/* ============================================================
   亮曰 · KongFusion 共享样式系统  v3「黑红」
   字体：阿里巴巴普惠体 3.0（自托管 subset）→ 苹方兜底
   原则：黑红主调 · 移动优先 · 深色区文字永不消失
   ============================================================ */

/* ---------- 字体（自托管 subset woff2，见 assets/fonts/） ---------- */
@font-face{
  font-family:"PuHui";font-style:normal;font-weight:400;font-display:swap;
  src:url("fonts/puhui-regular.woff2?v=5") format("woff2");
}
@font-face{
  font-family:"PuHui";font-style:normal;font-weight:700;font-display:swap;
  src:url("fonts/puhui-bold.woff2?v=5") format("woff2");
}
@font-face{
  font-family:"PuHui";font-style:normal;font-weight:900;font-display:swap;
  src:url("fonts/puhui-heavy.woff2?v=5") format("woff2");
}

:root{
  color-scheme:light only;
  /* 黑红品牌色 */
  --ink:#101114;        /* 近黑 主背景/品牌面 */
  --ink-soft:#1b1d22;   /* 次黑 */
  --ink-line:#2a2d34;   /* 深色区描边 */
  --red:#e1352b;        /* 亮曰主红 */
  --red-bright:#ff5147; /* 深底上的亮红 */
  --red-deep:#a81f17;   /* 暗红 渐变用 */
  --paper:#ffffff;      /* 正文白 */
  --soft:#f6f4f1;       /* 暖白 区块 */
  --soft2:#efece7;      /* 暖白 深一档 */
  --txt:#16181d;        /* 正文 */
  --txt2:#42464e;       /* 次正文 */
  --mut:#7c828d;        /* 弱化 */
  --line:#e8e6e1;       /* 浅描边 */
  --gold:#c9962f;       /* 极少量点缀 */
  --maxw:760px;
  --maxw-wide:1040px;
  --sans:"PuHui","PingFang SC","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);color:var(--txt);background:var(--paper);
  line-height:1.78;font-size:16px;font-weight:400;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  font-feature-settings:"kern" 1;
}
img{max-width:100%;display:block}
a{color:inherit}
b,strong{font-weight:700}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.wrap-wide{max-width:var(--maxw-wide);margin:0 auto;padding:0 22px}
.center{text-align:center}
.red{color:var(--red)}

/* ============ 导航（深色玻璃，每页统一黑红基调）============ */
.kf-nav{position:sticky;top:0;z-index:80;background:rgba(16,17,20,.86);
  backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07)}
.kf-nav .wrap-wide{display:flex;align-items:center;justify-content:space-between;height:60px}
.kf-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
.kf-brand img{width:30px;height:30px;border-radius:7px}
.kf-brand .wm{font-weight:900;font-size:18px;letter-spacing:.5px;line-height:1}
.kf-brand .wm i{color:var(--red-bright);font-style:normal}
.kf-brand .wm small{display:block;font-weight:400;font-size:10px;letter-spacing:2px;color:#9aa0ab;margin-top:2px}
.kf-links{display:flex;align-items:center;gap:22px}
.kf-links a{color:#cfd3da;font-size:14px;font-weight:500;text-decoration:none;transition:color .15s}
.kf-links a:hover,.kf-links a.on{color:#fff}
.kf-links a.on{color:var(--red-bright)}
.kf-nav .navcta{background:var(--red);color:#fff;padding:8px 18px;border-radius:999px;
  font-size:14px;font-weight:700;text-decoration:none;box-shadow:0 6px 18px rgba(225,53,43,.35)}
.kf-nav .en{color:#8a909b;font-size:12px;font-weight:600;text-decoration:none;letter-spacing:.5px}
/* 移动端汉堡 */
.kf-burger{display:none;background:none;border:0;color:#fff;cursor:pointer;padding:6px}
.kf-burger svg{display:block}
@media(max-width:720px){
  .kf-links{position:fixed;inset:60px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(16,17,20,.98);border-bottom:1px solid var(--ink-line);
    transform:translateY(-120%);transition:transform .26s ease;padding:6px 0 14px}
  .kf-links.open{transform:translateY(0)}
  .kf-links a{padding:13px 24px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.05)}
  .kf-links .navcta{margin:12px 24px 2px;text-align:center}
  .kf-burger{display:block}
}

/* ============ 通用区块 ============ */
section{padding:60px 0;position:relative}
.sec-line{border-bottom:1px solid var(--line)}
.sec-soft{background:var(--soft)}
.sec-ink{background:var(--ink);color:#eef0f3}
.sec-ink h2{color:#fff}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:3px;
  color:var(--red);text-transform:uppercase;margin-bottom:14px}
.sec-ink .eyebrow{color:var(--red-bright)}
h1{font-weight:900;letter-spacing:.3px;line-height:1.28}
h2{font-size:27px;font-weight:900;letter-spacing:.3px;line-height:1.34;margin-bottom:12px}
h3{font-size:19px;font-weight:700;line-height:1.4}
.lead{color:var(--mut);font-size:15.5px;margin-bottom:30px;max-width:44em}
.sec-ink .lead{color:#9ea4af}
p+p{margin-top:1em}
/* 换行美化：标题按整体平衡断行，正文避免末行孤字（结合意群、不生硬） */
h1,h2,h3{text-wrap:balance}
p,.lead,.kicker,.sub,.article p,.article li,.card p,.post p,.quote small{text-wrap:pretty}
/* 意群不拆：行内 .grp 包裹的短语整体折行，不在词中间断 */
.nowrap{white-space:nowrap}
.kg{display:inline-block}

/* ============ 按钮 ============ */
.btn{display:inline-block;background:var(--red);color:#fff;text-decoration:none;font-weight:700;
  padding:15px 36px;border-radius:999px;font-size:16.5px;border:0;cursor:pointer;
  box-shadow:0 12px 30px rgba(225,53,43,.34);transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(225,53,43,.42)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);box-shadow:none}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-dark{background:var(--ink);box-shadow:0 12px 30px rgba(16,17,20,.3)}
.sub{color:var(--mut);font-size:13px;margin-top:14px}
.sec-ink .sub{color:#8a909b}

/* ============ HERO（黑底 + 黑白侧脸）============ */
.hero{background:var(--ink);color:#fff;overflow:hidden;position:relative;border-bottom:1px solid var(--ink-line)}
.hero:before{content:"";position:absolute;inset:0;
  background:radial-gradient(120% 90% at 85% 15%,rgba(225,53,43,.20),transparent 55%);pointer-events:none}
.hero .grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;
  padding:64px 0 60px;position:relative;z-index:1}
.hero .tag{display:inline-block;border:1px solid rgba(255,255,255,.22);color:#cfd3da;
  font-size:12.5px;font-weight:600;letter-spacing:1px;padding:6px 15px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:38px;color:#fff}
.hero h1 b{color:var(--red-bright)}
.hero p.kicker{color:#bcc1cb;margin-top:20px;font-size:16px;max-width:30em}
.hero .acts{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero .portrait{position:relative}
.hero .portrait img{width:100%;border-radius:18px;filter:none;
  box-shadow:0 30px 70px rgba(0,0,0,.5);border:1px solid rgba(255,255,255,.08)}
.hero .portrait .badge{position:absolute;left:-10px;bottom:18px;background:var(--red);color:#fff;
  font-weight:900;font-size:13px;letter-spacing:.5px;padding:9px 15px;border-radius:12px;
  box-shadow:0 10px 26px rgba(225,53,43,.4);line-height:1.3}
.hero .portrait .badge small{display:block;font-weight:500;font-size:10.5px;opacity:.9;letter-spacing:1px}
@media(max-width:720px){
  .hero .grid{grid-template-columns:1fr;gap:26px;padding:44px 0 46px}
  .hero h1{font-size:26px}
  .hero .portrait{order:-1;max-width:320px;margin:0 auto}
}

/* ---- 全屏铺满式 Hero（人物照覆盖整个 hero，文字压底）---- */
.hero.cover{position:relative;min-height:clamp(600px,94vh,900px);overflow:hidden}
.hero.cover .bg{position:absolute;inset:0;z-index:0}
.hero.cover .bg img{width:100%;height:100%;object-fit:cover;object-position:50% 28%}
.hero.cover:before{z-index:1;background:
  linear-gradient(to bottom,rgba(16,17,20,.5) 0%,rgba(16,17,20,0) 18%,rgba(16,17,20,0) 30%,rgba(16,17,20,.5) 54%,rgba(16,17,20,.9) 76%,rgba(16,17,20,.99) 100%),
  radial-gradient(85% 55% at 50% 26%,rgba(225,53,43,.18),transparent 72%)}
.hero.cover .wrap{position:relative;z-index:2;min-height:clamp(600px,94vh,900px);
  display:flex;flex-direction:column;justify-content:flex-end;align-items:center;text-align:center;
  padding:100px 22px 54px}
.hero.cover .hero-copy{max-width:620px}
.hero.cover .figbadge{display:inline-block;margin-bottom:16px;background:var(--red);color:#fff;
  font-weight:900;font-size:13px;letter-spacing:.5px;padding:8px 17px;border-radius:999px;
  box-shadow:0 10px 26px rgba(225,53,43,.42)}
.hero.cover h1{font-size:38px;text-shadow:0 2px 24px rgba(0,0,0,.45)}
.hero.cover .kicker{margin:18px auto 0;text-shadow:0 1px 14px rgba(0,0,0,.5)}
.hero.cover .acts{justify-content:center;margin-top:28px}
.hero.cover .sub{margin-top:14px}
@media(max-width:720px){
  .hero.cover{min-height:90vh}
  .hero.cover .wrap{min-height:90vh;padding:92px 18px 40px}
  .hero.cover h1{font-size:24px}
  .hero.cover .hero-copy{max-width:none}
}

/* ============ 统计/资质数字 ============ */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.stats.s4{grid-template-columns:repeat(4,1fr)}
.stat{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:22px 16px;text-align:center}
.sec-ink .stat{background:var(--ink-soft);border-color:var(--ink-line)}
.stat .n{font-size:32px;font-weight:900;color:var(--red);letter-spacing:.5px;line-height:1}
.sec-ink .stat .n{color:var(--red-bright)}
.stat .l{font-size:12.5px;color:var(--mut);margin-top:8px;line-height:1.5}
@media(max-width:560px){.stat .n{font-size:25px}.stat{padding:18px 10px}.stats.s4{grid-template-columns:repeat(2,1fr)}}

/* ============ check 清单 ============ */
.check{list-style:none}
.check li{padding:13px 0 13px 36px;position:relative;border-bottom:1px dashed var(--line);font-size:16px}
.check li:last-child{border-bottom:0}
.check li:before{content:"";position:absolute;left:4px;top:19px;width:16px;height:16px;border-radius:50%;
  background:var(--red);box-shadow:0 0 0 4px rgba(225,53,43,.13)}
.check li:after{content:"";position:absolute;left:9px;top:23px;width:5px;height:9px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(40deg)}

/* ============ quote 金句 ============ */
.quote{background:var(--soft);border-left:4px solid var(--red);padding:24px 26px;
  border-radius:0 14px 14px 0;font-size:20px;font-weight:700;line-height:1.62}
.quote small{display:block;color:var(--mut);font-weight:400;font-size:14.5px;margin-top:12px;line-height:1.7}
.sec-ink .quote{background:var(--ink-soft);border-color:var(--red-bright)}
.sec-ink .quote small{color:#9ea4af}

/* ============ 卡片网格（周/模块/真相）============ */
.cards{display:grid;gap:14px}
.cards.c2{grid-template-columns:1fr 1fr}
@media(max-width:560px){.cards.c2{grid-template-columns:1fr}}
.card{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:20px 22px}
.card .k{color:var(--red);font-weight:900;font-size:13px;letter-spacing:1px}
.card h3{margin:5px 0 6px}
.card p{color:var(--txt2);font-size:14.5px}
.sec-ink .card{background:var(--ink-soft);border-color:var(--ink-line)}
.sec-ink .card p{color:#aab0bb}
.sec-ink .card .k{color:var(--red-bright)}

/* ============ 价值堆叠 ============ */
.stack{border:1px solid var(--line);border-radius:16px;overflow:hidden}
.stack .row{display:flex;justify-content:space-between;gap:14px;padding:14px 20px;
  border-bottom:1px solid var(--line);font-size:15px}
.stack .row:last-child{border:0}
.stack .v{color:var(--mut);white-space:nowrap}
.stack .row.total{background:var(--ink);color:#fff;font-weight:900}
.stack .row.total .v{color:var(--red-bright)}

/* ============ 学员反馈卡（before/after）============ */
.story{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:24px;
  box-shadow:0 16px 40px rgba(16,17,20,.06)}
.story + .story{margin-top:18px}
.ba{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 20px}
.ba figure{margin:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--soft)}
.ba img{width:100%;display:block;aspect-ratio:4/5;object-fit:cover;object-position:center 35%}
.ba figcaption{font-size:12.5px;color:var(--mut);text-align:center;padding:9px 6px;font-weight:600}
.ba figcaption b{color:var(--red)}
.story-one{float:right;width:230px;margin:0 0 14px 22px;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;background:var(--soft)}
.story-one img{width:100%;display:block;aspect-ratio:4/5;object-fit:cover;object-position:center top}
.story-one figcaption{font-size:12.5px;color:var(--mut);text-align:center;padding:8px 6px;font-weight:600}
.story-one figcaption b{color:var(--red)}
@media(max-width:560px){.story-one{float:none;width:auto;max-width:280px;margin:0 auto 18px}}
.story .tquote{font-size:18px;font-weight:700;line-height:1.62;border-left:4px solid var(--red);
  padding-left:16px;margin-top:20px}
.story .tquote{clear:both}
.story .tquote span{display:block;font-weight:400;font-size:15px;color:var(--txt2);margin-top:8px}
.story-who{margin-top:18px;font-weight:700;font-size:15.5px}
.story-who small{display:block;font-weight:400;color:var(--mut);font-size:13px;margin-top:4px}

/* ============ 价格盒 ============ */
.price{text-align:center;background:linear-gradient(165deg,#1b1d22,#101114);color:#fff;
  border:1px solid var(--ink-line);border-radius:20px;padding:38px 24px;
  box-shadow:0 24px 60px rgba(16,17,20,.28)}
.price .now{font-size:50px;font-weight:900;color:#fff;line-height:1}
.price .now small{font-size:20px;font-weight:700}
.price .old{color:#8a909b;text-decoration:line-through;margin-left:10px;font-size:18px}
.price .lim{display:inline-block;background:rgba(225,53,43,.16);color:var(--red-bright);
  font-size:13px;font-weight:700;padding:6px 16px;border-radius:999px;margin-top:16px}

/* ============ 保障盒 ============ */
.guard{background:linear-gradient(160deg,#11140f,#0c0d0a);color:#dff3e4;border:1px solid #233322;
  border-radius:18px;padding:30px 26px;text-align:center}
.guard h2{color:#fff}
.guard p{margin-top:10px;color:#bfe0c9}
.guard b{color:#fff}

/* ============ 创始人/人物 ============ */
.person{display:grid;grid-template-columns:200px 1fr;gap:26px;align-items:start}
.person .ph{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:0 16px 40px rgba(0,0,0,.12)}
.person .ph img{width:100%;aspect-ratio:3/4;object-fit:cover}
.person p{color:var(--txt2);font-size:15.5px}
@media(max-width:560px){.person{grid-template-columns:1fr;gap:18px}.person .ph{max-width:240px}}

/* ============ 文章正文排版 ============ */
.article{max-width:680px}
.article .meta{color:var(--mut);font-size:13.5px;letter-spacing:.5px;margin-bottom:8px}
.article h1{font-size:32px;margin-bottom:14px}
.article .sub{color:var(--txt2);font-size:17px;margin:0 0 26px;font-weight:500}
.article p{font-size:17px;line-height:1.92;color:#23262c;margin:0 0 1.15em}
.article h2{font-size:22px;margin:34px 0 12px}
.article h3{font-size:18px;margin:26px 0 8px;color:var(--red)}
.article blockquote{border-left:4px solid var(--red);background:var(--soft);
  padding:16px 20px;border-radius:0 12px 12px 0;margin:22px 0;font-weight:700;font-size:18px}
.article ul,.article ol{margin:0 0 1.15em 1.2em}
.article li{margin:.4em 0;font-size:16.5px}
.article .src{font-size:13.5px;color:var(--mut);border-top:1px solid var(--line);
  margin-top:30px;padding-top:16px;line-height:1.8}

/* 文章列表 */
.posts{display:grid;gap:0;border-top:1px solid var(--line)}
.post{display:block;text-decoration:none;color:inherit;padding:22px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .18s,background .18s}
.post:hover{padding-left:12px;background:var(--soft)}
.post .num{color:var(--red);font-weight:900;font-size:13px;letter-spacing:1px}
.post h3{margin:5px 0 5px;font-size:19px}
.post p{color:var(--txt2);font-size:14.5px}
.post .more{color:var(--red);font-size:13.5px;font-weight:700;margin-top:8px;display:inline-block}

/* ============ 自检表/留资 ============ */
.capture{background:var(--ink);color:#fff;border-radius:20px;padding:34px 26px;text-align:center;
  border:1px solid var(--ink-line)}
.capture h2{color:#fff}
.capture .lead{color:#9ea4af;margin:0 auto 22px}
.capture input{width:100%;max-width:340px;padding:14px 16px;border:1px solid var(--ink-line);
  background:var(--ink-soft);color:#fff;border-radius:12px;font-size:15px;margin:8px 0;font-family:inherit}
.capture input::placeholder{color:#7c828d}
.qrs{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:28px}
.qr{background:#fff;border-radius:16px;padding:14px;width:200px}
.qr img{width:160px;height:160px;display:block;margin:0 auto;border-radius:8px}
.qrlab{font-size:13px;color:var(--txt2);margin-top:10px;line-height:1.55}
.qrlab b{color:var(--txt)}

/* ============ FAQ ============ */
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{font-weight:700;cursor:pointer;font-size:16.5px;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:2px;top:-2px;color:var(--red);font-weight:900;font-size:22px;transition:transform .2s}
.faq details[open] summary:after{transform:rotate(45deg)}
.faq p{color:var(--txt2);margin-top:10px;font-size:15px}

/* ============ CTA 横幅 ============ */
.cta-band{background:linear-gradient(135deg,var(--red-deep),var(--red));color:#fff;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.92);margin:8px auto 24px;max-width:34em}

/* ============ 页脚 ============ */
.kf-foot{background:var(--ink);color:#8a909b;font-size:13px;padding:40px 0 34px;line-height:1.95;
  border-top:1px solid var(--ink-line)}
.kf-foot .wrap-wide{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.kf-foot .fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:900;font-size:16px}
.kf-foot .fbrand img{width:26px;height:26px;border-radius:6px}
.kf-foot a{color:#aeb4bf;text-decoration:none}
.kf-foot a:hover{color:#fff}
.kf-foot .flinks{display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px}
.kf-foot .disc{width:100%;border-top:1px solid var(--ink-line);margin-top:6px;padding-top:18px;color:#7c828d}
.kf-foot .disc .red{color:var(--red-bright)}

/* ============ 学员反馈表单 ============ */
.kf-form{max-width:640px}
.kf-form .fs{margin:0 0 28px}
.kf-form .fs h3{font-size:14px;color:var(--red);font-weight:900;letter-spacing:1px;margin:0 0 12px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.kf-form label.q{display:block;font-weight:700;font-size:15px;margin:16px 0 6px}
.kf-form label.q small{font-weight:400;color:var(--mut)}
.kf-form input[type=text],.kf-form input[type=email],.kf-form input[type=date],.kf-form textarea{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;background:#fff;color:var(--txt);-webkit-appearance:none}
.kf-form textarea{min-height:92px;resize:vertical;line-height:1.6}
.kf-form .two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.kf-form .baline{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:8px;align-items:center;margin:7px 0}
.kf-form .baline .lab{color:var(--txt2);font-size:14px}
.kf-form .baline input{padding:9px 11px;font-size:14px}
.kf-form .baline .hd{font-size:12px;color:var(--mut);font-weight:700;text-align:center}
.kf-form .opts{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:8px}
.kf-form .opt{display:block;position:relative;padding-left:27px;font-size:14.5px;font-weight:400;line-height:1.65;cursor:pointer}
.kf-form .opt input{position:absolute;left:0;top:3px;width:18px;height:18px;margin:0;accent-color:var(--red)}
.kf-form .authbox{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.kf-form .authbox .opt{margin:11px 0}
.kf-form .hint{font-size:13px;color:var(--mut);margin-top:6px;line-height:1.6}
.kf-form .notebox{background:#fff6f5;border:1px solid #f2c9c2;border-radius:10px;padding:13px 16px;font-size:14px;color:var(--txt2);line-height:1.7}
@media(max-width:560px){
  .kf-form .baline{grid-template-columns:1fr 1fr;gap:6px 8px}
  .kf-form .baline .lab{grid-column:1 / -1;margin-bottom:2px}
  .kf-form .baline .hd{display:none}
}

/* 通用淡入（无障碍：reduce-motion 关闭） */
.fx{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.fx.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.fx{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}