/* ========== QAgent 官网 · 编辑杂志风 ========== */
:root{
  --paper:#F6F3EC;
  --paper-2:#EFEAE0;
  --ink:#16130E;
  --ink-2:#4A443A;
  --ink-3:#8A8172;
  --line:#D8D1C2;
  --accent:#E8890C;
  --accent-soft:#FCEBD3;
  --c-red:#FF5252;
  --c-green:#43C465;
  --c-blue:#2D9CDB;
  --dark:#171410;
  --dark-2:#221E17;
  --dark-line:#3A3428;
  --serif:"Noto Serif SC",serif;
  --sans:"Noto Sans SC",sans-serif;
  --mono:"IBM Plex Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
}
/* 纸面颗粒 */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}
::selection{background:var(--accent);color:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--mono);letter-spacing:.06em}
.container{max-width:1200px;margin:0 auto;padding:0 32px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--sans);font-weight:700;font-size:15px;
  padding:12px 26px;border:1.5px solid var(--ink);cursor:pointer;
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,background .25s,color .25s;
  background:transparent;color:var(--ink);
}
.btn-solid{background:var(--ink);color:var(--paper)}
.btn-solid:hover{background:var(--accent);border-color:var(--accent);transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--paper);transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--accent)}
.btn-ghost{border-color:transparent;font-weight:500}
.btn-ghost:hover{color:var(--accent)}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-block{width:100%}
.arrow{transition:transform .25s}
.btn-line:hover .arrow{transform:translateX(4px)}

/* ===== 导航 ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(246,243,236,.85);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;transition:border-color .3s;
}
.nav.scrolled{border-bottom-color:var(--line)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 32px;height:68px;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{height:36px;width:auto;display:block;transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.brand:hover .brand-logo{transform:rotate(-8deg) scale(1.06)}
.brand-name{font-family:var(--serif);font-weight:900;font-size:20px}
.brand-tag{font-size:11px;color:var(--ink-3);border:1px solid var(--line);padding:2px 8px;margin-left:2px}
.nav-links{display:flex;gap:28px;margin-left:auto}
.nav-links a{font-size:14px;font-weight:500;color:var(--ink-2);position:relative;padding:4px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .3s}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;gap:6px;align-items:center}
.nav-cta .btn{padding:9px 18px;font-size:14px}
.lang-switch{
  background:none;border:1.5px solid var(--ink);color:var(--ink);
  font-size:12px;font-weight:600;padding:6px 12px;cursor:pointer;
  transition:background .25s,color .25s,transform .25s;
}
.lang-switch:hover{background:var(--ink);color:var(--paper);transform:translate(-1px,-1px)}
.nav-burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:6px;margin-left:auto}
.nav-burger span{width:24px;height:2px;background:var(--ink);display:block}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:110px 0 60px;overflow:hidden}
.hero-grid-lines{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,var(--line) 1px,transparent 1px);
  background-size:calc(100%/6) 100%;opacity:.35;
  mask-image:linear-gradient(to bottom,black 60%,transparent);
}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center;position:relative}
.kicker{
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--ink-2);
  display:flex;align-items:center;gap:10px;margin-bottom:28px;
}
.kicker-dot{width:9px;height:9px;background:var(--accent);border-radius:2px;transform:rotate(45deg);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(232,137,12,.4)}50%{box-shadow:0 0 0 8px rgba(232,137,12,0)}}
.hero-title{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(40px,5.4vw,72px);line-height:1.22;letter-spacing:.01em;
}
.hero-title span{display:block}
.hero-title em{font-style:normal;color:var(--accent);position:relative}
.hero-sub{margin-top:28px;font-size:18px;color:var(--ink-2);line-height:1.9}
.hero-sub strong{color:var(--accent);font-weight:700}
.hero-actions{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-figure{
  border:1.5px solid var(--ink);background:#fff;padding:12px;
  box-shadow:10px 10px 0 var(--accent-soft);
  transform:rotate(1.2deg);transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .5s;
}
.hero-figure:hover{transform:rotate(0);box-shadow:14px 14px 0 var(--accent)}
.hero-figure img{width:100%;aspect-ratio:4/3.4;object-fit:cover}
.hero-caption{display:flex;justify-content:space-between;gap:12px;padding:12px 4px 2px;font-size:13px;color:var(--ink-2)}
.hero-caption .mono{color:var(--accent);font-size:11px}
.hero-diamonds{position:absolute;inset:0;pointer-events:none}
.hd{position:absolute;border-radius:7px;transform:rotate(45deg);box-shadow:0 10px 24px rgba(22,19,14,.18)}
.hd-red{width:34px;height:34px;background:var(--c-red);top:-30px;right:52px;animation:float 5s ease-in-out infinite}
.hd-green{width:22px;height:22px;background:var(--c-green);top:38%;left:-34px;animation:float 6s ease-in-out .8s infinite}
.hd-blue{width:44px;height:44px;background:var(--c-blue);bottom:-24px;right:-20px;animation:float 7s ease-in-out 1.5s infinite}
@keyframes float{0%,100%{transform:rotate(45deg) translateY(0)}50%{transform:rotate(45deg) translateY(-14px)}}

/* ===== 通用 Section ===== */
.section{padding:110px 0}
.sec-head{margin-bottom:64px}
.sec-index{font-size:12px;letter-spacing:.2em;color:var(--accent);margin-bottom:16px;display:flex;align-items:center;gap:12px}
.sec-index::after{content:"";width:48px;height:1px;background:var(--accent)}
.sec-title{font-family:var(--serif);font-weight:900;font-size:clamp(30px,3.6vw,46px);line-height:1.35}
.sec-sub{display:block;font-family:var(--sans);font-weight:400;font-size:17px;color:var(--ink-3);margin-top:14px;letter-spacing:0}
.sec-head.light .sec-sub{color:#9a927f}

/* ===== 三大价值 ===== */
.value-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value-card{
  background:#fff;border:1.5px solid var(--ink);padding:36px 30px;position:relative;
  transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s;
}
.value-card:hover{transform:translate(-4px,-4px);box-shadow:8px 8px 0 var(--ink)}
.value-num{
  position:absolute;top:-16px;left:24px;background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;padding:4px 12px;
}
.value-card h3{font-family:var(--serif);font-weight:900;font-size:24px;margin:14px 0 12px}
.value-desc{font-size:14.5px;color:var(--ink-2);margin-bottom:20px;padding-bottom:20px;border-bottom:1px dashed var(--line)}
.value-card ul{list-style:none}
.value-card li{font-size:14px;color:var(--ink-2);padding:6px 0 6px 20px;position:relative}
.value-card li::before{content:"";position:absolute;left:0;top:14px;width:8px;height:8px;background:var(--accent-soft);border:1.5px solid var(--accent)}
.value-foot{margin-top:20px;font-size:13px;font-weight:700;color:var(--accent)}

/* ===== 对比 ===== */
.compare{background:var(--paper-2)}
.compare-table{border:1.5px solid var(--ink);background:#fff}
.compare-row{display:grid;grid-template-columns:1fr 1.4fr 1.4fr;border-top:1px solid var(--line)}
.compare-row:first-child{border-top:none}
.compare-row>div{padding:18px 24px;font-size:14.5px}
.compare-row>div+div{border-left:1px solid var(--line)}
.compare-head{background:var(--ink);color:var(--paper);font-weight:700}
.compare-head .hl{color:#F9B95C}
.compare-row .bad{color:var(--ink-3)}
.compare-row .good{font-weight:700;position:relative;padding-left:38px}
.compare-row .good::before{content:"✓";position:absolute;left:20px;color:var(--accent);font-weight:900}
.scene-chips{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.chip{background:#fff;border:1px dashed var(--ink-3);padding:16px 20px;font-size:13.5px;color:var(--ink-2)}
.chip b{display:block;color:var(--accent);font-family:var(--serif);margin-bottom:4px}

/* ===== 产品架构（深色） ===== */
.product{background:var(--dark);color:var(--paper)}
.product .sec-title{color:var(--paper)}
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.product-panel{border:1.5px solid var(--dark-line);background:var(--dark-2);padding:40px 36px;transition:border-color .35s,transform .35s}
.product-panel:hover{border-color:var(--accent);transform:translateY(-4px)}
.panel-label{font-size:11px;letter-spacing:.2em;color:var(--accent);border:1px solid var(--accent);padding:4px 12px;display:inline-block;margin-bottom:20px}
.panel-top h3{font-family:var(--serif);font-weight:900;font-size:26px;margin-bottom:8px}
.panel-top p{color:#9a927f;font-size:14.5px;margin-bottom:28px}
.feature-list{list-style:none;counter-reset:f}
.feature-list li{
  counter-increment:f;padding:13px 0 13px 52px;position:relative;
  border-top:1px solid var(--dark-line);font-size:13.5px;color:#b5ad9c;
}
.feature-list li::before{
  content:counter(f,decimal-leading-zero);position:absolute;left:0;top:13px;
  font-family:var(--mono);font-size:12px;color:var(--accent);
}
.feature-list li b{display:block;color:var(--paper);font-size:15px;margin-bottom:2px}
.panel-foot{margin-top:26px;font-size:13px;font-weight:700;color:var(--accent);border-top:1px dashed var(--dark-line);padding-top:18px}

/* ===== 部署 ===== */
.deploy-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.deploy-card{
  border:1.5px solid var(--ink);background:#fff;padding:44px 40px;
  transition:transform .35s,box-shadow .35s;
}
.deploy-card:hover{transform:translate(-4px,-4px);box-shadow:8px 8px 0 var(--ink)}
.deploy-card.dark{background:var(--dark);color:var(--paper);border-color:var(--dark)}
.deploy-card.dark:hover{box-shadow:8px 8px 0 var(--accent)}
.deploy-tag{font-size:11px;letter-spacing:.18em;color:var(--accent);margin-bottom:18px}
.deploy-card h3{font-family:var(--serif);font-weight:900;font-size:28px;margin-bottom:6px}
.deploy-fit{font-size:14px;color:var(--ink-3);margin-bottom:24px;padding-bottom:24px;border-bottom:1px dashed var(--line)}
.deploy-card.dark .deploy-fit{color:#9a927f;border-color:var(--dark-line)}
.deploy-card ul{list-style:none;margin-bottom:32px}
.deploy-card li{padding:8px 0 8px 24px;position:relative;font-size:14.5px;color:var(--ink-2)}
.deploy-card.dark li{color:#b5ad9c}
.deploy-card li::before{content:"—";position:absolute;left:0;color:var(--accent)}
.deploy-note{
  margin-top:32px;border:1.5px dashed var(--ink-3);padding:18px 24px;font-size:14px;color:var(--ink-2);
}
.deploy-note .mono{color:var(--accent);font-size:11px;letter-spacing:.15em;margin-right:12px}

/* ===== 价格 ===== */
.pricing{background:var(--paper-2)}
.price-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.price-card{
  background:#fff;border:1.5px solid var(--ink);padding:34px 28px;position:relative;
  display:flex;flex-direction:column;transition:transform .35s,box-shadow .35s;
}
.price-card:hover{transform:translateY(-6px);box-shadow:0 12px 0 -6px var(--accent-soft)}
.price-card.hot{border-color:var(--accent);border-width:2px}
.price-card.dark{background:var(--dark);color:var(--paper);border-color:var(--dark)}
.hot-tag{
  position:absolute;top:-13px;right:16px;background:var(--accent);color:#fff;
  font-size:11px;padding:4px 12px;letter-spacing:.1em;
}
.price-card h3{font-family:var(--serif);font-weight:900;font-size:22px}
.price-fit{font-size:13px;color:var(--ink-3);margin:4px 0 22px}
.price-card.dark .price-fit{color:#9a927f}
.price-num{font-family:var(--serif);font-weight:900;font-size:38px;line-height:1;display:flex;align-items:baseline;gap:2px;flex-wrap:wrap}
.price-num .yen{font-size:20px;color:var(--accent)}
.price-num .per{font-family:var(--sans);font-weight:400;font-size:12px;color:var(--ink-3);margin-left:6px}
.price-num.text{font-size:30px}
.price-deal{font-size:13px;color:var(--ink-2);margin:14px 0 26px;flex:1}
.price-card.dark .price-deal{color:#b5ad9c}
.price-deal b{color:var(--accent)}
.price-extras{margin-top:40px;border-top:1.5px solid var(--ink);padding-top:28px}
.extras-label{font-size:11px;letter-spacing:.18em;color:var(--ink-3);margin-bottom:16px}
.extras-items{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.extras-items div{font-size:13.5px;color:var(--ink-2)}
.extras-items b{display:block;font-family:var(--serif);font-size:16px;color:var(--ink);margin-bottom:4px}

/* ===== 应用场景（深色） ===== */
.cases{background:var(--dark);color:var(--paper)}
.cases .sec-title{color:var(--paper)}
.case-list{border-top:1px solid var(--dark-line)}
.case-row{
  display:grid;grid-template-columns:220px 1fr 220px;gap:32px;align-items:center;
  padding:32px 8px;border-bottom:1px solid var(--dark-line);
  transition:background .3s,padding-left .3s;
}
.case-row:hover{background:var(--dark-2);padding-left:24px}
.case-dept .mono{font-size:11px;letter-spacing:.2em;color:var(--accent)}
.case-dept h3{font-family:var(--serif);font-weight:900;font-size:24px;margin-top:4px}
.case-pain{font-size:13.5px;color:#9a927f}
.case-do{font-size:14px;color:var(--paper);margin-top:6px}
.case-do::before{content:"→ ";color:var(--accent)}
.case-result{text-align:right}
.case-result b{font-family:var(--serif);font-weight:900;font-size:34px;color:var(--accent);display:block;line-height:1.1}
.case-result span{font-size:12px;color:#9a927f}
.adopt-steps{margin-top:48px}
.adopt-steps .extras-label{color:#9a927f}
.steps{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.steps div:not(.step-arrow){
  border:1.5px solid var(--dark-line);padding:14px 22px;font-size:14.5px;font-weight:500;
  display:flex;align-items:center;gap:10px;transition:border-color .3s;
}
.steps div:not(.step-arrow):hover{border-color:var(--accent)}
.steps i{font-style:normal;color:var(--accent)}
.step-arrow{color:var(--accent);font-size:20px}

/* ===== 为什么选择 ===== */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1.5px solid var(--ink);background:#fff}
.why-item{
  padding:32px 28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  transition:background .3s;
}
.why-item:nth-child(3n){border-right:none}
.why-item:nth-child(n+4){border-bottom:none}
.why-item:hover{background:var(--accent-soft)}
.why-item .mono{font-size:12px;color:var(--accent);letter-spacing:.15em}
.why-item h4{font-family:var(--serif);font-weight:900;font-size:20px;margin:10px 0 6px}
.why-item p{font-size:13.5px;color:var(--ink-2)}

/* ===== CTA ===== */
.contact{background:var(--paper-2);border-top:1.5px solid var(--ink)}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.contact-title{font-family:var(--serif);font-weight:900;font-size:clamp(32px,4vw,50px);line-height:1.3;margin:16px 0 20px}
.contact-title em{font-style:normal;color:var(--accent)}
.contact-sub{color:var(--ink-2);margin-bottom:32px}
.contact-list{list-style:none}
.contact-list li{padding:16px 0 16px 28px;border-left:2px solid var(--accent);margin-bottom:8px;font-size:13.5px;color:var(--ink-2)}
.contact-list b{display:block;font-size:16px;color:var(--ink);font-family:var(--serif)}
.contact-channels{display:flex;flex-direction:column;gap:20px}
.channel-card{
  background:#fff;border:1.5px solid var(--ink);padding:30px 32px;
  box-shadow:8px 8px 0 var(--accent-soft);
  transition:transform .3s cubic-bezier(.2,.8,.2,1),box-shadow .3s;
}
.channel-card:hover{transform:translate(-3px,-3px);box-shadow:12px 12px 0 var(--accent)}
.channel-label{font-size:11px;letter-spacing:.18em;color:var(--accent)}
.channel-desc{font-size:13.5px;color:var(--ink-3);margin:8px 0 18px}
.channel-value{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.channel-value b{font-family:var(--mono);font-size:clamp(20px,2.2vw,28px);font-weight:600;letter-spacing:.02em}
.btn-sm{padding:8px 18px;font-size:13px}
.channel-tip{font-size:13px;color:var(--ink-3);margin-top:8px}
.channel-tip.ok{color:var(--accent);font-weight:700}

/* ===== Footer ===== */
.footer{background:var(--dark);color:var(--paper);padding:56px 0}
.footer-inner{display:flex;align-items:center;gap:48px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand .brand-logo{height:40px}
.footer-brand b{font-family:var(--serif);font-size:18px}
.footer-brand p{font-size:12.5px;color:#9a927f}
.footer-links{display:flex;gap:24px;margin-left:auto}
.footer-links a{font-size:13px;color:#b5ad9c;transition:color .25s}
.footer-links a:hover{color:var(--accent)}
.footer-copy{width:100%;font-size:11px;color:#6e675a;letter-spacing:.12em;border-top:1px solid var(--dark-line);padding-top:24px;margin-top:8px}

/* ===== 滚动显现 ===== */
.reveal{opacity:0;transform:translateY(32px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.12s}
.reveal.d2{transition-delay:.24s}
.reveal.d3{transition-delay:.36s}
.reveal.d4{transition-delay:.3s}
.reveal.d5{transition-delay:.42s}
.reveal.d6{transition-delay:.54s}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:56px}
  .hero-visual{max-width:520px}
  .value-cards{grid-template-columns:1fr}
  .product-grid,.deploy-grid,.contact-inner{grid-template-columns:1fr}
  .price-cards{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .why-item:nth-child(3n){border-right:1px solid var(--line)}
  .why-item:nth-child(2n){border-right:none}
  .why-item:nth-child(n+4){border-bottom:1px solid var(--line)}
  .why-item:nth-child(n+5){border-bottom:none}
  .scene-chips,.extras-items{grid-template-columns:1fr}
  .case-row{grid-template-columns:1fr;gap:12px}
  .case-result{text-align:left}
}
@media(max-width:640px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex;margin-left:0}
  .lang-switch{margin-left:auto}
  .nav.open .nav-links{
    display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;
    background:var(--paper);border-bottom:1.5px solid var(--ink);padding:20px 32px;gap:16px;
  }
  .section{padding:72px 0}
  .container{padding:0 20px}
  .price-cards,.why-grid{grid-template-columns:1fr}
  .why-item{border-right:none!important;border-bottom:1px solid var(--line)!important}
  .why-item:last-child{border-bottom:none!important}
  .compare-row{grid-template-columns:1fr}
  .compare-row>div+div{border-left:none;border-top:1px dashed var(--line)}
  .hero{padding-top:130px}
  .hero-diamonds{display:none}
}