ===== 使用指南 ===== */
.use-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin:22px 0 4px}
.use-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.use-card .uc-tag{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:var(--s1);border-radius:6px;padding:2px 8px;margin-bottom:10px}
.use-card p{font-size:14px;color:var(--muted);line-height:1.75}
.use-card b{display:block;font-size:15px;margin-bottom:6px}
.principles{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);margin-top:16px}
.principles h3{font-size:16px;margin-bottom:4px}
.principles ol{margin:8px 0 0 22px;display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.note{background:#eef4ff;border:1px solid #cfe0ff;border-radius:10px;padding:13px 18px;font-size:13.5px;color:#28418f;margin-top:16px;line-height:1.8}

/* ===== 路线图 ===== */
.tl{margin:30px 0 8px;border-left:2px solid #d7deee;padding-left:32px;display:flex;flex-direction:column;gap:16px}
.tl-item{position:relative}
.tl-item::before{content:'';position:absolute;left:-43px;top:7px;width:18px;height:18px;border-radius:50%;background:var(--c);box-shadow:0 0 0 4px color-mix(in srgb,var(--c) 16%,#fff)}
.tl-item.is-done::before{background:var(--green);box-shadow:0 0 0 4px #dcf3e6}
.tl-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.tl-week{font-size:12px;color:var(--muted);background:#eef1f7;border:1px solid var(--line);border-radius:999px;padding:2px 10px}
.tl-desc{color:var(--muted);font-size:14.5px;margin-top:3px}
.progress{margin-top:30px;max-width:640px}
.progress-bar{height:10px;background:#e8edf6;border-radius:99px;overflow:hidden}
#rm-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--s1),var(--s4),var(--s5));transition:width .4s;border-radius:99px}
.progress-row{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:8px}

/* ===== 阶段区块 ===== */
.stage{max-width:1140px;margin:0 auto;padding:58px 22px;border-top:1px solid #e7ebf3}
.stage-head{display:flex;gap:18px;align-items:flex-start;margin-bottom:18px}
.stage-num{width:52px;height:52px;border-radius:14px;background:var(--sc);color:#fff;font-size:24px;font-weight:800;display:grid;place-items:center;flex:none;box-shadow:0 6px 16px -6px var(--sc);transition:.3s}
.stage.stage-done .stage-num{background:var(--green);content:''}
.stage-head h2{font-size:clamp(23px,3vw,29px);font-weight:800;line-height:1.3}
.stage-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.chip{font-size:12.5px;color:var(--muted);background:#eef1f7;border:1px solid var(--line);border-radius:999px;padding:3px 11px;white-space:nowrap}
.goals{background:color-mix(in srgb,var(--sc) 7%,#fff);border:1px solid color-mix(in srgb,var(--sc) 20%,#fff);border-left:4px solid var(--sc);border-radius:10px;padding:14px 18px;margin-bottom:22px;font-size:14.5px}
.practice{background:#fffbf2;border:1px solid #f2e2c0;border-radius:10px;padding:15px 18px;margin-top:22px;font-size:14.5px}
.practice b{display:block;margin-bottom:6px}
.practice ul{margin:0 0 0 22px;display:flex;flex-direction:column;gap:6px}
.practice li::marker{color:#d99a26}
.stage-btn{margin-top:18px;display:inline-flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:9px 18px;font-size:13.5px;font-weight:600;color:var(--muted);cursor:pointer;transition:.18s;font-family:inherit}
.stage-btn:hover{border-color:var(--sc);color:var(--ink)}
.stage-btn.is-done{background:#e7f6ee;border-color:#bfe5cf;color:#12734a}

/* ===== 资源卡片 ===== */
.res-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:16px;margin-top:4px}
.res-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;transition:transform .18s,box-shadow .18s,border-color .18s;break-inside:avoid}
.res-card:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(27,36,56,.05),0 18px 36px -16px rgba(27,36,56,.22);border-color:color-mix(in srgb,var(--sc,#7b8bb0) 40%,var(--line))}
.card-top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.res-card h3{font-size:16.5px;line-height:1.45;font-weight:700}
.res-card h3 a{color:var(--ink);text-decoration:none;border-bottom:2px solid color-mix(in srgb,var(--sc,#8090b8) 55%,transparent);transition:.15s}
.res-card h3 a:hover{color:var(--primary-ink)}
.prov{font-size:12.5px;color:var(--muted);margin-top:-4px}
.meta{display:flex;flex-wrap:wrap;gap:6px}
.badge{display:inline-flex;align-items:center;font-size:12px;line-height:1;padding:5px 9px;border-radius:999px;border:1px solid var(--line);background:#f6f8fc;color:var(--muted);font-weight:500;white-space:nowrap}
.badge.free{background:#e7f6ee;border-color:#bfe5cf;color:#12734a;font-weight:700}
.badge.zh{background:#eaf1ff;border-color:#c9dbff;color:#1c4fc4}
.badge.en{background:#fff4e3;border-color:#ffe0b3;color:#a05a00}
.badge.cert{background:#eef8ff;border-color:#c2e6ff;color:#0b6a9e;font-weight:600}
.desc{font-size:14px;color:#3d4761;line-height:1.72}
.why{font-size:13px;color:var(--muted);background:#f6f8fc;border-radius:9px;padding:9px 12px;line-height:1.66;margin-top:auto}
.why b{color:var(--green)}

/* ===== 学习方法 / 误区 ===== */
.m-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;margin:22px 0}
.m-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);font-size:14px;color:var(--muted)}
.m-card b{display:block;margin-bottom:7px;font-size:15px;color:var(--ink)}
details.qa{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:11px;overflow:hidden;box-shadow:var(--shadow)}
details.qa summary{cursor:pointer;padding:13px 16px;font-weight:600;font-size:14.5px;list-style:none;display:flex;gap:10px;align-items:baseline}
details.qa summary::-webkit-details-marker{display:none}
details.qa summary::before{content:'❌';flex:none;transform:translateY(1px)}
details.qa .qa-body{padding:0 16px 14px 40px;color:var(--muted);font-size:14px;border-top:1px dashed var(--line);padding-top:11px}
details.qa .qa-body b{color:var(--green)}

/* ===== 表格 ===== */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 16px}
.filters button{font-size:13px;padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;font-family:inherit;font-weight:600;transition:.15s}
.filters button:hover{border-color:var(--primary);color:var(--primary-ink)}
.filters button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--paper);box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:860px}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top;line-height:1.6}
th{background:#f0f4fb;font-size:13px;white-space:nowrap}
tbody tr:nth-child(even){background:#fafbfd}
tbody tr:hover{background:#f0f5ff}
td a{word-break:break-all}
.td-stage{white-space:nowrap;font-weight:600}
.td-cert{white-space:nowrap}

/* ===== 页脚 / 其他 ===== */
footer{background:#101733;color:#aab6da;padding:44px 24px;font-size:13.5px;line-height:2}
.f-inner{max-width:1140px;margin:auto}
.f-inner b{color:#fff}
#top-btn{position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;background:var(--ink);color:#fff;border:none;font-size:19px;cursor:pointer;opacity:0;pointer-events:none;transition:.25s;box-shadow:var(--shadow);z-index:60}
#top-btn.show{opacity:1;pointer-events:auto}
@media (max-width:640px){
  .stage-head{gap:12px}
  .stage-num{width:42px;height:42px;font-size:20px}
  .hero{padding:64px 18px 72px}
}
@media print{
  .nav,#top-btn,.filters,.stage-btn{display:none!important}
  body{background:#fff}
  .section,.stage{padding:14px 0;max-width:none}
  .res-card{break-inside:avoid}
  details.qa{break-inside:avoid}
  details.qa[open] .qa-body,details.qa .qa-body{display:block}
}

[hidden]{display:none!important} button,input,select,textarea{font:inherit}button,select,input[type=checkbox]{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #e89917;outline-offset:3px}.route-pick{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.route-pick button{text-align:left;padding:20px;border:1px solid var(--line);border-radius:14px;background:white;color:var(--ink)}.route-pick button[aria-pressed=true]{border:2px solid var(--primary);background:#eef4ff}.route-pick b{display:block;font-size:18px;margin-bottom:5px}.route-pick span{font-size:14px;color:var(--muted)}.task-list{list-style:none;display:grid;gap:12px;margin-top:18px}.task-list label{display:flex;gap:12px;background:white;padding:14px;border:1px solid var(--line);border-radius:10px}.task-list input{width:19px;height:19px;flex:none;margin-top:5px;accent-color:var(--primary)}.task-list label:has(input:checked){background:#eaf7ef}.journal{display:grid;gap:8px;margin-top:18px}.journal textarea{width:100%;min-height:90px;padding:12px;border:1px solid var(--line);border-radius:10px;resize:vertical;background:#fff}.stage details{margin-top:18px}.stage summary{cursor:pointer;font-weight:600;padding:10px 0}.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:16px 0}.toolbar select,.toolbar input,.toolbar button{padding:9px 12px;background:white;border:1px solid var(--line);border-radius:8px}.toolbar input{max-width:100%;min-width:150px}.toolbar button{color:var(--primary-ink)}.small{font-size:13px;color:var(--muted)}.stage-progress{font-size:13px;font-weight:600;color:var(--primary-ink);margin-top:15px}.today{margin-top:20px;padding:20px;border-radius:12px;background:#fff7e6;border:1px solid #efcf95}.today a{font-weight:700}.route-seq{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.route-seq a{padding:8px 12px;background:white;border:1px solid var(--line);border-radius:8px;text-decoration:none}.res-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,310px),1fr))}.hero{padding-top:50px;padding-bottom:54px}.hero-brand{margin-bottom:20px}.hero h1{line-height:1.3}.note a{color:inherit}.section,.stage{padding-top:38px;padding-bottom:38px}#save-status{min-height:24px}.nav-inner{max-width:1140px}.hero-stats{margin-top:28px}.guide-list{margin-left:22px}.guide-list li{margin-top:7px} @media(max-width:680px){.route-pick{grid-template-columns:1fr}.hero-stats{gap:18px}.toolbar{align-items:stretch}.toolbar label{width:100%}.toolbar select{width:100%}}@media print{.toolbar,.route-pick{display:none}.stage{break-before:page}.journal textarea{min-height:100px}}