/* 璀泊AI科学社 · OPC 创业就业技能培训 单页网站
   配色：海军蓝为主，品牌橙作强调，蓝 / 绿为辅助；六边形呼应公司 logo */
:root {
  --navy: #0a1a33;
  --navy-2: #15396b;
  --ink: #1b2433;
  --mute: #5f6b7d;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-alt: #f4f6fa;
  --orange: #eb7022;
  --orange-soft: #fdf1e8;
  --blue: #1a7fc6;
  --blue-soft: #eaf3fb;
  --green: #4e9c38;
  --green-soft: #edf6ea;
  --radius: 14px;
  --shadow: 0 10px 30px -12px rgba(10, 26, 51, .18);
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.3; color: var(--navy); text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 820px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 20px; border-radius: 999px; font-weight: 600; font-size: 15px; transition: transform .2s, box-shadow .2s, background .2s, color .2s; white-space: nowrap; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-primary { background: var(--orange); color: #fff; box-shadow: 0 8px 20px -8px rgba(235, 112, 34, .7); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -8px rgba(235, 112, 34, .8); }
.btn-ghost { border: 1.5px solid rgba(255, 255, 255, .45); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .1); border-color: #fff; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; border-radius: 6px; }

/* 导航 */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, box-shadow .3s; }
.nav-inner { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { width: 36px; height: 36px; background: #fff; border-radius: 9px; padding: 3px; }
.brand span { display: flex; flex-direction: column; line-height: 1.25; }
.brand b { font-size: 16px; color: #fff; transition: color .3s; }
.brand small { font-size: 11px; color: rgba(255, 255, 255, .65); transition: color .3s; }
.nav-links { display: flex; gap: 24px; margin-left: auto; }
.nav-links a { font-size: 14.5px; color: rgba(255, 255, 255, .82); position: relative; padding: 4px 0; transition: color .2s; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--orange); transform: scaleX(0); transition: transform .25s; }
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a.active::after, .nav-links a:hover::after { transform: scaleX(1); }
.nav-toggle { display: none; }
.nav.scrolled { background: rgba(255, 255, 255, .94); backdrop-filter: blur(10px); box-shadow: 0 1px 0 var(--line); }
.nav.scrolled .brand b { color: var(--navy); }
.nav.scrolled .brand small { color: var(--mute); }
.nav.scrolled .nav-links a { color: var(--mute); }
.nav.scrolled .nav-links a:hover, .nav.scrolled .nav-links a.active { color: var(--navy); }

/* 首屏 */
.hero { position: relative; overflow: hidden; color: #fff; background: radial-gradient(ellipse at 78% 40%, #1d5d9a 0%, rgba(29, 93, 154, 0) 55%), radial-gradient(ellipse at 95% 100%, rgba(235, 112, 34, .35) 0%, rgba(235, 112, 34, 0) 45%), linear-gradient(135deg, #081529 0%, #0d2140 55%, #123060 100%); padding: 150px 0 100px; }
#heroCanvas, #ctaCanvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .18em; color: var(--orange); text-transform: uppercase; margin-bottom: 14px; }
.hero h1 { color: #fff; font-size: clamp(36px, 5.4vw, 60px); font-weight: 800; letter-spacing: .01em; }
.hero h1 .hl { background: linear-gradient(90deg, #ffb57d, var(--orange)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin-top: 22px; font-size: 18px; color: #cfdaea; max-width: 34em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-facts { display: flex; gap: 0; margin-top: 46px; }
.hero-facts li { padding: 0 32px; border-left: 1px solid rgba(255, 255, 255, .2); }
.hero-facts li:first-child { padding-left: 0; border-left: 0; }
.hero-facts b { display: block; font-size: 32px; font-weight: 800; color: #fff; font-variant-numeric: tabular-nums; }
.hero-facts span { font-size: 13px; color: #9fb0c8; }

/* 首屏轨道图 */
.hero-visual { display: flex; justify-content: center; }
.orbit { position: relative; width: min(400px, 80vw); aspect-ratio: 1; }
.orbit::before, .orbit::after { content: ""; position: absolute; border-radius: 50%; border: 1px dashed rgba(255, 255, 255, .22); }
.orbit::before { inset: 0; animation: spin 40s linear infinite; }
.orbit::after { inset: 18%; border-style: solid; border-color: rgba(255, 255, 255, .1); }
.core { position: absolute; inset: 34%; border-radius: 50%; background: radial-gradient(circle, rgba(235, 112, 34, .35), rgba(235, 112, 34, 0) 70%); display: grid; place-items: center; }
.core img { width: 64px; height: 64px; background: #fff; border-radius: 16px; padding: 8px; box-shadow: 0 0 0 10px rgba(255, 255, 255, .06), 0 0 50px rgba(235, 112, 34, .55); animation: pulse 3.2s ease-in-out infinite; }
.core span { position: absolute; bottom: -6px; font-size: 13px; color: #fff; font-weight: 700; letter-spacing: .2em; }
.sat { position: absolute; width: 112px; height: 97px; display: grid; place-items: center; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); background: rgba(255, 255, 255, .08); backdrop-filter: blur(4px); animation: float 6s ease-in-out infinite; }
.sat i { font-style: normal; font-weight: 700; font-size: 15px; }
.s1 { top: -2%; left: 50%; translate: -50% 0; background: rgba(26, 127, 198, .55); }
.s2 { bottom: 6%; right: -4%; background: rgba(235, 112, 34, .75); animation-delay: -2s; }
.s3 { bottom: 6%; left: -4%; background: rgba(78, 156, 56, .65); animation-delay: -4s; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 50% { transform: translateY(-10px); } }
@keyframes pulse { 50% { box-shadow: 0 0 0 16px rgba(255, 255, 255, .04), 0 0 70px rgba(235, 112, 34, .75); } }

/* 三能力条 */
.strip { position: relative; z-index: 2; margin-top: -44px; }
.strip-inner { display: grid; grid-template-columns: repeat(3, 1fr); background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.strip-item { display: flex; gap: 16px; align-items: center; padding: 26px 28px; }
.strip-item + .strip-item { border-left: 1px solid var(--line); }
.strip-item b { display: block; font-size: 17px; color: var(--navy); }
.strip-item small { color: var(--mute); font-size: 13.5px; }

/* 六边形图标 */
.hexi { flex-shrink: 0; display: inline-grid; place-items: center; width: 52px; height: 46px; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); background: var(--blue); color: #fff; font-weight: 800; font-size: 15px; }
.hexi.o { background: var(--orange); } .hexi.g { background: var(--green); } .hexi.n { background: var(--navy); }

/* 通用区块 */
.section { padding: 110px 0; }
.section.alt { background: var(--bg-alt); }
.sec-head { max-width: 880px; margin-bottom: 48px; }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; }
.sec-sub { margin-top: 14px; color: var(--mute); font-size: 17px; }
.src { margin-top: 36px; font-size: 12.5px; color: #98a2b3; }
.src.light { color: #8fa1bb; }
.sub-title { font-size: 22px; margin: 64px 0 24px; }
.card { background: #fff; border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); transition: transform .3s, box-shadow .3s; }
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px -14px rgba(10, 26, 51, .28); }
.tag { display: inline-block; font-size: 12.5px; font-weight: 700; padding: 3px 12px; border-radius: 999px; background: var(--blue-soft); color: var(--blue); }
.tag.o { background: var(--orange-soft); color: var(--orange); } .tag.g { background: var(--green-soft); color: var(--green); } .tag.b { background: var(--blue-soft); color: var(--blue); }

/* 数据 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; transition: transform .3s, box-shadow .3s, border-color .3s; }
.stat:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.stat b { display: block; font-size: 46px; font-weight: 800; color: var(--blue); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat:first-child b { color: var(--orange); }
.stat:last-child b { color: var(--green); }
.stat em { font-style: normal; font-size: 20px; margin-left: 2px; }
.stat p { margin-top: 12px; color: var(--mute); font-size: 14.5px; }
.quote { margin: 40px 0 0; padding: 34px 40px; border-radius: var(--radius); background: linear-gradient(135deg, var(--navy), var(--navy-2)); color: #fff; position: relative; overflow: hidden; }
.quote::before { content: "“"; position: absolute; top: -30px; right: 30px; font-size: 200px; font-weight: 800; color: rgba(255, 255, 255, .07); line-height: 1; }
.quote p { font-size: 20px; font-weight: 600; max-width: 46em; }
.quote cite { display: block; margin-top: 14px; font-style: normal; color: #9fb0c8; font-size: 14px; }

/* 政策时间线 */
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; padding-top: 34px; }
.timeline::before { content: ""; position: absolute; top: 10px; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--line), #c7d3e3); }
.timeline li { position: relative; background: #fff; border-radius: var(--radius); padding: 22px 20px; box-shadow: var(--shadow); }
.timeline li::before { content: ""; position: absolute; top: -32px; left: 20px; width: 18px; height: 16px; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); background: var(--navy); }
.timeline li.hot::before { background: var(--orange); }
.timeline time { font-size: 20px; font-weight: 800; color: var(--blue); }
.timeline .hot time { color: var(--orange); }
.timeline b { display: block; margin-top: 6px; font-size: 15.5px; color: var(--navy); }
.timeline p { margin-top: 6px; font-size: 13.5px; color: var(--mute); }
.policy-grid { display: grid; grid-template-columns: 300px 1fr; gap: 28px; margin-top: 56px; }
.policy-big { border-radius: var(--radius); padding: 34px 30px; color: #fff; background: radial-gradient(ellipse at 90% 0%, rgba(31, 111, 184, .55), transparent 60%), linear-gradient(160deg, var(--navy), var(--navy-2)); display: flex; flex-direction: column; justify-content: center; gap: 28px; }
.policy-big b { font-size: 54px; font-weight: 800; line-height: 1; font-variant-numeric: tabular-nums; }
.policy-big em { font-style: normal; font-size: 22px; color: var(--orange); margin-left: 4px; }
.policy-big p { margin-top: 8px; color: #c9d5e6; font-size: 14.5px; }
.policy-big > div + div { border-top: 1px solid rgba(255, 255, 255, .18); padding-top: 28px; }
.cq h3 { font-size: 20px; margin-bottom: 18px; }
.cq-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cq-cards h4 { margin-top: 14px; font-size: 16px; }
.cq-cards small { display: block; margin-top: 6px; color: var(--mute); font-size: 12.5px; }
.cq-cards ul { margin-top: 14px; display: grid; gap: 8px; }
.cq-cards li { font-size: 14px; padding-left: 16px; position: relative; color: var(--ink); }
.cq-cards li::before { content: ""; position: absolute; left: 0; top: .7em; width: 6px; height: 6px; border-radius: 50%; background: var(--orange); }

/* OPC */
.opc-def { display: flex; gap: 24px; align-items: center; padding: 26px 32px; border-radius: var(--radius); background: var(--blue-soft); }
.opc-def span { flex-shrink: 0; font-weight: 800; color: var(--blue); font-size: 15px; }
.opc-def p { font-size: 17px; color: var(--navy); }
.formula { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 40px; flex-wrap: wrap; }
.f-item { flex: 1 1 150px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; padding: 24px 12px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); transition: transform .3s, box-shadow .3s; }
.f-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.f-item .hexi { width: 64px; height: 56px; margin-bottom: 6px; }
.f-item b { font-size: 17px; color: var(--navy); }
.f-item small { color: var(--mute); font-size: 13px; }
.f-item.result { background: linear-gradient(160deg, var(--navy), var(--navy-2)); border-color: transparent; }
.f-item.result b { color: #fff; } .f-item.result small { color: #9fb0c8; }
.f-item.result .hexi { background: var(--orange); }
.f-op { font-size: 28px; font-weight: 300; color: #b3bfd0; }
.cases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.case { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: transform .3s, box-shadow .3s, border-color .3s; }
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.case b { display: block; font-size: 28px; font-weight: 800; color: var(--orange); margin-bottom: 10px; }
.case:nth-child(n+3) b { color: var(--blue); }
.case p { margin-top: 14px; font-size: 14px; color: var(--mute); }
.rational { display: grid; grid-template-columns: 300px 1fr; margin-top: 48px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.r-num { padding: 32px; background: linear-gradient(160deg, var(--navy), var(--navy-2)); color: #fff; display: flex; flex-direction: column; justify-content: center; }
.r-num b { font-size: 50px; font-weight: 800; line-height: 1; }
.r-num span { margin-top: 10px; color: #c9d5e6; font-size: 14px; }
.r-text { padding: 32px 36px; background: var(--orange-soft); }
.r-text h4 { font-size: 20px; }
.r-text p { margin-top: 10px; color: var(--ink); font-size: 15.5px; }

/* 课程标签页 */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.tab { border: 1px solid var(--line); background: #fff; color: var(--ink); padding: 10px 18px; border-radius: 999px; font: inherit; font-size: 14.5px; font-weight: 600; cursor: pointer; transition: all .2s; }
.tab:hover { border-color: var(--blue); color: var(--blue); }
.tab[aria-selected="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }
.course-panel[hidden] { display: none; }
.course-panel { display: grid; grid-template-columns: 1fr 1.25fr; gap: 0; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); min-height: 300px; }
.cp-left { padding: 40px; color: #fff; background: radial-gradient(ellipse at 100% 0%, rgba(31, 111, 184, .55), transparent 60%), linear-gradient(160deg, var(--navy), var(--navy-2)); display: flex; flex-direction: column; }
.cp-left .when { font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--orange); }
.cp-left h3 { color: #fff; font-size: 28px; margin-top: 10px; }
.cp-left p { margin-top: 14px; color: #c9d5e6; font-size: 15px; }
.cp-left .out { margin-top: auto; padding-top: 26px; }
.cp-left .out small { display: block; font-size: 12.5px; color: #9fb0c8; }
.cp-left .out b { font-size: 18px; color: #fff; }
.cp-right { padding: 40px; }
.cp-right h4 { font-size: 15px; color: var(--mute); font-weight: 700; margin-bottom: 16px; }
.cp-right ul { display: grid; gap: 14px; }
.cp-right li { display: flex; gap: 14px; align-items: flex-start; font-size: 15.5px; }
.cp-right li::before { content: ""; flex-shrink: 0; margin-top: 6px; width: 14px; height: 12px; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); background: var(--orange); }
.fade-in { animation: fadeIn .45s ease both; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* 24 天甘特图 */
.gantt { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 28px 30px; overflow-x: auto; }
.g-axis, .g-row { display: grid; grid-template-columns: 120px 1fr; min-width: 760px; }
.g-axis { position: relative; height: 26px; }
.g-axis span { position: absolute; left: calc(120px + (100% - 120px) * (var(--d) - 1) / 24); font-size: 12px; color: var(--mute); }
.g-axis span.hot { color: var(--orange); font-weight: 700; }
.g-row { align-items: center; margin-top: 12px; }
.g-row label { font-weight: 700; color: var(--navy); font-size: 14px; line-height: 1.3; }
.g-row label small { display: block; font-weight: 400; color: var(--mute); font-size: 12px; }
.g-track { position: relative; height: 48px; background: repeating-linear-gradient(90deg, transparent 0, transparent calc(100% / 24 - 1px), #eef1f6 calc(100% / 24 - 1px), #eef1f6 calc(100% / 24)); border-radius: 8px; }
.bar { position: absolute; top: 4px; bottom: 4px; left: calc((var(--s) - 1) / 24 * 100% + 2px); width: calc((var(--e) - var(--s) + 1) / 24 * 100% - 4px); display: grid; place-items: center; font-style: normal; font-size: 13px; font-weight: 700; color: #fff; background: var(--navy); border-radius: 7px; white-space: nowrap; overflow: hidden; transform-origin: left; transition: transform .9s cubic-bezier(.2, .8, .2, 1); }
.bar:nth-child(even) { background: var(--navy-2); }
.bar.soft { background: var(--blue-soft); color: var(--navy); font-weight: 600; }
.bar.gray { background: var(--bg-alt); color: var(--mute); font-weight: 600; }
.bar.end { background: var(--orange); color: #fff; }
.js .gantt:not(.in) .bar { transform: scaleX(0); }
.gantt .g-row:nth-child(3) .bar { transition-delay: .15s; } .gantt .g-row:nth-child(4) .bar { transition-delay: .3s; } .gantt .g-row:nth-child(5) .bar { transition-delay: .45s; }
.day { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 30px; }
.day li { padding: 18px 20px; border-radius: 12px; background: var(--bg-alt); }
.day time { font-size: 22px; font-weight: 800; color: var(--blue); font-variant-numeric: tabular-nums; }
.day b { display: block; font-size: 15px; color: var(--navy); margin-top: 4px; }
.day small { color: var(--mute); font-size: 12.5px; }

/* 教学方式 */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat { background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); transition: transform .3s; }
.feat:hover { transform: translateY(-6px); }
.feat .ico { display: grid; place-items: center; width: 52px; height: 46px; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); background: var(--navy); color: #fff; margin-bottom: 16px; }
.feat:nth-child(3n+2) .ico { background: var(--orange); }
.feat .ico svg { width: 22px; height: 22px; }
.feat b { font-size: 17px; color: var(--navy); }
.feat p { margin-top: 8px; font-size: 14.5px; color: var(--mute); }

/* 学员收获（深色） */
.section.dark { color: #fff; background: radial-gradient(ellipse at 85% 10%, rgba(31, 111, 184, .45), transparent 55%), linear-gradient(160deg, #081529, #102a52); }
.section.dark h2 { color: #fff; }
.takeaways { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tk { display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 16px; align-items: center; padding: 22px 24px; border-radius: var(--radius); background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); transition: background .3s, transform .3s; }
.tk:hover { background: rgba(255, 255, 255, .11); transform: translateY(-4px); }
.tk .hexi { grid-row: span 2; }
.tk b { font-size: 16.5px; }
.tk small { color: #9fb0c8; font-size: 13.5px; }
.paths { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.path { padding: 28px; border-radius: var(--radius); background: #fff; color: var(--ink); }
.path span { font-size: 13px; font-weight: 800; letter-spacing: .12em; color: var(--green); }
.path:nth-child(2) span { color: var(--orange); } .path:nth-child(3) span { color: var(--blue); }
.path h4 { font-size: 20px; margin-top: 6px; }
.path p { margin-top: 10px; font-size: 14.5px; color: var(--mute); }

/* 结业步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: s; }
.steps li { position: relative; padding: 26px 24px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.steps li::after { content: ""; position: absolute; right: -14px; top: 50%; width: 10px; height: 10px; border-top: 2px solid #c7d3e3; border-right: 2px solid #c7d3e3; transform: translateY(-50%) rotate(45deg); }
.steps li:last-child::after { display: none; }
.steps time { font-size: 13px; font-weight: 700; color: var(--blue); }
.steps b { display: block; font-size: 20px; color: var(--navy); margin-top: 6px; }
.steps p { margin-top: 8px; font-size: 14px; color: var(--mute); }
.steps .hot { background: var(--orange-soft); border-color: transparent; }
.steps .hot time, .steps .hot b { color: var(--orange); }

/* 适合谁 + 报名 */
.join { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: start; }
.who h2 { font-size: clamp(26px, 3.2vw, 36px); margin-bottom: 26px; }
.who-list { display: grid; gap: 14px; }
.who-list li { padding: 18px 22px; background: #fff; border-radius: 12px; box-shadow: var(--shadow); transition: transform .3s; }
.who-list li:hover { transform: translateX(6px); }
.who-list b { display: block; color: var(--navy); font-size: 16.5px; }
.who-list span { color: var(--mute); font-size: 14px; }
.enroll { padding: 36px; border-radius: var(--radius); color: #fff; background: radial-gradient(ellipse at 100% 0%, rgba(31, 111, 184, .55), transparent 60%), linear-gradient(160deg, var(--navy), var(--navy-2)); }
.enroll-logo { width: 56px; height: 56px; background: #fff; border-radius: 14px; padding: 6px; }
.enroll h3 { color: #fff; font-size: 22px; margin-top: 18px; }
.enroll ol { counter-reset: e; margin-top: 18px; display: grid; gap: 12px; }
.enroll ol li { counter-increment: e; display: flex; align-items: center; gap: 12px; font-size: 15.5px; }
.enroll ol li::before { content: counter(e); flex-shrink: 0; display: grid; place-items: center; width: 30px; height: 26px; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); background: rgba(255, 255, 255, .16); font-size: 13px; font-weight: 700; }
.enroll ol li:last-child::before { background: var(--orange); }
.qr { margin-top: 26px; padding: 18px; border-radius: 12px; background: rgba(255, 255, 255, .08); display: flex; gap: 16px; align-items: center; }
.qr img { width: 96px; height: 96px; border-radius: 8px; background: #fff; padding: 4px; }
.qr p { font-size: 14.5px; color: #dce5f2; }
.enroll > small { display: block; margin-top: 14px; color: #9fb0c8; font-size: 13px; }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 0 24px; transition: box-shadow .3s; }
.faq details[open] { box-shadow: var(--shadow); border-color: transparent; }
.faq summary { cursor: pointer; list-style: none; padding: 20px 0; font-weight: 700; color: var(--navy); font-size: 16.5px; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; line-height: 1; color: var(--orange); transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 20px; color: var(--mute); font-size: 15px; }

/* 结尾 CTA */
.cta { position: relative; overflow: hidden; padding: 110px 0; text-align: center; color: #fff; background: radial-gradient(ellipse at 50% 120%, rgba(235, 112, 34, .45), transparent 60%), linear-gradient(160deg, #081529, #123060); }
.cta-inner { position: relative; }
.cta h2 { color: #fff; font-size: clamp(30px, 4.4vw, 48px); font-weight: 800; }
.cta p { margin: 16px auto 32px; color: #c9d5e6; max-width: 40em; }

/* 页脚 */
.footer { background: #06101f; color: #8a97ab; padding: 56px 0 28px; font-size: 13.5px; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.foot-brand p { margin-top: 16px; max-width: 30em; line-height: 1.8; }
.brand.light b { color: #fff; } .brand.light small { color: #8a97ab; }
.foot-col h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.foot-col a { display: flex; align-items: center; gap: 8px; padding: 5px 0; color: #a9b5c7; transition: color .2s, transform .2s; width: fit-content; }
.foot-col a:hover { color: var(--orange); transform: translateX(3px); }
.foot-col svg { width: 15px; height: 15px; flex-shrink: 0; }
.foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .08); color: #5d6a7e; font-size: 12.5px; }
.foot-bottom a { color: #8a97ab; } .foot-bottom a:hover { color: #fff; }

/* 回到顶部 */
.to-top { position: fixed; right: 24px; bottom: 24px; width: 46px; height: 46px; border: 0; border-radius: 50%; background: var(--navy); color: #fff; font-size: 18px; cursor: pointer; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transform: translateY(10px); transition: all .3s; z-index: 40; }
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }
.to-top:hover { background: var(--orange); }

/* ===== 新增：联系方式与动效 ===== */
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.progress { position: fixed; top: 0; left: 0; height: 3px; width: 100%; z-index: 60; background: linear-gradient(90deg, var(--orange), #ffb57d); transform-origin: left; transform: scaleX(0); }
.nav-phone { display: flex; align-items: center; gap: 6px; font-weight: 700; font-size: 15px; color: #fff; white-space: nowrap; transition: color .3s; }
.nav-phone svg { width: 16px; height: 16px; color: var(--orange); }
.nav.scrolled .nav-phone { color: var(--navy); }
.nav-links { margin-left: auto; }
.nav-phone { margin-left: 4px; }

/* 首屏入场 */
.hero h1 .line { display: block; overflow: hidden; padding-bottom: .06em; }
.hero h1 .line > span { display: inline-block; }
.js .hero h1 .line > span { transform: translateY(105%); animation: lineUp .9s cubic-bezier(.2, .8, .2, 1) forwards; }
.js .hero h1 .line:nth-child(2) > span { animation-delay: .15s; }
.js .hero .eyebrow, .js .hero .lead, .js .hero-cta, .js .hero-facts, .js .hero-visual { opacity: 0; animation: fadeUp .8s ease forwards; }
.js .hero .eyebrow { animation-delay: 0s; } .js .hero .lead { animation-delay: .35s; } .js .hero-cta { animation-delay: .5s; } .js .hero-facts { animation-delay: .65s; } .js .hero-visual { animation-delay: .3s; }
@keyframes lineUp { to { transform: none; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.hero h1 .hl { background-size: 200% 100%; animation: hlShift 5s ease-in-out infinite; background-image: linear-gradient(90deg, #ffb57d, var(--orange), #ffd2ad, var(--orange)); }
@keyframes hlShift { 50% { background-position: 100% 0; } }
.orbit { transition: transform .4s ease-out; }

/* 按钮光泽 */
.btn-shine, .hero-cta .btn-primary { position: relative; overflow: hidden; }
.btn-shine::after, .hero-cta .btn-primary::after { content: ""; position: absolute; top: 0; left: -60%; width: 40%; height: 100%; background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .45), transparent); transform: skewX(-20deg); animation: shine 3.6s ease-in-out infinite; }
@keyframes shine { 0%, 60% { left: -60%; } 100% { left: 130%; } }

/* 关键词滚动带 */
.marquee { overflow: hidden; padding: 26px 0 0; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; gap: 14px; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee span { white-space: nowrap; padding: 8px 18px; border-radius: 999px; background: var(--bg-alt); color: var(--navy); font-weight: 600; font-size: 14px; }
.marquee span:nth-child(3n+1) { background: var(--orange-soft); color: var(--orange); }
.marquee span:nth-child(3n+2) { background: var(--blue-soft); color: var(--blue); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 时间线描线 */
.timeline::before { transform-origin: left; transition: transform 1.4s cubic-bezier(.2, .8, .2, 1); }
.js .timeline:not(.drawn)::before { transform: scaleX(0); }

/* 卡片 3D 倾斜（仅鼠标设备，由 JS 设置变量） */
.tilt, .js .reveal.in.tilt { transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--ty, 0)); transition: transform .25s ease-out, box-shadow .3s; }
.tilt:hover { --ty: -6px; }
.js .reveal.in.tilt { transition: transform .25s ease-out, box-shadow .3s, opacity .7s; }

/* 报名卡联系方式 */
.contact { display: grid; grid-template-columns: 1fr auto; gap: 10px 12px; align-items: center; margin-top: 16px; }
.contact-item { display: flex; align-items: center; gap: 12px; min-width: 0; color: #fff; }
.contact-item svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--orange); }
.contact-item span { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.contact-item small { font-size: 12px; color: #9fb0c8; }
.contact-item b { font-size: 15px; overflow-wrap: anywhere; }
.contact-item.big b { font-size: 24px; letter-spacing: .02em; font-variant-numeric: tabular-nums; }
.contact-item:hover b { color: #ffd2ad; }
.copy { border: 1px solid rgba(255, 255, 255, .3); background: transparent; color: #fff; font: inherit; font-size: 12.5px; padding: 6px 12px; border-radius: 999px; cursor: pointer; transition: background .2s, border-color .2s; white-space: nowrap; }
.copy:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }

/* 结尾 CTA 按钮组 */
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.cta-actions .btn { max-width: 100%; }
.cta-actions .btn span { overflow: hidden; text-overflow: ellipsis; }

/* 移动端底部电话条 */
.callbar { display: none; }
@media (max-width: 960px) {
  .nav-phone span { display: none; }
  .nav-phone { width: 36px; height: 36px; justify-content: center; border-radius: 50%; background: rgba(255, 255, 255, .12); margin-left: auto; }
  .nav.scrolled .nav-phone, .nav.menu .nav-phone { background: var(--bg-alt); }
  .nav-phone svg { width: 18px; height: 18px; }
  .nav-cta { margin-left: 0; }
}
@media (max-width: 600px) {
  .callbar { display: grid; grid-template-columns: 1fr 1fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; background: #fff; box-shadow: 0 -8px 24px -10px rgba(10, 26, 51, .25); padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px)); gap: 10px; transform: translateY(110%); transition: transform .35s; }
  .callbar.show { transform: none; }
  .callbar a { display: flex; align-items: center; justify-content: center; gap: 8px; height: 46px; border-radius: 999px; font-weight: 700; font-size: 15px; }
  .callbar svg { width: 18px; height: 18px; }
  .cb-call { background: var(--orange); color: #fff; }
  .cb-join { background: var(--navy); color: #fff; }
  .to-top { bottom: 84px; right: 16px; }
  .nav-cta { display: none; }
  .footer { padding-bottom: 96px; }
  .contact-item.big b { font-size: 21px; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (min-width: 601px) and (max-width: 960px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }

@media (max-width: 1240px) and (min-width: 961px) { .nav-phone span { display: none; } }
@media (max-width: 960px) { .timeline::before { transform-origin: top; } .js .timeline:not(.drawn)::before { transform: scaleY(0); } }

/* 课程速览 */
.section.about { padding: 80px 0 30px; }
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about-text h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; }
.about-lead { margin-top: 18px; font-size: 16.5px; color: var(--ink); line-height: 1.9; }
.about-lead strong { color: var(--navy); }
.facts { margin: 0; display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.facts div { display: grid; grid-template-columns: 76px 1fr; gap: 12px; padding: 12px 20px; border-top: 1px solid var(--line); font-size: 14.5px; }
.facts div:first-child { border-top: 0; }
.facts dt { color: var(--mute); font-weight: 700; }
.facts dd { margin: 0; color: var(--ink); }
.facts a { color: var(--blue); }
.facts a:hover { color: var(--orange); }
@media (max-width: 960px) { .about-inner { grid-template-columns: 1fr; gap: 28px; } }

.section.alt .day li { background: #fff; }

/* AI 工作逻辑：一人多岗 */
.wl-compare { display: grid; grid-template-columns: 1fr auto 1.2fr; gap: 20px; align-items: stretch; }
.wl-old, .wl-new { border-radius: var(--radius); padding: 28px 30px; }
.wl-old { background: #fff; border: 1px dashed #c7d3e3; }
.wl-old span, .wl-new span { font-size: 13px; font-weight: 800; letter-spacing: .12em; }
.wl-old span { color: var(--mute); } .wl-new span { color: var(--orange); }
.wl-old h3 { color: var(--mute); font-size: 22px; margin-top: 6px; }
.wl-old p { margin-top: 10px; color: var(--mute); font-size: 15px; }
.wl-new { color: #fff; background: radial-gradient(ellipse at 100% 0%, rgba(31, 111, 184, .55), transparent 60%), linear-gradient(160deg, var(--navy), var(--navy-2)); box-shadow: var(--shadow); }
.wl-new h3 { color: #fff; font-size: 24px; margin-top: 6px; }
.wl-new p { margin-top: 10px; color: #dce5f2; font-size: 15.5px; }
.wl-arrow { align-self: center; font-size: 30px; color: var(--orange); animation: nudge 1.6s ease-in-out infinite; }
@keyframes nudge { 50% { transform: translateX(6px); } }
.wl-facts { display: grid; grid-template-columns: repeat(3, 1fr) 1.6fr; gap: 16px; margin-top: 22px; }
.wl-facts > div { background: #fff; border-radius: var(--radius); padding: 20px 22px; box-shadow: var(--shadow); }
.wl-facts b { font-size: 34px; font-weight: 800; color: var(--blue); font-variant-numeric: tabular-nums; }
.wl-facts > div:first-child b { color: var(--orange); }
.wl-facts p { font-size: 13.5px; color: var(--mute); margin-top: 4px; }
.wl-facts blockquote { margin: 0; padding: 20px 24px; border-radius: var(--radius); background: var(--blue-soft); color: var(--navy); font-size: 15px; font-weight: 600; line-height: 1.75; }
.wl-facts cite { display: block; margin-top: 8px; font-style: normal; font-weight: 400; font-size: 12.5px; color: var(--mute); }

.wf { position: relative; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 30px 28px 24px; }
.wf-person { display: flex; align-items: center; gap: 14px; width: fit-content; max-width: 100%; margin: 0 auto; padding: 14px 26px; border-radius: 14px; color: #fff; background: linear-gradient(160deg, var(--navy), var(--navy-2)); }
.wf-person img { width: 36px; height: 36px; background: #fff; border-radius: 9px; padding: 3px; }
.wf-person b { display: block; font-size: 16px; }
.wf-person small { color: #c9d5e6; font-size: 13px; }
.wf-bus { position: relative; height: 36px; margin: 0 calc(100% / 12); border-top: 0; }
.wf-bus::before { content: ""; position: absolute; left: 50%; top: 0; height: 18px; border-left: 2px solid #c7d3e3; }
.wf-bus::after { content: ""; position: absolute; left: 0; right: 0; top: 18px; border-top: 2px solid #c7d3e3; }
.wf-nodes { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; counter-reset: n; }
.wf-node { position: relative; text-align: center; padding: 16px 8px; border-radius: 12px; border: 1.5px solid var(--line); background: #fff; transition: border-color .35s, background .35s, transform .35s, box-shadow .35s; }
.wf-node::before { content: ""; position: absolute; left: 50%; top: -20px; height: 18px; border-left: 2px solid #c7d3e3; }
.wf-node::after { content: "→"; position: absolute; right: -13px; top: 50%; transform: translateY(-50%); color: #b3bfd0; font-size: 14px; }
.wf-node:last-child::after { display: none; }
.wf-node b { display: block; font-size: 15px; color: var(--navy); }
.wf-node small { color: var(--mute); font-size: 12.5px; }
.wf-node.active { border-color: var(--orange); background: var(--orange-soft); transform: translateY(-4px); box-shadow: 0 10px 22px -10px rgba(235, 112, 34, .6); }
.wf-node.active b { color: var(--orange); }
.wf-node.done { border-color: #b9d7ee; }
.wf-deliver { width: fit-content; margin: 22px auto 0; padding: 10px 24px; border-radius: 999px; border: 1.5px dashed var(--orange); color: var(--orange); font-size: 15px; transition: background .35s, color .35s; }
.wf-deliver.active { background: var(--orange); color: #fff; border-style: solid; }
.wf-note { margin-top: 16px; text-align: center; font-size: 13px; color: var(--mute); }
.caps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 20px; }
.cap { background: #fff; border-radius: 12px; padding: 18px 20px; border: 1px solid var(--line); }
.cap b { font-size: 16px; color: var(--navy); }
.cap p { margin-top: 4px; font-size: 13.5px; color: var(--mute); }
.cap:nth-child(odd) b { color: var(--blue); } .cap:nth-child(even) b { color: var(--orange); }
.caps-note { margin-top: 12px; font-size: 12.5px; color: #98a2b3; }
.value { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.val { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.val b { font-size: 40px; font-weight: 800; color: var(--blue); line-height: 1.1; font-variant-numeric: tabular-nums; }
.val:first-child b { color: var(--orange); } .val:last-child b { color: var(--green); font-size: 34px; }
.val em { font-style: normal; font-size: 18px; margin-left: 2px; }
.val p { margin-top: 10px; font-size: 14px; color: var(--ink); flex: 1; }
.val small { margin-top: 12px; font-size: 12px; color: var(--mute); }
.newjob { margin-top: 20px; padding: 16px 22px; border-radius: 12px; background: var(--green-soft); color: var(--navy); font-weight: 600; font-size: 15px; }
.src a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.src a:hover { color: var(--orange); }
@media (max-width: 960px) {
  .wl-compare { grid-template-columns: 1fr; }
  .wl-arrow { transform: rotate(90deg); justify-self: center; animation: none; }
  .wl-facts { grid-template-columns: repeat(3, 1fr); }
  .wl-facts blockquote { grid-column: 1 / -1; }
  .wf-nodes { grid-template-columns: repeat(3, 1fr); row-gap: 30px; }
  .wf-node:nth-child(3)::after { display: none; }
  .wf-bus { display: none; }
  .wf-node::before { display: none; }
  .wf-person { margin-bottom: 22px; }
  .caps, .value { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .wl-facts { grid-template-columns: 1fr; }
  .wf { padding: 22px 16px; }
  .wf-person { padding: 12px 16px; }
  .wf-nodes { grid-template-columns: 1fr 1fr; gap: 12px; row-gap: 14px; }
  .wf-node::after { display: none; }
  .caps, .value { grid-template-columns: 1fr; }
}

/* 提示 */
.toast { position: fixed; left: 50%; bottom: 110px; transform: translate(-50%, 20px); background: var(--navy); color: #fff; padding: 10px 20px; border-radius: 999px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; z-index: 70; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 滚动出现动效（仅在 JS 可用时隐藏初始状态） */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .8, .2, 1); }
.js .reveal.in { opacity: 1; transform: none; }

/* 响应式 */
@media (max-width: 1080px) {
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 13.5px; }
}
@media (max-width: 960px) {
  .nav-links { position: fixed; inset: 72px 0 auto; flex-direction: column; gap: 0; background: #fff; padding: 8px 24px 20px; box-shadow: 0 20px 30px -20px rgba(10, 26, 51, .3); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: transform .3s, opacity .3s, visibility .3s; }
  .nav-links.open { transform: none; opacity: 1; visibility: visible; }
  .nav-links a, .nav.scrolled .nav-links a { color: var(--navy); padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-cta { margin-left: auto; padding: 8px 16px; font-size: 14px; }
  .nav-toggle { display: grid; gap: 6px; width: 40px; height: 40px; place-content: center; border: 0; background: transparent; cursor: pointer; }
  .nav-toggle span { width: 22px; height: 2px; background: #fff; transition: transform .3s; }
  .nav.scrolled .nav-toggle span, .nav.menu .nav-toggle span { background: var(--navy); }
  .nav.menu { background: #fff; }
  .nav.menu .brand b { color: var(--navy); } .nav.menu .brand small { color: var(--mute); }
  .hero-inner, .policy-grid, .rational, .course-panel, .join { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .orbit { width: min(300px, 70vw); }
  .stats, .cases { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr; padding-top: 0; padding-left: 30px; }
  .timeline::before { top: 0; bottom: 0; left: 8px; right: auto; width: 2px; height: auto; }
  .timeline li::before { top: 26px; left: -30px; }
  .cq-cards, .features, .takeaways, .paths { grid-template-columns: 1fr 1fr; }
  .steps, .day { grid-template-columns: 1fr 1fr; }
  .steps li::after { display: none; }
  .strip-inner { grid-template-columns: 1fr; }
  .strip-item + .strip-item { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .section { padding: 76px 0; }
  .hero { padding: 120px 0 90px; }
  .brand small { display: none; }
  .hero-facts li { padding: 0 18px; }
  .hero-facts b { font-size: 26px; }
  .stats, .cases, .cq-cards, .features, .takeaways, .paths, .steps, .day { grid-template-columns: 1fr; }
  .formula { flex-direction: column; }
  .f-item { width: 100%; }
  .opc-def { flex-direction: column; align-items: flex-start; gap: 8px; }
  .cp-left, .cp-right { padding: 28px; }
  .quote { padding: 28px; } .quote p { font-size: 17px; }
  .sat { width: 86px; height: 75px; } .sat i { font-size: 12.5px; }
  .s2 { right: 0; } .s3 { left: 0; }
  .core img { width: 52px; height: 52px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
  .js .gantt:not(.in) .bar { transform: none; }
  .js .hero h1 .line > span, .js .hero .eyebrow, .js .hero .lead, .js .hero-cta, .js .hero-facts, .js .hero-visual { opacity: 1; transform: none; }
  .js .timeline:not(.drawn)::before { transform: none; }
  .marquee-track { animation: none; }
  .wl-arrow { animation: none; }
  html { scroll-behavior: auto; }
}