/* 星童声官网 v2 · 手机优先，900px 以上切电脑排版
   颜色约定：深墨蓝 + 米白纸色；蓝色 = 机构和声乐老师，荧光绿 = 学员家长 */
@font-face{font-family:"SV Display";src:url(/assets/fonts/display.woff2?v=09387d9f) format("woff2");font-weight:900;font-display:swap}
@font-face{font-family:"SV Serif";src:url(/assets/fonts/serif.woff2?v=2e7b7869) format("woff2");font-weight:600;font-display:swap}
:root{
  --ink:#0B1022;--ink2:#141B33;--paper:#F4F1EA;--paper2:#EAE5D8;--card:#FFFDF8;--text:#14161C;--mute:#6B7183;--mute-d:#9098AE;
  --blue:#1743A6;--lime:#C5F11E;--red:#D63A2F;--line:rgba(20,22,28,.12);--line-d:rgba(233,236,244,.14);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --display:"SV Display",var(--sans);--serif:"SV Serif","Songti SC","Noto Serif SC",serif;
  --gut:20px;--top:60px;--ease:cubic-bezier(.2,.7,.2,1);
  --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .06 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:var(--top)}
body{margin:0;background:var(--paper);color:var(--text);font:16px/1.75 var(--sans);-webkit-font-smoothing:antialiased}
body.menu-open{overflow:hidden}
main{overflow-x:hidden;overflow-x:clip}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-family:var(--display);font-weight:900;letter-spacing:-.01em}
p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.wrap{padding:0 var(--gut);max-width:1180px;margin:0 auto}
.narrow{max-width:820px}
.dark{background:var(--ink) var(--grain);color:#E9ECF4}
.skip{position:absolute;left:-999px;top:8px;z-index:99;background:var(--lime);color:var(--ink);padding:8px 14px;border-radius:4px}
.skip:focus{left:8px}

/* ---------- 顶栏 ---------- */
.top{position:fixed;inset:0 0 auto;z-index:40;display:flex;align-items:center;height:var(--top);padding:0 var(--gut);color:#fff;transition:background .35s,box-shadow .35s}
.top.solid,.menu-open .top{background:rgba(11,16,34,.9);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line-d)}
.brand img{height:34px;width:auto}
.nav{display:none}
.top-cta{display:none;margin-left:auto;gap:10px}
.pill{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;font-size:13.5px;font-weight:600;white-space:nowrap;transition:background .2s,border-color .2s,color .2s}
.pill-line{border:1px solid rgba(255,255,255,.35)}
.pill-line:hover{background:var(--blue);border-color:var(--blue)}
.pill-lime{background:var(--lime);color:var(--ink)}
.pill-lime:hover{background:#fff}
.burger{margin-left:auto;margin-right:-10px;width:44px;height:44px;border:0;background:none;padding:0;display:grid;place-content:center;gap:7px;cursor:pointer}
.burger i{display:block;width:24px;height:1.5px;background:#fff;transition:transform .35s var(--ease),width .35s,margin .35s}
.burger i+i{width:16px;margin-left:8px}
.burger[aria-expanded=true] i{transform:translateY(4.25px) rotate(45deg)}
.burger[aria-expanded=true] i+i{width:24px;margin-left:0;transform:translateY(-4.25px) rotate(-45deg)}

/* 手机菜单 */
.menu{position:fixed;inset:0;z-index:35;overflow-y:auto;background:var(--ink) var(--grain);color:#fff;padding:calc(var(--top) + 12px) var(--gut) calc(32px + env(safe-area-inset-bottom))}
.menu[hidden]{display:none}
.menu-nav{display:grid;border-top:1px solid var(--line-d)}
.menu-nav a{display:flex;align-items:baseline;gap:14px;padding:12px 0;border-bottom:1px solid var(--line-d);font-family:var(--display);font-size:22px;line-height:1.3}
.menu-nav small{font-family:var(--serif);font-size:12px;letter-spacing:.1em;color:var(--lime)}
.menu-nav a[aria-current]{color:var(--lime)}
.js .menu:not([hidden]) .menu-nav a{animation:up .5s var(--ease) both}
.menu-nav a:nth-child(2){animation-delay:.03s!important}.menu-nav a:nth-child(3){animation-delay:.06s!important}.menu-nav a:nth-child(4){animation-delay:.09s!important}.menu-nav a:nth-child(5){animation-delay:.12s!important}.menu-nav a:nth-child(6){animation-delay:.15s!important}.menu-nav a:nth-child(7){animation-delay:.18s!important}
.menu-q{margin:28px 0 12px;font-size:12px;letter-spacing:.3em;color:var(--mute-d)}
.menu-tel{display:block;margin-top:22px;font-size:14px;color:var(--mute-d)}

/* ---------- 两类访客入口 ---------- */
.doors{display:grid;gap:12px}
.door{position:relative;display:grid;gap:2px;padding:15px 60px 15px 18px;border-radius:8px;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s}
.door-b{background:var(--blue);color:#fff}
.door-c{background:var(--lime);color:var(--ink)}
.door::before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.22) 50%,transparent 70%);transform:translateX(-100%);transition:transform .8s var(--ease)}
.door:hover::before{transform:translateX(100%)}
.door-tag{justify-self:start;margin-bottom:5px;padding:2px 8px;border-radius:3px;font-size:11.5px;font-weight:600;letter-spacing:.12em}
.door-b .door-tag{background:rgba(255,255,255,.16)}
.door-c .door-tag{background:rgba(11,16,34,.1)}
.door b{font-family:var(--display);font-weight:900;font-size:19px;line-height:1.3}
.door-sub{font-size:12.5px;opacity:.78}
.door i{position:absolute;right:16px;top:50%;width:34px;height:34px;margin-top:-17px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-size:16px;transition:transform .35s var(--ease)}
.door-b i{background:rgba(255,255,255,.16)}
.door-c i{background:var(--ink);color:var(--lime)}
.door:hover{transform:translateY(-3px);box-shadow:0 18px 40px -18px rgba(0,0,0,.55)}
.door:hover i{transform:translateX(4px)}

/* ---------- 首屏 ---------- */
.hero{position:relative;isolation:isolate;min-height:100svh;display:flex;align-items:flex-end;color:#fff;background:var(--ink);overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-1;overflow:hidden}
.hero-bg picture{display:block;height:100%}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:50% 22%;animation:kb 22s var(--ease) both}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,16,34,.6) 0,rgba(11,16,34,0) 14%,rgba(11,16,34,0) 26%,rgba(11,16,34,.7) 42%,rgba(11,16,34,.94) 58%,var(--ink) 100%),var(--grain)}
.hero-in{position:relative;width:100%;padding-top:calc(var(--top) + 200px);padding-bottom:34px}
.eyebrow{display:flex;align-items:center;font-size:12.5px;letter-spacing:.14em;color:var(--lime);margin-bottom:16px}
.eyebrow span{font-family:var(--display);letter-spacing:.32em;margin-right:.9em;padding-right:.9em;border-right:1px solid rgba(197,241,30,.5)}
.hero h1{font-size:clamp(42px,11.6vw,58px);line-height:1.08;text-shadow:0 2px 30px rgba(11,16,34,.35)}
.hero h1 span{display:block}
.hero h1 span:last-child{color:var(--lime)}
.lede{margin-top:16px;font-size:15.5px;line-height:1.8;color:rgba(233,236,244,.82);max-width:32em}
.doors-hero{margin-top:24px}
.hero-link{display:inline-flex;gap:8px;margin-top:18px;padding-bottom:3px;font-size:14px;color:rgba(255,255,255,.72);border-bottom:1px solid rgba(255,255,255,.3)}
.hero-link:hover{color:#fff}
@keyframes kb{from{transform:scale(1.14)}to{transform:scale(1)}}
@keyframes up{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
/* 标题和导语直接显示（实测：标题做入场动画，慢速手机首屏要晚 0.3 秒），只让两张入口卡片升起 */
.js .hero-in>div.ld,.js .hero-link{animation:up .9s var(--ease) both}
.js .hero-in>div.ld{animation-delay:.15s}
.js .hero-link{animation-delay:.35s}

/* 跑马灯 */
.marquee{position:relative;z-index:2;width:110%;margin:-14px -5% -14px;overflow:hidden;background:var(--lime);color:var(--ink);padding:13px 0;transform:rotate(-2deg)}
.mq-track{display:flex;align-items:center;gap:24px;width:max-content;padding-right:24px;font-family:var(--display);font-size:24px;line-height:1;white-space:nowrap;animation:mq 30s linear infinite}
.mq-track span:nth-of-type(even){color:transparent;-webkit-text-stroke:1.2px var(--ink)}
.mq-track i{font-style:normal;font-size:15px}
@keyframes mq{to{transform:translateX(-50%)}}

/* 数字 */
.nums-sec{padding:56px 0 64px}
.nums{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line-d)}
.nums>div{padding:26px 0 24px;border-bottom:1px solid var(--line-d)}
.nums>div:nth-child(odd){padding-right:16px;border-right:1px solid var(--line-d)}
.nums>div:nth-child(even){padding-left:20px}
.nums .num{font-family:var(--display);font-size:46px;line-height:1;letter-spacing:-.02em;color:#fff;font-variant-numeric:tabular-nums}
.num small{font-family:var(--sans);font-size:14px;font-weight:600;letter-spacing:0;margin-left:4px;color:var(--lime)}
.nums p:not(.num){margin-top:10px;font-size:13px;color:var(--mute-d)}

/* ---------- 段落通用 ---------- */
.sec{padding:76px 0}
.sec-tight{padding:56px 0}
.sec-tight-top{padding-top:44px}
.no{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:13px;letter-spacing:.2em;color:var(--blue);margin-bottom:22px}
.no::after{content:"";flex:1;height:1px;background:currentColor;opacity:.3}
.dark .no{color:var(--lime)}
h2{font-size:clamp(30px,8.4vw,38px);line-height:1.22}
.sec-lede{margin-top:16px;max-width:36em;color:var(--mute);font-size:15.5px}
.dark .sec-lede{color:var(--mute-d)}
.more{display:inline-flex;align-items:center;gap:8px;margin-top:28px;padding-bottom:4px;font-weight:600;border-bottom:1px solid currentColor;transition:gap .25s var(--ease)}
.more:hover{gap:14px}
.note{margin-top:12px;font-size:12px;color:var(--mute)}
.dark .note{color:var(--mute-d)}
.aud-tag{display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;padding:4px 12px 4px 10px;border-radius:999px;background:var(--blue);color:#fff;font-size:12.5px;font-weight:600;letter-spacing:.08em}
.aud-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.75}
.aud-c{background:var(--lime);color:var(--ink)}
[data-mark]{position:relative;overflow:hidden}
[data-mark]::before{content:attr(data-mark);position:absolute;top:24px;right:-.04em;font-family:var(--display);font-weight:900;font-size:clamp(72px,24vw,300px);line-height:1;letter-spacing:-.02em;color:transparent;-webkit-text-stroke:1px rgba(233,236,244,.09);white-space:nowrap;pointer-events:none}
[data-mark]>.wrap{position:relative}
.sec:not(.dark)+.sec:not(.dark){padding-top:0}

/* 按钮 */
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btns .btn{flex:1 1 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;height:50px;padding:0 24px;border:0;border-radius:999px;font-size:15.5px;font-weight:600;letter-spacing:.04em;white-space:nowrap;cursor:pointer;transition:transform .2s,background .2s,color .2s,box-shadow .2s}
.btn:active{transform:scale(.98)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-blue{background:var(--blue);color:#fff}
.btn-ink{background:var(--ink);color:#fff}
.btn-line{border:1px solid currentColor}
.btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff}
.btn:hover{box-shadow:0 12px 28px -14px rgba(0,0,0,.5)}
.btn .arr{margin-left:10px;transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}

/* 01 为什么 */
.quote{position:relative;padding-top:34px;font-family:var(--serif);font-weight:600;font-size:23px;line-height:1.65;color:var(--text)}
.quote::before{content:"“";position:absolute;top:-18px;left:-4px;font-size:84px;line-height:1;color:var(--blue)}
.story{margin-top:22px;color:var(--mute);font-size:15.5px}
.mission{margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.mission span{display:block;margin-bottom:12px;font-size:12px;letter-spacing:.3em;color:var(--mute)}
.mission p{font-family:var(--display);font-size:26px;line-height:1.45}
.mission em{font-style:normal;background:linear-gradient(transparent 62%,var(--lime) 62%)}

/* 横滑 */
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:76%;gap:14px;margin:34px calc(var(--gut) * -1) 0;padding:0 var(--gut) 8px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:0 var(--gut);scrollbar-width:none;-webkit-overflow-scrolling:touch}
.rail::-webkit-scrollbar{display:none}
.rail>*{scroll-snap-align:start}
.card .ph{position:relative;aspect-ratio:4/5;overflow:hidden;border-radius:4px;background:var(--ink2)}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.card:hover .ph img{transform:scale(1.05)}
.card .tag{position:absolute;left:14px;top:14px;padding:4px 10px;border-radius:2px;background:rgba(11,16,34,.55);color:#fff;font-family:var(--serif);font-size:12px;letter-spacing:.2em;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.card h3{margin-top:16px;font-size:21px;line-height:1.3}
.card p{margin-top:8px;font-size:14.5px;line-height:1.7;color:var(--mute)}
.rail-hint{margin-top:14px;font-size:12px;letter-spacing:.2em;color:var(--mute)}
.dark .rail-hint{color:var(--mute-d)}
.rail-show{grid-auto-columns:62%;margin-top:36px}
.show img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:3px}
.rail-apps{grid-auto-columns:84%}
.app img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:6px;box-shadow:0 24px 40px -24px rgba(0,0,0,.7)}
.app figcaption{margin-top:12px;font-size:13.5px;color:var(--mute-d)}
.app figcaption b{display:block;font-size:16px;font-weight:600;color:#fff}

/* VCS 四步：编号描边，滑到时从下往上填满 */
.steps{list-style:none;margin-top:40px;border-top:1px solid var(--line-d)}
.steps li{display:grid;grid-template-columns:64px 1fr;gap:4px 8px;padding:22px 0;border-bottom:1px solid var(--line-d)}
.steps b,.sf-no{font-family:var(--serif);line-height:1;color:transparent;-webkit-text-stroke:1px var(--lime);background:linear-gradient(var(--lime),var(--lime)) 0 100%/100% 0 no-repeat;-webkit-background-clip:text;background-clip:text;transition:background-size 1.2s var(--ease) .25s}
.steps b{grid-row:span 2;font-size:46px}
.steps .in b,.sf.in .sf-no{background-size:100% 100%}
.steps h3{font-size:20px;color:#fff}
.steps p{font-size:14.5px;color:var(--mute-d)}

/* 童声分期表 */
.ages{margin-top:48px}
.ages h3{font-size:20px;color:#fff}
.ages table{width:100%;margin-top:16px;border-collapse:collapse;font-size:14px}
.ages th,.ages td{padding:12px 8px 12px 0;border-bottom:1px solid var(--line-d);text-align:left;font-weight:400;vertical-align:top}
.ages th{font-size:12px;letter-spacing:.1em;color:var(--mute-d)}
.ages td:first-child{color:#fff;font-weight:600;white-space:nowrap}
@media (max-width:639px){
  .ages thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .ages tr{display:grid;grid-template-columns:76px 1fr;padding:14px 0;border-bottom:1px solid var(--line-d)}
  .ages tbody tr:first-child{border-top:1px solid var(--line-d)}
  .ages td{padding:0;border:0}
  .ages td:first-child{grid-row:1/4;font-size:16px}
  .ages td:nth-child(2){grid-column:2;grid-row:1}
  .ages td:nth-child(3){grid-column:2;grid-row:2;color:var(--mute-d);font-size:13px}
  .ages td:nth-child(4){grid-column:2;grid-row:3;margin-top:4px}
}

/* 课程系统数字 */
.sys{display:grid;grid-template-columns:1fr 1fr;margin-top:28px;border-top:1px solid var(--line)}
.sys>div{padding:18px 0 16px;border-bottom:1px solid var(--line)}
.sys>div:nth-child(odd){padding-right:14px;border-right:1px solid var(--line)}
.sys>div:nth-child(even){padding-left:18px}
.sys .num{font-family:var(--display);font-size:38px;line-height:1;color:var(--blue)}
.sys .num small{color:var(--blue)}
.sys p:not(.num){margin-top:6px;font-size:13.5px;color:var(--mute)}
.sys h3{margin-top:12px;font-size:17px}
.ticks-plain{list-style:none;margin-top:28px;border-top:1px solid var(--line)}
.ticks-plain li{position:relative;padding:13px 0 13px 30px;border-bottom:1px solid var(--line);font-size:15px}
.ticks-plain li::before{content:"";position:absolute;left:3px;top:21px;width:11px;height:6px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}

/* 图片：滑到时从中间展开 */
.media{margin-top:32px}
.media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:4px}
.media figcaption{margin-top:10px;font-size:12px;letter-spacing:.06em;color:var(--mute)}
.dark .media figcaption{color:var(--mute-d)}
.js .media.rv,.js .bleed.rv{opacity:1;transform:none;clip-path:inset(7% 5% 7% 5% round 4px);transition:clip-path 1.3s var(--ease)}
.js .media.rv img,.js .bleed.rv img{transform:scale(1.08);transition:transform 1.8s var(--ease)}
.js .media.rv.in,.js .bleed.rv.in{clip-path:inset(0 0 0 0 round 0)}
.js .media.rv.in img,.js .bleed.rv.in img{transform:none}

/* 05 师训 */
.sx-home{background:var(--ink) var(--grain)}
.bleed{position:relative;overflow:hidden}
.bleed img{width:100%;aspect-ratio:3/2;object-fit:cover}
.bleed figcaption{position:absolute;left:var(--gut);bottom:12px;padding:3px 10px;border-radius:3px;background:rgba(11,16,34,.6);color:#fff;font-size:12px;letter-spacing:.06em}
.sec-flush{padding-top:52px}
.cities{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.cities li{padding:6px 14px;border:1px solid var(--line);border-radius:999px;font-size:14px}
.dark .cities li{border-color:var(--line-d)}
.cities .etc{border-style:dashed!important;color:var(--mute)}
.sub-h{margin-top:48px;font-size:19px}
.dark .sub-h{color:#fff}
.ppl-row{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:24px 14px;margin-top:22px}
.ppl-row a{display:block}
.ppl-3{grid-template-columns:repeat(3,1fr)!important;max-width:760px}
.ppl-row img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:3px;transition:filter .4s}
.ppl-row a:hover img{filter:contrast(1.12) brightness(1.06)}
.ppl-row b{display:block;margin-top:10px;font-size:17px;transition:color .2s}
.ppl-row a:hover b{color:var(--blue)}
.dark .ppl-row a:hover b{color:var(--lime)}
.ppl-row span{display:block;font-size:12.5px;line-height:1.5;color:var(--mute)}
.dark .ppl-row span{color:var(--mute-d)}
.dark .ppl-row b{color:#fff}

/* 07 线上课 */
.online{position:relative;overflow:hidden;padding:40px 22px;border-radius:10px;background:var(--ink) var(--grain);color:#E9ECF4}
.online::after{content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(197,241,30,.32),transparent 70%);pointer-events:none}
.online .no{color:var(--lime)}
.online h2{color:#fff}
.ticks{list-style:none;margin-top:26px;border-top:1px solid var(--line-d)}
.ticks li{position:relative;padding:14px 0 14px 30px;border-bottom:1px solid var(--line-d);font-size:14.5px;color:var(--mute-d)}
.ticks li::before{content:"";position:absolute;left:3px;top:22px;width:11px;height:6px;border-left:2px solid var(--lime);border-bottom:2px solid var(--lime);transform:rotate(-45deg)}
.ticks b{display:block;font-size:16px;font-weight:600;color:#fff}
.online-note{margin-top:20px;font-size:13px;color:var(--mute-d)}
.online .btns{margin-top:26px}

/* 荣誉 */
.honors{list-style:none;margin-top:30px}
.honors li{padding:18px 0;border-top:1px solid var(--line-d)}
.honors li:last-child{border-bottom:1px solid var(--line-d)}
.honors small{display:block;font-size:12px;letter-spacing:.1em;color:var(--mute-d)}
.honors strong{display:block;margin-top:4px;font-size:16px;font-weight:600;color:#fff}
.honors-light li{border-color:var(--line)!important}
.honors-light small{color:var(--mute)}
.honors-light strong{color:var(--text)}

/* 文章列表 */
.posts{display:grid;margin-top:30px;border-top:1px solid var(--line)}
.post{display:block;padding:22px 0;border-bottom:1px solid var(--line)}
.post .meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--mute)}
.post em,.side-list em{font-style:normal;padding:2px 8px;border-radius:3px;font-size:11.5px;font-weight:600;letter-spacing:.06em}
.m-b{background:var(--blue);color:#fff}
.m-c{background:var(--lime);color:var(--ink)}
.post h3{margin-top:10px;font-size:20px;line-height:1.4;transition:color .2s}
.post p{margin-top:8px;font-size:14.5px;color:var(--mute)}
.post:hover h3{color:var(--blue)}

/* 常见问题 */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{font-size:17px;line-height:1.45}
.faq summary::after{content:"";flex:none;width:30px;height:30px;border:1px solid var(--line);border-radius:50%;background:linear-gradient(var(--text),var(--text)) center/10px 1.5px no-repeat,linear-gradient(var(--text),var(--text)) center/1.5px 10px no-repeat;transition:transform .35s var(--ease),background-color .2s}
.faq details[open] summary::after{transform:rotate(45deg);background-color:var(--lime)}
.faq details p{padding:0 0 22px;font-size:15px;color:var(--mute)}

/* 页尾入口 */
.end-doors{padding:72px 0 80px}
.end-doors h2{font-size:clamp(42px,12vw,72px)}
.end-doors .doors{margin-top:30px}

/* ---------- 内页页头 ---------- */
.phead{position:relative;isolation:isolate;overflow:hidden;padding:calc(var(--top) + 44px) 0 52px;background:var(--ink) var(--grain);color:#fff}
.phead.has-pic{min-height:min(80svh,660px);display:flex;align-items:flex-end}
.phead-bg{position:absolute;inset:0;z-index:-1;overflow:hidden}
.phead-bg img{width:100%;height:100%;object-fit:cover;animation:kb 22s var(--ease) both}
.phead-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,16,34,.6) 0,rgba(11,16,34,.2) 26%,rgba(11,16,34,.78) 60%,var(--ink) 100%),var(--grain)}
.phead-in{position:relative;width:100%}
.phead .no{margin:24px 0 14px;color:var(--lime)}
.phead .aud-tag{margin-bottom:14px}
.phead h1{font-size:clamp(36px,10vw,50px);line-height:1.15}
.phead .lede{max-width:36em}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:12.5px;color:var(--mute-d)}
.crumbs a:hover{color:#fff}
.crumbs [aria-current]{max-width:16em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(255,255,255,.55)}
.nf{min-height:72vh;display:flex;align-items:center}
.nf a{color:var(--lime);border-bottom:1px solid}

/* 一句话答案 */
.answer{padding:20px 20px 20px 22px;border-left:4px solid var(--lime);border-radius:0 8px 8px 0;background:var(--card);font-size:15.5px;box-shadow:0 1px 0 var(--line)}
.answer b{display:block;margin-bottom:6px;font-size:12px;letter-spacing:.24em;color:var(--blue)}

/* 教学法：四步详解 */
.step-full{margin-top:36px;border-top:1px solid var(--line-d)}
.sf{display:grid;grid-template-columns:58px 1fr;gap:0 10px;padding:30px 0;border-bottom:1px solid var(--line-d)}
.sf-no{font-size:54px}
.sf h3{font-size:23px;color:#fff}
.sf-why{margin-top:8px;font-size:15px;color:var(--mute-d)}
.sf ul{list-style:none;margin-top:16px}
.sf li{position:relative;padding:9px 0 9px 22px;border-top:1px dashed var(--line-d);font-size:14.5px}
.sf li::before{content:"";position:absolute;left:0;top:21px;width:10px;height:1.5px;background:var(--lime)}

/* 教学法：童声分期卡片 */
.age-cards{display:grid;gap:14px;margin-top:32px}
.ac{padding:20px;border-radius:8px;background:var(--card);box-shadow:0 1px 0 var(--line)}
.ac h3{display:flex;align-items:baseline;justify-content:space-between;gap:10px;padding-bottom:12px;border-bottom:1px solid var(--line);font-size:21px}
.ac h3 small{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--blue);letter-spacing:0}
.ac dl{display:grid;grid-template-columns:68px 1fr;gap:8px 12px;margin-top:14px;font-size:14px}
.ac dt{padding-top:1px;font-size:12.5px;color:var(--mute)}

/* 教学法：和传统课的区别 */
.diff{list-style:none;margin-top:32px;border-top:1px solid var(--line-d)}
.diff li{display:grid;grid-template-columns:48px 1fr;gap:6px 12px;padding:20px 0;border-bottom:1px solid var(--line-d)}
.diff span{padding-top:2px;font-size:12px;letter-spacing:.12em}
.diff span:nth-of-type(1){color:var(--mute-d)}
.diff b:nth-of-type(1){font-weight:400;color:var(--mute-d);text-decoration:line-through;text-decoration-color:rgba(233,236,244,.35)}
.diff span:nth-of-type(2){color:var(--lime)}
.diff b:nth-of-type(2){font-weight:600;color:#fff}

/* 课程系统：一节课 */
.lesson{display:grid;gap:14px;margin-top:32px}
.ls{position:relative;overflow:hidden;padding:24px 20px 22px;border-radius:8px;background:var(--card);box-shadow:0 1px 0 var(--line)}
.ls::before{content:"";position:absolute;left:0;top:0;height:4px;width:calc(var(--m) / 90 * 100%);background:var(--blue)}
.ls .num{font-family:var(--display);font-size:50px;line-height:1;color:var(--ink)}
.ls .num small{color:var(--blue)}
.ls h3{margin-top:10px;font-size:19px}
.ls ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.ls li{padding:3px 10px;border-radius:999px;background:var(--paper);font-size:13px}

/* 学习阶段 */
.path{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:1px;margin-top:28px;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:var(--line)}
.path li{padding:14px 4px;background:var(--paper);text-align:center}
.path b{display:block;font-family:var(--display);font-size:22px;line-height:1.1;color:var(--blue)}
.path span{display:block;margin-top:4px;font-size:11.5px;line-height:1.35;color:var(--mute)}

/* 合作支持、研学营模块 */
.support,.mods{list-style:none;display:grid;margin-top:30px;border-top:1px solid var(--line)}
.sp,.mods li{display:grid;grid-template-columns:44px 1fr;gap:2px 8px;padding:22px 0;border-bottom:1px solid var(--line)}
.sp small,.mods small{grid-row:span 2;padding-top:4px;font-family:var(--serif);font-size:13px;color:var(--blue)}
.sp h3,.mods h3{font-size:19px}
.sp p,.mods p{font-size:14.5px;color:var(--mute)}
.sp a{color:var(--blue);border-bottom:1px solid}
.mods{border-color:var(--line-d)}
.mods li{border-color:var(--line-d)}
.mods small{color:var(--lime)}
.mods h3{color:#fff}
.mods p{color:var(--mute-d)}
.forms3{display:grid;gap:12px}
.forms3 article{padding:22px 20px;border-radius:8px;background:var(--card);box-shadow:0 1px 0 var(--line)}
.forms3 h3{font-size:22px}
.forms3 p{margin-top:6px;font-size:14.5px;color:var(--mute)}

/* 研学营照片墙 */
.gal{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.gal figure{position:relative;overflow:hidden;aspect-ratio:1;border-radius:4px;background:var(--ink2)}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.gal figure:hover img{transform:scale(1.04)}
.gal .g-wide,.gal .g-tall{grid-column:span 2;aspect-ratio:3/2}
.gal .g-tall img{object-position:50% 28%}
.gal figcaption{position:absolute;left:10px;bottom:10px;padding:3px 9px;border-radius:3px;background:rgba(11,16,34,.6);color:#fff;font-size:12px}

/* 流程 */
.flow{list-style:none;display:grid;margin-top:30px}
.flow li{position:relative;display:grid;grid-template-columns:50px 1fr;gap:2px 8px;padding-bottom:26px}
.flow li::before{content:"";position:absolute;left:18px;top:40px;bottom:6px;width:1px;background:var(--line)}
.flow li:last-child{padding-bottom:0}
.flow li:last-child::before{display:none}
.flow b{grid-row:span 2;display:grid;place-items:center;width:37px;height:37px;border-radius:50%;background:var(--ink);color:var(--lime);font-family:var(--display);font-size:16px}
.flow h3{padding-top:5px;font-size:19px}
.flow p{font-size:14.5px;color:var(--mute)}
.flow-d li::before{background:var(--line-d)}
.flow-d b{background:var(--lime);color:var(--ink)}
.flow-d h3{color:#fff}
.flow-d p{color:var(--mute-d)}

/* 时间线 */
.tl{list-style:none;margin-top:30px}
.tl li{position:relative;padding:0 0 28px 30px;break-inside:avoid}
.tl li::before{content:"";position:absolute;left:0;top:9px;width:11px;height:11px;border:2px solid var(--blue);border-radius:50%;background:var(--paper)}
.tl li::after{content:"";position:absolute;left:5px;top:24px;bottom:2px;width:1px;background:var(--line)}
.tl li:last-child::after{display:none}
.tl time{display:block;font-family:var(--display);font-size:22px;line-height:1.25;color:var(--blue)}
.tl h3{margin-top:4px;font-size:18px}
.tl p{margin-top:4px;font-size:15px;color:var(--mute)}
.tl h3+p{margin-top:2px;font-size:14px}

/* 关于：档案、故事 */
.facts-t{width:100%;border-collapse:collapse;font-size:15px}
.facts-t th,.facts-t td{padding:14px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.facts-t tr:first-child>*{border-top:1px solid var(--line)}
.facts-t th{width:84px;padding-right:12px;padding-top:15px;font-size:13.5px;font-weight:400;color:var(--mute)}
.quote-d{color:#fff}
.quote-d::before{color:var(--lime)}
.story-long{margin-top:32px}
.story-long>p{margin-top:16px;font-size:15.5px;color:var(--mute-d)}
.story-long>p:first-child{margin-top:0}
.mission-d{border-top-color:var(--line-d)}
.mission-d span{color:var(--mute-d)}
.mission-d p{color:#fff}

/* 创始团队 */
.person{display:grid;gap:22px;padding:44px 0;border-top:1px solid var(--line)}
.person:first-child{padding-top:4px;border-top:0}
.person-pic{max-width:300px}
.person-pic img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:4px}
.person-role{font-family:var(--serif);font-size:13px;letter-spacing:.14em;color:var(--blue)}
.person h2{margin-top:6px;font-size:42px;line-height:1.1}
.person-sub{margin-top:8px;font-weight:600}
.person-lead{margin-top:14px;font-size:15.5px;color:var(--mute)}
.person ul{list-style:none;margin-top:18px;border-top:1px solid var(--line)}
.person li{position:relative;padding:10px 0 10px 18px;border-bottom:1px solid var(--line);font-size:14.5px}
.person li::before{content:"";position:absolute;left:0;top:22px;width:8px;height:1.5px;background:var(--blue)}

/* ---------- 文章 ---------- */
.phead-art{padding-bottom:40px}
.phead-art h1{max-width:22em;font-size:clamp(28px,7.6vw,44px);line-height:1.3}
.art-aud{display:inline-block;margin:22px 0 12px;padding:3px 10px;border-radius:3px;background:var(--blue);font-size:12.5px;font-weight:600;letter-spacing:.1em}
.art-aud.aud-c{background:var(--lime);color:var(--ink)}
.art-meta{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:16px;font-size:13px;color:var(--mute-d)}
.art-wrap{padding-top:28px;padding-bottom:64px}
.art-cover{margin:0 calc(var(--gut) * -1) 28px}
.art-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;object-position:50% 30%}
.prose{font-size:16.5px;line-height:1.9}
.prose>*+*{margin-top:1.1em}
.prose h2{margin-top:2.2em;font-size:24px;line-height:1.35;scroll-margin-top:calc(var(--top) + 16px)}
.prose h3{margin-top:1.8em;font-size:19px}
.prose ul,.prose ol{padding-left:1.4em}
.prose li+li{margin-top:.45em}
.prose strong{background:linear-gradient(transparent 62%,rgba(197,241,30,.75) 62%)}
.prose a{color:var(--blue);border-bottom:1px solid rgba(23,67,166,.35)}
.prose em{font-style:normal;font-size:14px;color:var(--mute)}
.tbl{overflow-x:auto;margin:0 calc(var(--gut) * -1);padding:0 var(--gut);-webkit-overflow-scrolling:touch}
.prose table{min-width:100%;border-collapse:collapse;background:var(--card);font-size:14px;line-height:1.6}
.prose th,.prose td{padding:9px 10px;border:1px solid var(--line);text-align:left;vertical-align:top}
.prose th{background:var(--ink);color:#fff;font-weight:600;white-space:nowrap}
.prose td:first-child{min-width:5.5em;font-weight:600}
.toc{padding:18px 20px;border-radius:8px;background:var(--paper2)}
.toc b{display:block;font-size:12px;letter-spacing:.24em;color:var(--mute)}
.toc ol{margin-top:8px;padding-left:1.3em;font-size:15px}
.toc a{border:0;color:var(--text)}
.art-foot{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--mute)}
.art-side{display:grid;align-content:start;gap:22px;margin-top:40px}
.side-card{padding:24px 22px;border-radius:10px}
.side-c{background:var(--lime);color:var(--ink)}
.side-b{background:var(--blue) var(--grain);color:#fff}
.side-card h3{margin-top:12px;font-size:20px}
.side-card p{margin-top:6px;font-size:14px;opacity:.85}
.side-card .btn{width:100%;margin-top:16px}
.side-c .btn{background:var(--ink);color:#fff}
.side-b .btn{background:#fff;color:var(--blue)}
.side-list h3{padding-bottom:10px;border-bottom:1px solid var(--line);font-size:16px}
.side-list a{display:block;padding:12px 0;border-bottom:1px solid var(--line);font-size:14.5px;line-height:1.55}
.side-list em{margin-right:8px}
.side-list a:hover{color:var(--blue)}
.note-box{padding:12px 14px;border:1px dashed var(--blue);border-radius:6px;color:var(--blue);font-size:14px}

/* ---------- 表单：机构 / 老师 = 蓝底，学员家长 = 绿底 ---------- */
.lead{padding:72px 0 80px;scroll-margin-top:var(--top)}
.lead-b{background:var(--blue) var(--grain);color:#fff}
.lead-c{background:var(--lime);color:var(--ink)}
.lead-in{display:grid;gap:30px}
.lead-tag{display:inline-block;padding:3px 10px;border-radius:3px;font-size:12.5px;font-weight:600;letter-spacing:.12em}
.lead-b .lead-tag,.side-b .lead-tag{background:rgba(255,255,255,.16)}
.lead-c .lead-tag,.side-c .lead-tag{background:var(--ink);color:var(--lime)}
.lead-copy h2{margin-top:16px;font-size:clamp(30px,8.4vw,42px)}
.lead-copy>p:not(.lead-tag){margin-top:14px;font-size:15.5px;opacity:.9}
.lead-copy>p.lead-other{padding:12px 14px;border-radius:8px;font-size:14px;opacity:1}
.lead-b .lead-other{background:rgba(11,16,34,.22)}
.lead-c .lead-other{background:rgba(11,16,34,.08)}
.lead-other a{font-weight:700;border-bottom:1px solid}
.lead-tel a{font-size:19px;font-weight:700}
.lead-form{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:14px 12px;padding:22px 18px;border-radius:12px;background:#fff;color:var(--text);box-shadow:0 30px 60px -30px rgba(11,16,34,.5)}
.lead-form label{display:grid;gap:6px;align-content:start}
.lead-form .full{grid-column:1/-1}
.lead-form label>span{font-size:13px;font-weight:600}
.req{margin-left:2px;color:var(--red)}
.lead-form input,.lead-form select,.lead-form textarea{width:100%;height:48px;padding:0 14px;border:1px solid #D9D5CB;border-radius:8px;background:#FBFAF7;font-size:16px;-webkit-appearance:none;appearance:none;transition:border-color .2s,box-shadow .2s,background .2s}
.lead-form select{padding-right:36px;background:#FBFAF7 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236B7183' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 14px center}
.lead-form textarea{height:auto;padding:12px 14px;resize:vertical}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{outline:none;border-color:var(--blue);background-color:#fff;box-shadow:0 0 0 3px rgba(23,67,166,.15)}
.lead-form .bad{border-color:var(--red)!important;box-shadow:0 0 0 3px rgba(214,58,47,.12)!important}
.lead-form .agree{display:flex;align-items:flex-start;gap:10px}
.lead-form .agree input{flex:none;width:18px;height:18px;margin:3px 0 0;padding:0;-webkit-appearance:checkbox;appearance:auto;accent-color:var(--blue)}
.lead-form .agree span{font-size:13px;font-weight:400;color:var(--mute)}
.agree a{color:var(--blue)}
.lead-form .btn{grid-column:1/-1;width:100%;height:54px;background:var(--ink);color:#fff;font-size:16px}
.lead-form .btn:disabled{opacity:.6;cursor:default}
.form-msg{font-size:14px}
.form-msg:empty{display:none}
.form-msg.ok{color:#1F7A3A;font-weight:600}
.form-msg.err{color:var(--red)}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0}

/* ---------- 页脚 ---------- */
.foot{padding:56px 0 calc(110px + env(safe-area-inset-bottom));border-top:1px solid var(--line-d);background:var(--ink) var(--grain);color:var(--mute-d);font-size:14px}
.foot-brand img{width:auto;height:46px}
.foot-brand p{margin-top:12px;font-size:13px;letter-spacing:.1em}
.foot-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px 16px;margin-top:36px}
.foot-cols h3{margin-bottom:10px;font-family:var(--sans);font-weight:600;font-size:13px;letter-spacing:.14em;color:#fff}
.foot-cols a{display:block;padding:5px 0}
.foot-cols a:hover{color:var(--lime)}
.foot-info{display:grid;gap:6px;margin-top:36px;padding-top:22px;border-top:1px solid var(--line-d)}
.foot-info a{color:#fff;font-weight:600}
.foot-legal{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:20px;font-size:12px;opacity:.8}

/* ---------- 手机底部两个入口 ---------- */
.dock{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:1fr 1.15fr;gap:8px;padding:8px 10px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--line-d);background:rgba(11,16,34,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);transform:translateY(110%);transition:transform .35s var(--ease)}
.dock.show{transform:none}
.dock-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;height:52px;border-radius:10px;font-size:15px;font-weight:700;line-height:1.2;text-align:center}
.dock-btn small{margin-bottom:3px;font-size:10.5px;font-weight:600;letter-spacing:.08em;opacity:.8}
.dock-1.dock-b{background:var(--blue);color:#fff}
.dock-1.dock-c{background:var(--lime);color:var(--ink)}
.dock-2.dock-b{border:1px solid rgba(110,150,255,.6);color:#fff}
.dock-2.dock-c{border:1px solid rgba(197,241,30,.6);color:var(--lime)}

/* ---------- 出现动画：没 JS 时内容照常显示 ---------- */
.js .rv{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .rv.in{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (min-width:640px){
  :root{--gut:32px}
  .age-cards,.forms3{grid-template-columns:1fr 1fr}
  .ppl-row{grid-template-columns:repeat(4,1fr)}
  .rail{grid-auto-columns:46%}
  .rail-show{grid-auto-columns:36%}
  .doors-hero,.end-doors .doors,.doors-menu{grid-template-columns:1fr 1fr}
  .lead-form{padding:28px 26px}
}

/* ---------- 电脑 ---------- */
@media (min-width:900px){
  :root{--gut:48px;--top:76px}
  .brand img{height:40px}
  .top-cta{display:flex}
  .burger{margin-left:8px}
  .hero{min-height:100vh;align-items:center}
  .hero-bg{left:auto;width:58%}
  .hero-bg img{object-position:50% 30%}
  .hero-bg::after{background:linear-gradient(90deg,var(--ink) 0,rgba(11,16,34,.6) 22%,rgba(11,16,34,0) 55%),linear-gradient(0deg,var(--ink) 0,rgba(11,16,34,0) 28%),var(--grain)}
  .hero-in{padding-top:calc(var(--top) + 72px);padding-bottom:96px}
  .hero-in>*{max-width:620px}
  .hero h1{font-size:clamp(64px,6.6vw,88px)}
  .lede{font-size:17px}
  .hero-in>.ld:has(.doors-hero){max-width:700px}
  .doors-hero b{font-size:19px}
  .btns .btn{flex:0 0 auto}
  .marquee{padding:16px 0}
  .mq-track{font-size:30px;gap:32px;padding-right:32px}
  .nums{grid-template-columns:repeat(4,1fr)}
  .nums>div,.nums>div:nth-child(odd),.nums>div:nth-child(even){padding:36px 24px;border-right:1px solid var(--line-d)}
  .nums>div:last-child{border-right:0}
  .nums .num{font-size:64px}
  .nums-sec{padding:72px 0 80px}
  .sec{padding:128px 0}
  .sec-tight{padding:88px 0}
  .sec-tight-top{padding-top:72px}
  h2{font-size:clamp(42px,4.2vw,56px)}
  .sec-lede{font-size:17px}
  .split{display:grid;grid-template-columns:5fr 6fr;gap:88px;align-items:start}
  .split-media{grid-template-columns:6fr 5fr;align-items:center}
  .split-media .media{margin-top:0}
  .quote{font-size:30px}
  .rail{grid-auto-flow:row;grid-template-columns:repeat(3,1fr);gap:44px 28px;margin:56px 0 0;padding:0;overflow:visible}
  .rail-hint{display:none}
  .rail-show{grid-template-columns:repeat(var(--cols),1fr);gap:16px;padding-bottom:48px}
  .rail-show .show:nth-child(even){margin-top:48px;margin-bottom:-48px}
  .rail-apps{grid-template-columns:repeat(6,1fr);gap:36px 28px}
  .rail-apps .app:nth-child(-n+2){grid-column:span 3}
  .rail-apps .app:nth-child(n+3){grid-column:span 2}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0 28px;border-top:0}
  .steps li{grid-template-columns:1fr;border-top:1px solid var(--line-d)}
  .steps b{grid-row:auto;margin-bottom:18px;font-size:60px}
  .bleed img{aspect-ratio:21/9;object-position:50% 60%}
  .bleed figcaption{bottom:20px}
  .sec-flush{padding-top:96px}
  .sys-big{grid-template-columns:repeat(4,1fr)}
  .sys-big>div,.sys-big>div:nth-child(odd),.sys-big>div:nth-child(even){padding:24px 24px 22px;border-right:1px solid var(--line)}
  .sys-big>div:first-child{padding-left:0}
  .sys-big>div:last-child{border-right:0}
  .sys-big .num{font-size:56px}
  .ticks-plain{display:grid;grid-template-columns:1fr 1fr;column-gap:48px;border-top:0}
  .ticks-plain li{border-top:1px solid var(--line);border-bottom:0}
  .ppl-row{gap:28px}
  .online{display:grid;grid-template-columns:1fr 1fr;gap:0 72px;align-items:start;padding:80px 72px}
  .online .ticks{margin-top:0}
  .honors{display:grid;grid-template-columns:1fr 1fr;column-gap:56px}
  .honors li:nth-last-child(2):nth-child(odd){border-bottom:1px solid var(--line-d)}
  .honors-light li:nth-last-child(2):nth-child(odd){border-bottom-color:var(--line)}
  .posts{grid-template-columns:repeat(3,1fr);gap:0 36px;border-top:0}
  .post{padding:26px 0 0;border-top:1px solid var(--line);border-bottom:0}
  .end-doors{padding:120px 0 128px}
  .end-doors .doors{max-width:860px}
  .door{padding:22px 72px 22px 24px}
  .door b{font-size:22px}
  .door-sub{font-size:13.5px}
  .phead{padding:calc(var(--top) + 96px) 0 88px}
  .phead.has-pic{min-height:min(88vh,780px)}
  .phead-bg::after{background:linear-gradient(90deg,rgba(11,16,34,.92) 0,rgba(11,16,34,.55) 45%,rgba(11,16,34,.1) 100%),linear-gradient(0deg,var(--ink) 0,rgba(11,16,34,0) 40%),var(--grain)}
  .phead-in>*{max-width:780px}
  .phead h1{font-size:clamp(52px,5.4vw,76px)}
  .phead .lede{font-size:17px}
  .sf{grid-template-columns:150px 1fr;padding:44px 0}
  .sf-no{font-size:96px}
  .sf>div{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;align-items:start}
  .sf ul{grid-column:2;grid-row:1/span 2;margin-top:0}
  .age-cards{grid-template-columns:repeat(3,1fr);gap:18px}
  .diff li{grid-template-columns:60px 1fr 60px 1.4fr;gap:12px 20px;padding:26px 0}
  .lesson{display:flex;gap:18px}
  .ls{flex:var(--m) 1 0;padding:30px 28px}
  .ls::before{width:100%}
  .ls .num{font-size:64px}
  .path{grid-template-columns:repeat(10,1fr)}
  .path li{padding:18px 6px}
  .path b{font-size:26px}
  .support,.mods{grid-template-columns:repeat(3,1fr);gap:0 36px;border-top:0}
  .sp,.mods li{grid-template-columns:1fr;padding:26px 0 30px;border-top:1px solid var(--line);border-bottom:0}
  .mods li{border-top-color:var(--line-d)}
  .sp small,.mods small{grid-row:auto;margin-bottom:12px}
  .forms3{grid-template-columns:repeat(3,1fr);gap:18px}
  .gal{grid-template-columns:repeat(3,1fr);grid-auto-rows:250px;gap:14px}
  .gal figure,.gal .g-wide,.gal .g-tall{aspect-ratio:auto}
  .gal .g-wide{grid-column:span 2}
  .gal .g-tall{grid-column:3;grid-row:1/span 2}
  .flow{grid-auto-flow:column;grid-auto-columns:1fr;gap:28px}
  .flow li{grid-template-columns:1fr;padding:0}
  .flow li::before{left:52px;right:-14px;top:18px;bottom:auto;width:auto;height:1px}
  .flow li:last-child::before{display:none}
  .flow b{grid-row:auto;margin-bottom:16px}
  .tl{columns:2;column-gap:72px}
  .facts-t{font-size:16px}
  .facts-t th{width:140px}
  .story-long{margin-top:0}
  .person{grid-template-columns:300px 1fr;gap:72px;padding:72px 0}
  .person-pic{position:sticky;top:110px;align-self:start}
  .person h2{font-size:56px}
  .art-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:72px;max-width:1120px;padding-top:48px;padding-bottom:96px}
  .art-cover{margin:0 0 32px}
  .art-cover img{border-radius:8px}
  .tbl{margin:0;padding:0}
  .art-side{position:sticky;top:110px;margin-top:0}
  .lead{padding:120px 0}
  .lead-in{grid-template-columns:5fr 6fr;gap:80px;align-items:center}
  .lead-form{padding:36px 34px}
  .foot{padding-bottom:48px}
  .foot-top{display:grid;grid-template-columns:1fr 2fr;gap:64px}
  .foot-cols{grid-template-columns:repeat(3,1fr);margin-top:0}
  .foot-info{grid-auto-flow:column;justify-content:space-between}
  .dock{display:none}
}
@media (min-width:1100px){
  .nav{display:flex;gap:26px;margin-left:auto;font-size:14.5px}
  .nav a{position:relative;padding:6px 0;color:rgba(255,255,255,.8);transition:color .2s}
  .nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
  .nav a:hover{color:#fff}
  .nav a:hover::after,.nav a[aria-current]::after{transform:scaleX(1)}
  .nav a[aria-current]{color:#fff}
  .top-cta{margin-left:32px}
  .burger,.menu{display:none!important}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .rv{opacity:1;transform:none}
  .js .media.rv,.js .bleed.rv{clip-path:none}
  .js .media.rv img,.js .bleed.rv img{transform:none}
  html{scroll-behavior:auto}
}