/* ===========================================================
   A16A · Google SEO 业务独立主题
   深色科技风 + 数据可视化
   =========================================================== */
:root{
  --s-bg:#07080a;
  --s-bg-2:#0e1014;
  --s-panel:rgba(255,255,255,.045);
  --s-panel-2:rgba(255,255,255,.075);
  --s-line:rgba(255,255,255,.07);
  --s-line-2:rgba(255,255,255,.14);
  --s-txt:#c9ced8;
  --s-dim:#8a93a2;
  --s-dim-2:#6e7681;
  --s-white:#fff;
  --g-1:#ff3b52;
  --g-2:#d0021b;
  --g-3:#a8000f;
  --g-4:#ff6b7d;
  --brand-red:#d0021b;
  --brand-red-dark:#a8000f;
  --brand-red-light:#fdecee;
  --glow-red:rgba(208,2,27,.45);
  --r-sm:6px; --r-md:10px; --r-lg:14px; --r-xl:14px;
  --wrap:1200px;
  --nav:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--s-bg);color:var(--s-txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s}
h1,h2,h3,h4{margin:0;color:var(--s-white);font-weight:700;line-height:1.32;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:inherit}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 clamp(16px,3vw,28px)}
.skip-link{position:absolute;left:-9999px;background:var(--brand-red);color:#fff;padding:10px 18px;z-index:9999;font-weight:600}
.skip-link:focus{left:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-sm);font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:all .22s;white-space:nowrap;
  border:1px solid transparent;
}
.btn-grad{
  background:var(--brand-red);
  color:#fff;
  box-shadow:0 1px 2px rgba(16,24,40,.06),0 6px 18px rgba(208,2,27,.24);
}
.btn-grad:hover{background:var(--brand-red-dark);transform:translateY(-1px);box-shadow:0 2px 4px rgba(16,24,40,.08),0 12px 28px rgba(208,2,27,.34)}
.btn-ghost{border-color:rgba(208,2,27,.42);color:#ff6b7d}
.btn-ghost:hover{background:rgba(208,2,27,.12);border-color:var(--brand-red);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-lg{padding:16px 38px;font-size:16px}
.btn-block{width:100%}

/* ---------- 顶栏 ---------- */
.sh{
  position:fixed;top:0;left:0;right:0;z-index:900;height:var(--nav);
  background:rgba(7,8,10,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:all .3s;
}
.sh.solid{background:rgba(7,8,10,.94);border-bottom-color:var(--s-line)}
.sh-in{height:var(--nav);display:flex;align-items:center;justify-content:space-between;gap:20px}
.sh-logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.sh-mark{
  font-size:15px;font-weight:800;color:#ffffff;letter-spacing:-.5px;
  background:linear-gradient(120deg,var(--g-1),var(--g-3));padding:6px 11px;border-radius:9px;
}
.sh-sep{width:1px;height:20px;background:var(--s-line-2)}
.sh-txt{font-size:14.5px;font-weight:600;color:var(--s-white);letter-spacing:-.01em}
.sh-nav{display:flex;gap:4px;flex:1;justify-content:center}
.sh-nav a{padding:9px 15px;border-radius:100px;font-size:14px;color:var(--s-txt);transition:all .22s}
.sh-nav a:hover{color:var(--s-white);background:var(--s-panel-2)}
.sh-act{display:flex;align-items:center;gap:10px;flex-shrink:0}
.sh-burger{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;gap:5px;padding:0 8px}
.sh-burger span{display:block;height:2px;background:var(--s-white);border-radius:2px;transition:all .3s}
.sh-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.sh-burger.open span:nth-child(2){opacity:0}
.sh-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 通用区块 ---------- */
.sec{padding:clamp(64px,8vw,116px) 0;position:relative}
.sec-head{max-width:780px;margin:0 auto clamp(40px,5vw,64px);text-align:center}
.tag{
  display:inline-block;padding:6px 17px;border-radius:100px;font-size:12.5px;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;
  color:#ffd8dd;background:rgba(208,2,27,.14);border:1px solid rgba(208,2,27,.3);margin-bottom:18px;
}
.sec-title{font-size:clamp(27px,3.6vw,43px);margin-bottom:16px}
.sec-sub{font-size:16px;color:var(--s-dim);line-height:1.85}
.grad-txt{
  background:linear-gradient(120deg,#fff 20%,#ffc9d0 60%,var(--brand-red) 105%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- HERO ---------- */
.hero{
  position:relative;padding:calc(var(--nav) + clamp(60px,9vw,120px)) 0 clamp(70px,9vw,130px);
  background:
    radial-gradient(1100px 580px at 82% -6%,rgba(168,0,15,.32) 0%,transparent 58%),
    radial-gradient(800px 520px at 12% 104%,rgba(208,2,27,.2) 0%,transparent 62%),
    linear-gradient(165deg,#07080a 0%,#081a3c 48%,#061431 100%);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.043) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.043) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 76% 60% at 50% 42%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 76% 60% at 50% 42%,#000 0%,transparent 78%);
}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,5vw,70px);align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:8px 17px;border-radius:100px;
  background:rgba(208,2,27,.14);border:1px solid rgba(208,2,27,.3);
  font-size:13px;font-weight:500;color:#ffd8dd;margin-bottom:26px;letter-spacing:.01em;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--g-1);display:block;
  box-shadow:0 0 0 0 rgba(208,2,27,.8);animation:pl 1.9s infinite}
@keyframes pl{70%{box-shadow:0 0 0 11px rgba(208,2,27,0)}100%{box-shadow:0 0 0 0 rgba(208,2,27,0)}}
.hero h1{font-size:clamp(31px,4.6vw,52px);line-height:1.15;margin-bottom:24px;letter-spacing:-.032em}
.hero-lead{font-size:clamp(15.5px,1.4vw,18px);color:var(--s-txt);line-height:1.85;max-width:600px;margin-bottom:36px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.hero-trust{display:flex;gap:26px;flex-wrap:wrap;padding-top:30px;border-top:1px solid var(--s-line);font-size:13.5px;color:var(--s-dim)}
.hero-trust span{display:flex;align-items:center;gap:8px}
.hero-trust b{color:#ff6b7d;font-size:15px}

/* Hero 数据卡 */
.rank-card{
  background:linear-gradient(165deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid var(--s-line-2);border-radius:var(--r-xl);
  padding:clamp(22px,2.8vw,32px);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:0 30px 72px rgba(0,0,0,.42);
}
.rc-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px}
.rc-title{font-size:14.5px;font-weight:700;color:var(--s-white)}
.rc-sub{font-size:12px;color:var(--s-dim-2);margin-top:3px}
.rc-live{
  display:flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;color:#ff6b7d;
  background:rgba(208,2,27,.14);padding:5px 12px;border-radius:100px;border:1px solid rgba(208,2,27,.3);
}
.rc-live i{width:6px;height:6px;border-radius:50%;background:var(--g-1);display:block;animation:pl 1.9s infinite}
.rc-rows{display:flex;flex-direction:column;gap:11px;margin-bottom:22px}
.rc-row{
  display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);transition:all .26s;
}
.rc-row:hover{background:rgba(255,255,255,.075);transform:translateX(4px);border-color:rgba(208,2,27,.3)}
.rc-pos{
  width:34px;height:34px;flex-shrink:0;border-radius:8px;display:grid;place-items:center;
  font-size:13px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand-red),#7a0011);
  box-shadow:0 4px 14px -6px rgba(208,2,27,.7);
}
.rc-pos.p2{background:linear-gradient(135deg,#e02b42,#a8000f);color:#fff}
.rc-pos.p3{background:linear-gradient(135deg,#c2182c,#6b000c);color:#fff}
.rc-kw{flex:1;min-width:0}
.rc-kw b{display:block;font-size:13.5px;color:var(--s-white);font-weight:500;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rc-kw small{font-size:11.5px;color:var(--s-dim-2)}
.rc-bar{width:74px;flex-shrink:0}
.rc-bar-t{height:5px;border-radius:3px;background:rgba(255,255,255,.1);overflow:hidden}
.rc-bar-f{height:100%;border-radius:3px;background:linear-gradient(90deg,#7a0011,var(--brand-red));
  width:0;transition:width 1.4s cubic-bezier(.4,0,.2,1)}
.rc-foot{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-top:20px;border-top:1px solid var(--s-line)}
.rc-f-item{text-align:center}
.rc-f-val{font-size:clamp(19px,2.2vw,25px);font-weight:800;color:var(--s-white);line-height:1.15;letter-spacing:-.03em}
.rc-f-lab{font-size:11.5px;color:var(--s-dim-2);margin-top:5px}

/* ---------- 数据统计带 ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:20px}
.stat{
  position:relative;overflow:hidden;
  padding:30px 24px;border-radius:var(--r-lg);text-align:center;
  background:var(--s-panel);border:1px solid var(--s-line);transition:all .3s;
}
/* 右上角 34x2px 红色渐隐条 —— saas 标志性装饰 */
.stat::after{
  content:'';position:absolute;top:0;right:0;width:34px;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand-red));
}
.stat:hover{background:var(--s-panel-2);border-color:rgba(208,2,27,.35);transform:translateY(-4px);box-shadow:0 12px 32px -12px rgba(208,2,27,.36)}
.stat-val{font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.1;letter-spacing:-.04em;
  background:linear-gradient(120deg,#fff 15%,#ffc9d0 55%,var(--brand-red) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-lab{font-size:13.5px;color:var(--s-dim);margin-top:10px}

/* ---------- 优势卡 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.adv{
  position:relative;padding:32px 28px;border-radius:var(--r-lg);
  background:var(--s-panel);border:1px solid var(--s-line);transition:all .32s;overflow:hidden;
}
.adv::after{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand-red),#7a0011);
  transform:scaleY(0);transform-origin:top;transition:transform .36s;
}
.adv:hover{background:var(--s-panel-2);transform:translateY(-5px);box-shadow:0 20px 48px rgba(0,0,0,.3)}
.adv:hover::after{transform:scaleY(1)}
.adv-ic{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:22px;
  background:linear-gradient(135deg,rgba(208,2,27,.2),rgba(168,0,15,.14));
  border:1px solid rgba(208,2,27,.28);
}
.adv-ic svg{width:24px;height:24px;stroke:#ff5c72;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.adv h3{font-size:18.5px;margin-bottom:11px}
.adv p{font-size:14px;color:var(--s-dim);line-height:1.8}

/* ---------- 流程时间轴 ---------- */
.steps{position:relative;max-width:900px;margin:0 auto}
.steps::before{
  content:'';position:absolute;left:27px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--brand-red),rgba(208,2,27,.24),transparent);
}
.step{position:relative;padding-left:78px;padding-bottom:44px}
.step:last-child{padding-bottom:0}
.step-n{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  font-size:17px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand-red),#7a0011);
  box-shadow:0 8px 26px -8px rgba(208,2,27,.72);z-index:2;
}
.step-b{
  padding:24px 26px;border-radius:var(--r-lg);
  background:var(--s-panel);border:1px solid var(--s-line);transition:all .3s;
}
.step-b:hover{background:var(--s-panel-2);border-color:rgba(208,2,27,.3);transform:translateX(6px)}
.step-b h4{font-size:17px;margin-bottom:9px}
.step-b p{font-size:14px;color:var(--s-dim);line-height:1.8}
.step-time{
  display:inline-block;margin-top:12px;font-size:12px;font-weight:600;color:#ff6b7d;
  background:rgba(208,2,27,.12);padding:4px 12px;border-radius:100px;border:1px solid rgba(208,2,27,.26);
}

/* ---------- 排名成果表 ---------- */
.result-table{
  width:100%;border-collapse:separate;border-spacing:0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--s-line);font-size:14px;
}
.result-table th{
  background:rgba(208,2,27,.1);color:#ffd8dd;font-weight:600;font-size:13.5px;
  padding:15px 18px;text-align:left;border-bottom:1px solid var(--s-line);
}
.result-table td{padding:15px 18px;border-bottom:1px solid rgba(255,255,255,.055);color:var(--s-txt)}
.result-table tr:last-child td{border-bottom:0}
.result-table tbody tr{transition:background .22s}
.result-table tbody tr:hover{background:rgba(208,2,27,.055)}
.pos-badge{
  display:inline-grid;place-items:center;min-width:38px;height:28px;padding:0 9px;
  border-radius:6px;font-size:13px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand-red),#7a0011);
}
.pos-badge.mid{background:linear-gradient(135deg,#e02b42,#a8000f);color:#fff}
.pos-badge.late{background:linear-gradient(135deg,#c2182c,#6b000c);color:#fff}
.up-txt{color:#ff5c72;font-weight:700;font-size:13.5px}
.result-note{font-size:13px;color:var(--s-dim-2);margin-top:18px;text-align:center;line-height:1.75}

/* ---------- 套餐 ---------- */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;align-items:start}
.plan{
  position:relative;padding:36px 30px;border-radius:var(--r-xl);
  background:var(--s-panel);border:1px solid var(--s-line);
  display:flex;flex-direction:column;transition:all .34s;
}
.plan:hover{transform:translateY(-6px);border-color:var(--s-line-2);box-shadow:0 26px 60px rgba(0,0,0,.36)}
.plan.hot{
  background:linear-gradient(170deg,rgba(208,2,27,.1),rgba(208,2,27,.035));
  border-color:rgba(208,2,27,.45);
  box-shadow:0 0 0 1px rgba(208,2,27,.25),0 10px 30px rgba(208,2,27,.18);
}
.plan-flag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  font-size:12px;font-weight:800;padding:6px 18px;border-radius:100px;
  background:var(--brand-red);color:#fff;white-space:nowrap;
  box-shadow:0 6px 20px rgba(208,2,27,.42);
}
.plan h3{font-size:20px;margin-bottom:8px}
.plan-sub{font-size:13.5px;color:var(--s-dim);line-height:1.7;margin-bottom:24px;min-height:46px}
.plan-price{
  font-size:15px;font-weight:700;color:#ff5c72;padding-bottom:22px;margin-bottom:24px;
  border-bottom:1px solid var(--s-line);
}
.plan-feats{display:flex;flex-direction:column;gap:13px;margin-bottom:30px;flex:1}
.plan-feats li{font-size:14px;color:var(--s-txt);padding-left:28px;position:relative;line-height:1.65}
.plan-feats li::before{
  content:'';position:absolute;left:0;top:6px;width:17px;height:17px;border-radius:50%;
  background:rgba(208,2,27,.16);
}
.plan-feats li::after{
  content:'';position:absolute;left:5.5px;top:10px;width:6px;height:9px;
  border:2px solid #ff5c72;border-top:0;border-left:0;transform:rotate(45deg);
}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:22px}
.case{
  padding:28px 26px;border-radius:var(--r-lg);background:var(--s-panel);
  border:1px solid var(--s-line);transition:all .3s;display:flex;flex-direction:column;
}
.case:hover{background:var(--s-panel-2);transform:translateY(-5px);border-color:rgba(208,2,27,.3)}
.case-ind{
  display:inline-block;font-size:12px;font-weight:600;color:#ff6b7d;margin-bottom:14px;
  background:rgba(208,2,27,.12);padding:4px 12px;border-radius:100px;align-self:flex-start;
  border:1px solid rgba(208,2,27,.26);
}
.case h3{font-size:17px;line-height:1.5;margin-bottom:12px}
.case p{font-size:13.5px;color:var(--s-dim);line-height:1.8;flex:1;margin-bottom:20px}
.case-mets{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding-top:18px;border-top:1px solid var(--s-line)}
.cm-v{font-size:18px;font-weight:800;color:#ff5c72;line-height:1.2;letter-spacing:-.02em}
.cm-l{font-size:11.5px;color:var(--s-dim-2);margin-top:4px}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--r-lg);background:var(--s-panel);border:1px solid var(--s-line);
  overflow:hidden;transition:all .28s;
}
.faq-item.open{background:var(--s-panel-2);border-color:rgba(208,2,27,.32)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;text-align:left;font-size:16px;font-weight:600;color:var(--s-white);
  transition:color .22s;
}
.faq-q:hover{color:#ff6b7d}
.faq-ico{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;display:grid;place-items:center;
  background:rgba(208,2,27,.14);position:relative;transition:all .3s;
}
.faq-ico::before,.faq-ico::after{
  content:'';position:absolute;background:#ff5c72;border-radius:2px;transition:all .3s;
}
.faq-ico::before{width:11px;height:2px}
.faq-ico::after{width:2px;height:11px}
.faq-item.open .faq-ico{background:var(--brand-red);transform:rotate(180deg)}
.faq-item.open .faq-ico::before{background:#ffffff}
.faq-item.open .faq-ico::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.4,0,.2,1)}
.faq-a-in{padding:0 26px 24px;font-size:14.5px;color:var(--s-dim);line-height:1.85}
.faq-a-in strong{color:var(--s-white)}

/* ---------- 咨询表单 ---------- */
.consult{
  border-radius:var(--r-xl);padding:clamp(32px,4.5vw,60px);
  background:linear-gradient(150deg,rgba(208,2,27,.1),rgba(208,2,27,.045) 55%,rgba(255,255,255,.02));
  border:1px solid rgba(208,2,27,.26);position:relative;overflow:hidden;
}
.consult::before{
  content:'';position:absolute;width:460px;height:460px;right:-140px;top:-190px;border-radius:50%;
  background:radial-gradient(circle,rgba(208,2,27,.24),transparent 68%);
}
.consult-in{position:relative;z-index:2;display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(30px,4vw,56px);align-items:start}
.consult-txt h2{font-size:clamp(24px,3vw,36px);margin-bottom:18px}
.consult-txt>p{font-size:15.5px;color:var(--s-txt);line-height:1.85;margin-bottom:30px}
.consult-pts{display:flex;flex-direction:column;gap:15px}
.consult-pt{display:flex;gap:13px;align-items:flex-start;font-size:14.5px;color:var(--s-txt)}
.consult-pt i{
  width:22px;height:22px;flex-shrink:0;border-radius:50%;display:grid;place-items:center;
  background:rgba(208,2,27,.16);margin-top:3px;
}
.consult-pt i::after{
  content:'';width:6px;height:10px;border:2px solid #ff5c72;border-top:0;border-left:0;transform:rotate(45deg);
}
.form-box{
  background:rgba(7,8,10,.7);border:1px solid var(--s-line-2);border-radius:var(--r-lg);
  padding:clamp(22px,2.6vw,32px);
}
.fg{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.fi{display:flex;flex-direction:column;gap:7px}
.fi.full{grid-column:1/-1}
.fl{font-size:13px;font-weight:600;color:var(--s-white)}
.fl .req{color:#ff5c72;margin-left:3px}
.fin,.fta,.fsel{
  width:100%;padding:12px 15px;border-radius:var(--r-md);font-size:14.5px;outline:none;
  background:rgba(255,255,255,.05);border:1px solid var(--s-line-2);color:var(--s-white);
  transition:all .22s;
}
.fin::placeholder,.fta::placeholder{color:var(--s-dim-2)}
.fin:focus,.fta:focus{border-color:var(--brand-red);background:rgba(255,255,255,.08);
  box-shadow:0 0 0 3px rgba(208,2,27,.18)}
.fta{min-height:100px;resize:vertical;line-height:1.7}
.cap-row{display:flex;gap:11px;align-items:flex-start}
.cap-row .fin{flex:1}
.cap-img{height:44px;width:118px;border-radius:var(--r-md);border:1px solid var(--s-line-2);
  cursor:pointer;object-fit:cover;background:#fff}
.fmsg{padding:13px 17px;border-radius:var(--r-md);font-size:14px;margin-bottom:18px;line-height:1.7}
.fmsg.ok{background:rgba(22,163,74,.13);color:#4ade80;border:1px solid rgba(22,163,74,.3)}
.fmsg.err{background:rgba(208,2,27,.14);color:#ff9ba0;border:1px solid rgba(208,2,27,.34)}
.form-note{font-size:12.5px;color:var(--s-dim-2);margin-top:14px;text-align:center;line-height:1.7}

/* ---------- 相关文章 ---------- */
.news-mini{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.nm{
  padding:24px;border-radius:var(--r-lg);background:var(--s-panel);border:1px solid var(--s-line);
  transition:all .3s;display:flex;flex-direction:column;
}
.nm:hover{background:var(--s-panel-2);transform:translateY(-4px);border-color:rgba(208,2,27,.28)}
.nm-date{font-size:12px;color:var(--s-dim-2);margin-bottom:10px}
.nm h4{font-size:16px;line-height:1.55;margin-bottom:10px;color:var(--s-white)}
.nm:hover h4{color:#ff6b7d}
.nm p{font-size:13.5px;color:var(--s-dim);line-height:1.75;flex:1}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:850;
  display:flex;align-items:center;gap:9px;
  padding:14px 24px;border-radius:var(--r-sm);font-size:14.5px;font-weight:700;color:#fff;
  background:var(--brand-red);
  box-shadow:0 8px 26px -8px rgba(208,2,27,.7);
  transform:translateY(120px);opacity:0;transition:all .4s cubic-bezier(.4,0,.2,1);
}
.float-cta.show{transform:translateY(0);opacity:1}
.float-cta:hover{transform:translateY(-3px);background:var(--brand-red-dark);box-shadow:0 14px 38px -8px rgba(208,2,27,.85)}
.fc-dot{width:8px;height:8px;border-radius:50%;background:#fff;animation:pl2 1.6s infinite}
@keyframes pl2{0%,100%{opacity:1}50%{opacity:.3}}

/* ---------- 页脚 ---------- */
.sf{background:#07080a;border-top:1px solid var(--s-line);padding:clamp(48px,6vw,74px) 0 0;margin-top:clamp(56px,7vw,100px)}
.sf-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:40px;
  border-bottom:1px solid var(--s-line)}
.sf-logo{font-size:19px;font-weight:800;color:var(--s-white);margin-bottom:14px;letter-spacing:-.02em}
.sf-desc{font-size:13.5px;color:var(--s-dim);line-height:1.8;margin-bottom:18px;max-width:320px}
.sf-meta{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--s-dim)}
.sf h4{font-size:14.5px;margin-bottom:18px;font-weight:600}
.sf ul{display:flex;flex-direction:column;gap:11px}
.sf ul a{font-size:13.5px;color:var(--s-dim)}
.sf ul a:hover{color:#ff6b7d}
.sf-cta-tip{font-size:13px;color:var(--s-dim);line-height:1.75;margin-bottom:16px}
.sf-bottom{padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--s-dim-2)}
.sf-bottom a:hover{color:#ff6b7d}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-in{grid-template-columns:1fr;gap:46px}
  .rank-card{max-width:560px}
  .consult-in{grid-template-columns:1fr;gap:38px}
  .sf-grid{grid-template-columns:1fr 1fr;gap:32px}
  .plans{grid-template-columns:1fr;max-width:520px;margin:0 auto}
}
@media (max-width:860px){
  :root{--nav:62px}
  .sh-nav{
    position:fixed;top:var(--nav);left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(7,8,10,.98);backdrop-filter:blur(20px);padding:14px 16px 20px;gap:2px;
    border-bottom:1px solid var(--s-line);transform:translateY(-140%);
    transition:transform .34s cubic-bezier(.4,0,.2,1);max-height:calc(100vh - var(--nav));overflow-y:auto;
  }
  .sh-nav.open{transform:translateY(0)}
  .sh-nav a{padding:14px 16px;font-size:15px;border-radius:var(--r-sm)}
  .sh-burger{display:flex}
  .sh-act .btn{display:none}
  .fg{grid-template-columns:1fr}
  .adv-grid,.case-grid,.news-mini{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .step{padding-left:66px}
  .step-n{width:48px;height:48px;font-size:15px}
  .steps::before{left:23px}
}
@media (max-width:560px){
  .sf-grid{grid-template-columns:1fr;gap:28px}
  .sf-bottom{flex-direction:column;text-align:center;align-items:center}
  .hero-btns{flex-direction:column}
  .hero-btns .btn{width:100%}
  .result-table{font-size:12.5px}
  .result-table th,.result-table td{padding:11px 12px}
  .float-cta{right:14px;bottom:16px;padding:12px 18px;font-size:13.5px}
  .rc-foot{grid-template-columns:repeat(3,1fr);gap:8px}
  .case-mets{grid-template-columns:repeat(3,1fr)}
}

/* ---------- 动效 ---------- */
/* 关键：仅在「JS 可用」时才把内容设为透明。若 JS 被禁用 / 加载失败 /
   爬虫抓取，内容保持完全可见，绝不会出现空白页。 */
.rv{opacity:1;transform:none}
.js .rv{opacity:0;transform:translateY(26px);
  transition:opacity .75s cubic-bezier(.4,0,.2,1),transform .75s cubic-bezier(.4,0,.2,1)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ============================================================
   品牌 Logo + 宣传海报
   ============================================================ */
/* ---------- 品牌 Logo（内嵌 SVG） ---------- */
.brand-logo{display:block;overflow:visible}
.brand-logo--lg{color:var(--s-txt);width:auto;height:56px;max-width:100%}
.brand-logo--sm{width:40px;height:40px;flex-shrink:0}

/* 顶栏 logo 容器：原先放 A16A 文字色块，现在放 SVG 图标 */
.sh-mark{
  display:flex;align-items:center;justify-content:center;
  background:none;padding:0;border-radius:0;
  width:40px;height:40px;flex-shrink:0;
}
.sh-mark .brand-logo--sm{border-radius:11px;box-shadow:0 6px 18px -6px rgba(0,0,0,.55)}

/* Hero 内的 logo 徽标 */
.hero-console-card{
  display:inline-flex;align-items:center;
  padding:14px 22px 14px 18px;margin-bottom:26px;
  border-radius:var(--r-lg);
  background:linear-gradient(140deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
  border:1px solid var(--s-line-2);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 18px 44px -20px rgba(0,0,0,.6),
             inset 0 1px 0 rgba(255,255,255,.07);
  position:relative;overflow:hidden;
}
/* 徽标左侧的品牌色光带 */
.hero-console-card::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand-red),#7a0011);
}

/* ---------- 宣传海报区 ---------- */
.poster-sec{
  position:relative;
  padding:clamp(40px,5.5vw,72px) 0 clamp(48px,6vw,84px);
  background:linear-gradient(180deg,var(--s-bg) 0%,var(--s-bg-2) 100%);
  overflow:hidden;
}
/* 背景网格，与 Hero 呼应 */
.poster-sec::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.043) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.043) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 50%,#000 0%,transparent 80%);
  mask-image:radial-gradient(ellipse 80% 70% at 50% 50%,#000 0%,transparent 80%);
  pointer-events:none;
}
.poster-card{
  position:relative;z-index:2;
  border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--s-line-2);
  background:var(--s-bg-2);
  box-shadow:0 40px 96px -36px rgba(0,0,0,.78),
             0 0 0 1px rgba(255,255,255,.03) inset,
             0 0 80px -40px rgba(var(--g-1-rgb),.5);
}
/* 顶部品牌色高光线 */
.poster-card::before{
  content:'';position:absolute;top:0;left:6%;right:6%;height:1px;z-index:3;
  background:linear-gradient(90deg,transparent,rgba(var(--g-1-rgb),.9),
             rgba(var(--g-3-rgb),.7),transparent);
}
.poster-card img{
  width:100%;height:auto;display:block;
  aspect-ratio:1600/1034;object-fit:cover;
  transition:transform .8s cubic-bezier(.4,0,.2,1);
}
.poster-card:hover img{transform:scale(1.018)}

/* 海报下方说明条 */
.poster-cap{
  position:relative;z-index:3;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  padding:18px clamp(18px,2.6vw,30px);
  background:linear-gradient(180deg,rgba(var(--s-bg-rgb),.62),rgba(var(--s-bg-rgb),.9));
  border-top:1px solid var(--s-line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.poster-tag{
  flex-shrink:0;
  font-size:13px;font-weight:700;letter-spacing:.01em;
  color:var(--g-1);
  padding:6px 14px;border-radius:100px;
  background:rgba(var(--g-1-rgb),.11);
  border:1px solid rgba(var(--g-1-rgb),.24);
}
.poster-sub{
  font-size:14px;color:var(--s-dim);line-height:1.7;flex:1;min-width:200px;
}

/* 响应式 */
@media (max-width:820px){
  .sh-mark{width:36px;height:36px}
  .brand-logo--sm{width:36px;height:36px}
  .brand-logo--lg{height:48px}
  .hero-console-card{padding:12px 18px;margin-bottom:22px}
  .poster-cap{padding:15px 18px;gap:12px}
  .poster-sub{font-size:13.5px}
}
@media (max-width:560px){
  .poster-sec{padding:30px 0 40px}
  .poster-card{border-radius:var(--r-lg)}
  .poster-tag{font-size:12px;padding:5px 12px}
  .poster-sub{min-width:0;font-size:13px}
  .hero-console-card{padding:10px 15px;border-radius:var(--r-md)}
  .brand-logo--lg{height:42px}
}