/* 张良人价官网 · 设计令牌 */
:root{
  --black:#181818; --white:#FFFFFF; --red:#D3251C;
  --gray:#5C5C5C; --gray-on-black:#BDBDBD; --line:#000000; --soft:#F2F2F2;
  --cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
  --num:"DIN Alternate","Bahnschrift","DIN Condensed","Helvetica Neue",Arial,sans-serif;
  --wrap:1160px; --nav:64px;
  --pad-x:clamp(20px,5vw,48px); --sec:clamp(72px,11vw,148px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav) + 16px)}
body{font-family:var(--cn);color:var(--black);background:var(--white);font-size:17px;line-height:1.75;letter-spacing:.01em}
img,svg{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.skip{position:absolute;left:-9999px;top:0;background:var(--red);color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:16px;top:16px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad-x)}

/* 区块：通黑 / 通白 */
.sec{padding:var(--sec) 0}
.sec.dark{background:var(--black);color:var(--white)}
.sec.dark .muted{color:var(--gray-on-black)}
.muted{color:var(--gray)}
.sec + .sec.light-continue{padding-top:0}

/* 字号 */
.h1{font-size:clamp(38px,6.6vw,92px);line-height:1.14;font-weight:900;letter-spacing:-.01em}
.h1 .tail{display:block;color:var(--red)}
.h2{font-size:clamp(28px,4.2vw,54px);line-height:1.22;font-weight:900}
.h3{font-size:clamp(21px,2.2vw,28px);line-height:1.4;font-weight:800}
.lead{font-size:clamp(18px,1.9vw,23px);line-height:1.7;max-width:34em}
.small{font-size:14px;line-height:1.7}
.measure{max-width:36em}
.kicker{font-size:15px;font-weight:700;letter-spacing:.04em;margin-bottom:22px}
.sec.dark .kicker{color:var(--gray-on-black)}

/* 导航 */
.nav{position:fixed;inset:0 0 auto 0;height:var(--nav);z-index:50;transition:transform .25s ease, background-color .2s ease, color .2s ease;background:var(--white);color:var(--black);border-bottom:1px solid rgba(0,0,0,.08)}
html[data-nav="dark"] .nav{background:var(--black);color:var(--white);border-bottom-color:rgba(255,255,255,.12)}
.nav.hide{transform:translateY(-100%)}
.nav .wrap{height:100%;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:900;font-size:20px;letter-spacing:.06em;white-space:nowrap}
.mark{width:34px;height:34px;border-radius:50%;background:currentColor;display:grid;place-items:center}
.mark span{color:var(--white);font-size:19px;font-weight:900;line-height:1}
html[data-nav="dark"] .mark span{color:var(--black)}
.nav ul{list-style:none;display:flex;gap:26px;margin-left:auto}
.nav ul a{text-decoration:none;font-size:15px;font-weight:600;padding:6px 0;border-bottom:2px solid transparent}
.nav ul a:hover,.nav ul a[aria-current="page"]{border-bottom-color:var(--red)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;font:inherit;font-size:16px;font-weight:800;text-decoration:none;border:2px solid currentColor;cursor:pointer;background:transparent;color:inherit;white-space:nowrap}
.btn.solid{background:var(--red);border-color:var(--red);color:var(--white)}
.btn.solid:hover{background:#B31F17;border-color:#B31F17}
.btn.ghost:hover{background:currentColor}
.btn.ghost:hover span{color:var(--white)}
.sec.dark .btn.ghost:hover span{color:var(--black)}
.nav .btn{min-height:40px;padding:0 16px;font-size:15px}
.menu-btn{display:none;margin-left:auto;background:none;border:2px solid currentColor;color:inherit;font:inherit;font-weight:800;font-size:15px;padding:6px 14px;cursor:pointer}
.drawer{position:fixed;inset:0;background:var(--black);color:var(--white);z-index:60;padding:calc(var(--nav) + 24px) var(--pad-x) 40px;display:none;overflow:auto}
.drawer.open{display:block}
.drawer ul{list-style:none}
.drawer li a{display:block;font-size:30px;font-weight:900;padding:12px 0;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.15)}
.drawer .close{position:absolute;top:14px;right:var(--pad-x);background:none;border:2px solid #fff;color:#fff;font:inherit;font-weight:800;padding:6px 14px;cursor:pointer}
.drawer .btn{margin-top:28px}
@media (max-width:1180px){.nav ul,.nav .btn.desk{display:none}.menu-btn{display:inline-block}}

/* 首屏 */
.hero{padding-top:calc(var(--nav) + clamp(56px,9vw,120px))}
.hero .who{font-size:16px;font-weight:700;color:var(--gray-on-black);margin-bottom:28px;letter-spacing:.04em}
.hero .lead{margin-top:32px}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}

/* 人价公式（全站唯一的“大动作”） */
.eq{display:grid;grid-template-columns:clamp(44px,7vw,96px) 1fr;align-items:baseline;row-gap:4px;margin-top:32px}
.eq .op{font-family:var(--num);font-weight:700;color:var(--red);font-size:clamp(34px,6vw,80px);line-height:1.2}
.eq .t{font-size:clamp(34px,6vw,80px);font-weight:900;line-height:1.2}
.eq .rule{grid-column:1/-1;height:6px;background:var(--black);margin:20px 0 10px}
.eq .op.res{font-size:clamp(44px,8vw,112px)}
.eq .t.res{font-size:clamp(56px,10.5vw,144px);color:var(--red);letter-spacing:.06em}
.eq.reveal .row{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.eq.reveal.go .row{opacity:1;transform:none}
.verdict{margin-top:44px;font-size:clamp(20px,2.4vw,30px);font-weight:800;line-height:1.6}

/* 行列表：粗线分隔 */
.rows{border-top:6px solid currentColor;margin-top:40px}
.row-item{display:grid;grid-template-columns:minmax(120px,220px) 1fr;gap:24px;padding:30px 0;border-bottom:2px solid currentColor}
.row-item .k{font-size:clamp(24px,2.8vw,36px);font-weight:900;line-height:1.3}
.row-item p{max-width:38em}
@media (max-width:640px){.row-item{grid-template-columns:1fr;gap:8px}}

/* 数字 */
.stats{display:grid;grid-template-columns:repeat(3,1fr);margin-top:48px;border-top:6px solid currentColor}
.stat{padding:26px 24px 0 0}
.stat + .stat{padding-left:24px;border-left:2px solid #D9D9D9}
.stat .n{font-family:var(--num);font-weight:700;font-size:clamp(48px,6vw,84px);line-height:1}
.stat .n small{font-family:var(--cn);font-size:.42em;font-weight:900;margin-left:4px}
.stat .w{font-size:clamp(18px,1.8vw,22px);font-weight:900;margin-top:12px}
@media (max-width:720px){.stats{grid-template-columns:1fr}.stat + .stat{padding-left:0;border-left:0;border-top:2px solid #D9D9D9;margin-top:22px}}

/* 表格 */
.table-wrap{overflow-x:auto;margin-top:36px;-webkit-overflow-scrolling:touch}
table.cmp{width:100%;min-width:720px;border-collapse:collapse;font-size:16px}
.cmp th,.cmp td{text-align:left;vertical-align:top;padding:16px 18px;border-bottom:2px solid var(--black)}
.cmp thead th{border-bottom:6px solid var(--black);font-size:17px;font-weight:900}
.cmp .ours{background:var(--black);color:var(--white)}
.cmp tbody th{font-weight:800;width:16%}

/* 两栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,96px);margin-top:40px}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.list{list-style:none}
.list li{padding:14px 0;border-bottom:2px solid currentColor;font-weight:600}
.list li:first-child{border-top:6px solid currentColor}

/* 顺序步骤（只用于真正的先后顺序） */
.steps{list-style:none;counter-reset:s;margin-top:40px;border-top:6px solid currentColor}
.steps li{counter-increment:s;display:grid;grid-template-columns:72px 1fr;gap:16px;padding:24px 0;border-bottom:2px solid currentColor}
.steps li::before{content:counter(s);font-family:var(--num);font-weight:700;font-size:40px;line-height:1;color:var(--red)}
.steps b{display:block;font-size:20px;font-weight:900;margin-bottom:4px}

/* 档案卡 */
.card-file{border:6px solid var(--black);padding:28px;max-width:560px;font-size:16px;background:var(--white);color:var(--black)}
.card-file h3{font-size:22px;font-weight:900;margin-bottom:14px}
.card-file dl{display:grid;grid-template-columns:7.5em 1fr;row-gap:8px}
.card-file dt{font-weight:800}

/* 文章 */
.article{max-width:40em}
.article h1{font-size:clamp(30px,4.6vw,56px);line-height:1.25;font-weight:900}
.article .meta{margin-top:18px;color:var(--gray);font-size:15px}
.article h2{font-size:26px;font-weight:900;margin:48px 0 14px}
.article p{margin-top:18px}
.article .note{margin-top:28px;padding:18px 20px;border-left:6px solid var(--red);background:var(--soft);font-size:15px}
.article table{border-collapse:collapse;margin-top:20px;width:100%;font-size:16px}
.article td,.article th{padding:10px 12px;border-bottom:2px solid var(--black);text-align:left}
.post-list{list-style:none;border-top:6px solid currentColor;margin-top:40px}
.post-list a{display:block;padding:28px 0;border-bottom:2px solid currentColor;text-decoration:none}
.post-list a:hover .h3{color:var(--red)}
.post-list p{margin-top:8px}

/* 联系 */
.qr{width:200px;height:200px;border:6px solid var(--black);display:grid;place-items:center;background:var(--white);color:var(--gray);font-size:15px;text-align:center}
.contact-grid{display:grid;grid-template-columns:auto 1fr;gap:clamp(28px,5vw,64px);align-items:start;margin-top:40px}
@media (max-width:720px){.contact-grid{grid-template-columns:1fr}}

/* 页脚 */
.foot{background:var(--black);color:var(--gray-on-black);padding:56px 0 calc(40px + env(safe-area-inset-bottom,0px));font-size:14px}
.foot .brand{color:var(--white);font-size:18px}
.foot nav{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px}
.foot a{text-decoration:none}
.foot a:hover{color:var(--white)}
.foot .legal{margin-top:26px;line-height:2}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.eq.reveal .row{opacity:1;transform:none}}

/* ===== 展开收起（+ / −） ===== */
.acc{border-top:6px solid currentColor;margin-top:40px}
.acc details{border-bottom:2px solid currentColor}
.acc summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:22px 0;font-size:clamp(18px,1.9vw,23px);font-weight:800;line-height:1.45}
.acc summary::-webkit-details-marker{display:none}
.acc summary:hover{color:var(--red)}
.acc .ic{width:30px;height:30px;position:relative;flex:none}
.acc .ic::before,.acc .ic::after{content:"";position:absolute;left:50%;top:50%;width:20px;height:3px;background:currentColor;transform:translate(-50%,-50%)}
.acc .ic::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .2s ease}
.acc details[open] .ic::after{transform:translate(-50%,-50%) rotate(0deg)}
.acc .body{padding:0 0 28px;max-width:46em}
.acc .body p+p{margin-top:12px}
.acc .body ul{margin:10px 0 0 1.2em}
.acc .body li{margin-top:6px}
.acc .body a{font-weight:700}
.acc-tools{display:flex;justify-content:flex-end;margin-top:28px}
.acc-tools button{background:none;border:0;border-bottom:2px solid currentColor;color:inherit;font:inherit;font-size:15px;font-weight:700;cursor:pointer;padding:2px 0}
.acc + .acc-tools{margin-top:12px}

/* 交叉链接 */
.more{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:28px;font-weight:700}
.more a{text-decoration:none;border-bottom:2px solid var(--red);padding-bottom:2px}
.more a:hover{color:var(--red)}

/* 小号行列表（站内导读） */
.paths{display:grid;grid-template-columns:repeat(3,1fr);border-top:6px solid currentColor;margin-top:40px}
.paths a{display:block;padding:26px 24px 30px 0;text-decoration:none;border-bottom:2px solid currentColor}
.paths a + a{padding-left:24px;border-left:2px solid #D9D9D9}
.sec.dark .paths a + a{border-left-color:#333}
.paths .h3{margin-bottom:8px}
.paths a:hover .h3{color:var(--red)}
@media (max-width:820px){.paths{grid-template-columns:1fr}.paths a + a{padding-left:0;border-left:0}}

/* ===== 表单 ===== */
.form{margin-top:36px;max-width:760px}
.form .grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
.form .full{grid-column:1/-1}
@media (max-width:640px){.form .grid{grid-template-columns:1fr}}
.form label,.form legend{display:block;font-weight:800;font-size:15px;margin-bottom:8px}
.form .req::after{content:"＊";color:var(--red);margin-left:2px}
.form input[type=text],.form input[type=tel],.form input[type=number],.form select,.form textarea{width:100%;font:inherit;font-size:16px;padding:12px 14px;border:2px solid var(--black);border-radius:0;background:var(--white);color:var(--black);appearance:none}
.form textarea{min-height:110px;resize:vertical}
.form select{background-image:linear-gradient(45deg,transparent 50%,#000 50%),linear-gradient(135deg,#000 50%,transparent 50%);background-position:calc(100% - 20px) 52%,calc(100% - 14px) 52%;background-size:6px 6px;background-repeat:no-repeat;padding-right:40px}
.form fieldset{border:0}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips label{font-weight:600;font-size:15px;margin:0;display:inline-flex;align-items:center;gap:8px;border:2px solid var(--black);padding:8px 14px;cursor:pointer;background:var(--white);color:var(--black)}
.chips input{accent-color:var(--red)}
.form .check{display:flex;gap:10px;align-items:flex-start;font-weight:500;font-size:15px;margin:0}
.form .check input{margin-top:5px;accent-color:var(--red);width:18px;height:18px;flex:none}
.form .hint{font-size:14px;color:var(--gray);margin-top:6px;font-weight:400}
.sec.dark .form .hint{color:var(--gray-on-black)}
.form .err{color:var(--red);font-size:14px;font-weight:700;margin-top:6px;min-height:0}
.form [aria-invalid=true]{border-color:var(--red)!important}
.form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form .submit{margin-top:28px;display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.form-done{display:none;margin-top:36px;max-width:760px;border:6px solid currentColor;padding:28px}
.form-done.show{display:block}
.form-done pre{white-space:pre-wrap;font-family:inherit;font-size:15px;background:var(--soft);color:var(--black);padding:16px;margin-top:16px}
.sec.dark .form label,.sec.dark .form legend{color:var(--white)}

/* ===== 自测工具 ===== */
.tool{border-top:6px solid currentColor;margin-top:40px;padding-top:28px;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,64px)}
@media (max-width:900px){.tool{grid-template-columns:1fr}}
.tool .form{margin-top:0}
.result{background:var(--black);color:var(--white);padding:28px;align-self:start}
.result .big{font-family:var(--num);font-weight:700;font-size:clamp(44px,6vw,72px);line-height:1.05;color:var(--white)}
.result .big small{font-family:var(--cn);font-size:.36em;font-weight:900;margin-left:6px}
.result .lab{font-size:15px;color:var(--gray-on-black);margin-top:18px}
.result .lab:first-child{margin-top:0}
.result .red{color:var(--red)}
.result .note{font-size:14px;color:var(--gray-on-black);margin-top:20px;line-height:1.7}

/* ===== 白皮书 ===== */
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:6px solid currentColor;margin-top:48px}
.fact{padding:24px 20px 4px 0}
.fact + .fact{padding-left:20px;border-left:2px solid #333}
.fact .n{font-family:var(--num);font-weight:700;font-size:clamp(34px,4.2vw,58px);line-height:1.05;white-space:nowrap}
.fact .n small{font-family:var(--cn);font-size:.42em;font-weight:900;margin-left:4px}
.fact p{margin-top:10px;font-size:15px;line-height:1.6}
@media (max-width:900px){.facts{grid-template-columns:1fr 1fr}.fact:nth-child(3){padding-left:0;border-left:0}}
@media (max-width:520px){.facts{grid-template-columns:1fr}.fact + .fact{padding-left:0;border-left:0;border-top:2px solid #333}}
.wp-toc{list-style:none;border-top:6px solid var(--black);margin-top:24px}
.wp-toc a{display:block;padding:12px 0;border-bottom:2px solid var(--black);text-decoration:none;font-weight:700}
.wp-toc a:hover{color:var(--red)}
.wp .article{max-width:46em}
.wp .article h2{scroll-margin-top:calc(var(--nav) + 16px)}
.wp .article blockquote{margin-top:18px;padding:14px 18px;border-left:6px solid var(--red);background:var(--soft);font-weight:800}
.wp .article ol,.wp .article ul{margin:12px 0 0 1.3em}
.wp .article li{margin-top:8px}
.wp .article table{display:block;overflow-x:auto;white-space:normal}
.wp .article hr{border:0;border-top:2px solid var(--black);margin:40px 0}
.next{margin-top:24px;border-top:2px solid currentColor;padding-top:18px}
.next h4{font-size:17px;font-weight:900;margin-bottom:8px}
.next ol{margin-left:1.2em}
.next li{margin-top:6px}
@media print{.nav,.drawer,.foot,.skip,.actions,.acc-tools,.no-print{display:none!important}.sec{padding:24px 0}.sec.dark{background:#fff;color:#000}.sec.dark .muted{color:#333}.hero{padding-top:24px}body{font-size:12pt}}

/* 手机刘海和底部手势条的安全区 */
.nav{padding-top:env(safe-area-inset-top,0px);height:calc(var(--nav) + env(safe-area-inset-top,0px))}
.wp .article h3{font-size:21px;font-weight:900;margin:36px 0 6px}
.wp .article table{margin-top:16px}

/* ===== 品牌logo（使用设计好的logo，深色底用反白版） ===== */
.brand .logo{height:38px;width:auto;display:block}
.brand .logo-w{display:none}
html[data-nav="dark"] .nav .brand .logo-b{display:none}
html[data-nav="dark"] .nav .brand .logo-w{display:block}
.foot .brand .logo,.drawer .brand .logo{height:40px}
/* 首页主视觉：海报版logo */
.hero-split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,64px);align-items:center}
.hero-visual img{width:100%;height:auto;display:block}
@media (max-width:900px){.hero-split{grid-template-columns:1fr}.hero-visual{max-width:460px;margin:8px auto 0}}
/* 三步走 */
.steps.three li{grid-template-columns:72px 1fr}
.steps.three b{font-size:clamp(20px,2.2vw,26px)}
.steps.three .meta{display:block;margin-top:8px;font-size:15px;color:var(--gray);font-weight:700}
.sec.dark .steps.three .meta{color:var(--gray-on-black)}
.hero-split .h1{font-size:clamp(36px,4.9vw,74px)}
/* 海报主视觉的边缘柔化，和底色融为一体 */
.hero-visual img{-webkit-mask-image:radial-gradient(ellipse 72% 72% at 56% 50%,#000 64%,transparent 100%);mask-image:radial-gradient(ellipse 72% 72% at 56% 50%,#000 64%,transparent 100%)}