:root{
  --ink:#0a0c0b;          /* 墨黑 */
  --ink2:#101512;         /* 墨黑·浅 */
  --paper:#f2ede2;        /* 宣纸白 */
  --sub:#9aa69e;          /* 灰青 */
  --jade:#3ddc97;         /* 青玉 */
  --jade-dim:rgba(61,220,151,.14);
  --cinnabar:#ff5a4e;     /* 朱砂印章 */
  --line:rgba(242,237,226,.12);
  --serif:"Songti SC","STSong","SimSun","Noto Serif CJK SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --mono:"Cascadia Code",Consolas,"Courier New",ui-monospace,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{background:var(--ink);color:var(--paper);font-family:var(--sans);line-height:1.75;overflow-x:hidden}
::selection{background:var(--jade);color:var(--ink)}
a{color:inherit;text-decoration:none}
.wrap{width:min(1180px,92%);margin:0 auto}
.mono{font-family:var(--mono)}

/* 颗粒噪点 */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:999;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='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");}

/* ===== 导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:rgba(10,12,11,.7);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.seal{width:38px;height:38px;background:var(--cinnabar);color:#fff;font-family:var(--serif);font-weight:900;display:grid;place-items:center;font-size:20px;border-radius:8px;transform:rotate(-4deg);box-shadow:0 4px 18px rgba(255,90,78,.3)}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:900;font-size:20px;letter-spacing:2px}
.brand small{font-family:var(--mono);font-size:11px;color:var(--sub);letter-spacing:1px;display:block;font-weight:400}
.nav-links{display:flex;gap:34px;font-size:14px;color:var(--sub)}
.nav-links a{position:relative;transition:.25s}
.nav-links a:hover{color:var(--jade)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--jade);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--jade)}
.nav-cta{font-family:var(--mono);font-size:13px;padding:10px 22px;border:1px solid var(--jade);color:var(--jade);border-radius:99px;transition:.3s}
.nav-cta:hover{background:var(--jade);color:var(--ink)}
.burger{display:none;background:none;border:none;color:var(--paper);font-family:var(--mono);font-size:14px;letter-spacing:2px;cursor:pointer}

/* ===== 首屏 ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:140px 0 60px;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:
  linear-gradient(var(--line) 1px,transparent 1px),
  linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:72px 72px;opacity:.25;mask-image:radial-gradient(700px at 30% 40%,#000,transparent);pointer-events:none}
.watermark{position:absolute;right:-6%;top:50%;transform:translateY(-50%);font-family:var(--serif);font-weight:900;font-size:46vw;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(242,237,226,.07);user-select:none;pointer-events:none;z-index:0}
.vtext{position:absolute;right:4%;top:50%;transform:translateY(-50%);writing-mode:vertical-rl;font-family:var(--serif);letter-spacing:14px;color:var(--sub);font-size:15px;border-left:1px solid var(--line);padding-left:20px;z-index:2}
.hero-grid{position:relative;z-index:3;display:grid;grid-template-columns:1fr;max-width:820px}
.eyebrow{font-family:var(--mono);font-size:13px;color:var(--jade);letter-spacing:3px;display:flex;align-items:center;gap:10px;margin-bottom:26px}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--jade);box-shadow:0 0 0 4px var(--jade-dim);animation:pulse 1.8s infinite}
@keyframes pulse{50%{opacity:.4}}
h1{font-family:var(--serif);font-weight:900;font-size:clamp(44px,7.5vw,92px);line-height:1.15;letter-spacing:2px}
h1 .jade{color:var(--jade)}
h1 .stamp{display:inline-block;width:.5em;height:.5em;background:var(--cinnabar);margin-left:.15em;transform:rotate(6deg) translateY(-.05em)}
.hero p.lead{margin:30px 0 40px;color:var(--sub);font-size:18px;max-width:600px}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 34px;border-radius:99px;font-size:16px;font-weight:700;transition:.3s;cursor:pointer;border:none;font-family:var(--sans)}
.btn-primary{background:var(--jade);color:var(--ink);box-shadow:0 10px 30px rgba(61,220,151,.25)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(61,220,151,.4)}
.btn-ghost{border:1px solid var(--line);color:var(--paper);background:transparent}
.btn-ghost:hover{border-color:var(--jade);color:var(--jade);transform:translateY(-3px)}
.trust{margin-top:44px;font-family:var(--mono);font-size:13px;color:var(--sub);display:flex;gap:26px;flex-wrap:wrap}
.trust b{color:var(--paper)}

/* ===== 跑马灯 ===== */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;overflow:hidden;white-space:nowrap;background:var(--ink2)}
.mq-track{display:inline-flex;gap:0;animation:mq 30s linear infinite}
.mq-track span{font-family:var(--serif);font-size:20px;letter-spacing:4px;padding:0 30px;color:var(--sub)}
.mq-track span i{color:var(--jade);font-style:normal;margin-right:30px}
@keyframes mq{to{transform:translateX(-50%)}}

/* ===== 通用区块 ===== */
section{padding:110px 0}
.sec-head{margin-bottom:64px;max-width:680px}
.sec-head .en{font-family:var(--mono);color:var(--jade);font-size:13px;letter-spacing:4px;text-transform:uppercase}
.sec-head h2{font-family:var(--serif);font-weight:900;font-size:clamp(30px,4.5vw,50px);margin:14px 0 16px;letter-spacing:1px}
.sec-head p{color:var(--sub)}

/* ===== Bento 服务 ===== */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cell{border:1px solid var(--line);border-radius:22px;padding:32px;background:var(--ink2);position:relative;overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.cell:hover{border-color:rgba(61,220,151,.5);transform:translateY(-5px);background:#121814}
.cell .no{font-family:var(--mono);font-size:13px;color:var(--jade);letter-spacing:2px}
.cell h3{font-family:var(--serif);font-size:24px;margin:14px 0 12px;font-weight:700}
.cell p{color:var(--sub);font-size:14.5px;flex:1}
.cell .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chip{font-family:var(--mono);font-size:12px;padding:5px 13px;border:1px solid var(--line);border-radius:99px;color:var(--sub);transition:.3s}
.cell:hover .chip{border-color:rgba(61,220,151,.4);color:var(--jade)}
.cell .arrow{position:absolute;top:30px;right:30px;color:var(--sub);transition:.3s;font-size:20px}
.cell:hover .arrow{color:var(--jade);transform:translate(4px,-4px)}
.c-a{grid-column:span 2;grid-row:span 2;justify-content:flex-end;min-height:340px}
.c-a h3{font-size:34px}
.c-b{grid-column:span 2}
.c-c,.c-d,.c-e,.c-f{grid-column:span 1}

/* ===== 流程 ===== */
.flow{background:var(--ink2)}
.step{display:grid;grid-template-columns:140px 1fr auto;gap:30px;align-items:baseline;padding:34px 0;border-top:1px solid var(--line);transition:.35s}
.step:last-child{border-bottom:1px solid var(--line)}
.step:hover{padding-left:20px}
.step .num{font-family:var(--serif);font-size:52px;font-weight:900;color:transparent;-webkit-text-stroke:1.5px var(--jade);line-height:1;transition:.35s}
.step:hover .num{color:var(--jade);-webkit-text-stroke:0}
.step h4{font-family:var(--serif);font-size:24px;font-weight:700}
.step p{color:var(--sub);font-size:15px;max-width:520px}
.step .tag{font-family:var(--mono);font-size:12px;color:var(--sub);border:1px solid var(--line);padding:6px 14px;border-radius:99px;white-space:nowrap}

/* ===== 案例列表 ===== */
.case{display:grid;grid-template-columns:100px 1fr auto auto;gap:26px;align-items:center;padding:30px 0;border-top:1px solid var(--line);transition:.35s;cursor:pointer}
.case:last-child{border-bottom:1px solid var(--line)}
.case:hover{padding-left:18px;background:linear-gradient(90deg,var(--jade-dim),transparent)}
.case .idx{font-family:var(--mono);font-size:15px;color:var(--sub)}
.case h3{font-family:var(--serif);font-size:24px;font-weight:700;transition:.3s}
.case:hover h3{color:var(--jade)}
.case .cat{font-family:var(--mono);font-size:12px;color:var(--jade);border:1px solid rgba(61,220,151,.35);padding:5px 14px;border-radius:99px}
.case .meta{font-family:var(--mono);font-size:13px;color:var(--sub)}

/* ===== 价格 ===== */
.pricing{background:var(--ink2)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plan{border:1px solid var(--line);border-radius:22px;padding:38px 32px;background:var(--ink);position:relative;transition:.35s}
.plan:hover{transform:translateY(-6px)}
.plan.hot{border-color:var(--jade);background:linear-gradient(180deg,rgba(61,220,151,.08),transparent)}
.plans:hover .plan{border-color:var(--line);background:var(--ink)}
.plans:hover .plan:hover{border-color:var(--jade);background:linear-gradient(180deg,rgba(61,220,151,.08),transparent)}
.plan .badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--jade);color:var(--ink);font-size:12px;font-weight:700;padding:5px 16px;border-radius:99px;white-space:nowrap}
.plan h3{font-family:var(--serif);font-size:22px;font-weight:700}
.plan .price{font-family:var(--serif);font-size:42px;font-weight:900;margin:18px 0 4px}
.plan .price small{font-size:16px;color:var(--sub);font-weight:400}
.plan .per{font-family:var(--mono);font-size:13px;color:var(--sub);margin-bottom:22px}
.plan ul{list-style:none;margin-bottom:28px}
.plan li{padding:9px 0;color:var(--sub);font-size:14.5px;display:flex;gap:10px;align-items:flex-start}
.plan li::before{content:"—";color:var(--jade)}
.plan .btn{width:100%;justify-content:center;padding:14px}

/* ===== 评价 ===== */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{border:1px solid var(--line);border-radius:20px;padding:34px 30px;background:var(--ink2);position:relative;transition:.35s}
.quote:nth-child(2){transform:rotate(1deg)}
.quote:nth-child(3){transform:rotate(-1deg)}
.quote:hover{transform:rotate(0) translateY(-6px);border-color:rgba(61,220,151,.4)}
.quote .mark{font-family:var(--serif);font-size:60px;color:var(--jade);line-height:1;opacity:.5}
.quote p{font-size:15px;margin:10px 0 22px;color:var(--paper)}
.quote .who{font-family:var(--mono);font-size:13px;color:var(--sub)}
.quote .who b{color:var(--jade)}

/* ===== FAQ ===== */
.faq{max-width:760px;margin:0 auto}
.qa{border:1px solid var(--line);border-radius:16px;margin-bottom:14px;background:var(--ink2);overflow:hidden}
.qa button{width:100%;text-align:left;background:none;border:none;color:var(--paper);font-family:var(--sans);font-size:17px;font-weight:700;padding:22px 26px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.qa .plus{color:var(--jade);font-size:22px;font-weight:400;transition:.3s;font-family:var(--mono)}
.qa.open .plus{transform:rotate(45deg)}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .35s ease}
.qa .ans p{padding:0 26px 24px;color:var(--sub);font-size:15px}

/* ===== CTA ===== */
.cta{text-align:center}
.cta h2{font-family:var(--serif);font-weight:900;font-size:clamp(34px,6vw,72px);line-height:1.2;margin-bottom:20px}
.cta h2 .jade{color:var(--jade)}
.cta p{color:var(--sub);margin-bottom:40px;font-size:17px}
.contact-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:44px}
.contact-item{font-family:var(--mono);font-size:14px;padding:13px 26px;border:1px solid var(--line);border-radius:99px;color:var(--sub);transition:.3s}
.contact-item b{color:var(--jade)}
.contact-item:hover{border-color:var(--jade);transform:translateY(-3px)}

/* ===== 页脚 ===== */
footer{border-top:1px solid var(--line);padding:60px 0 40px;text-align:center;position:relative;overflow:hidden}
.bigtype{font-family:var(--serif);font-weight:900;font-size:clamp(80px,18vw,240px);line-height:1;color:transparent;-webkit-text-stroke:1px rgba(242,237,226,.1);letter-spacing:.1em;margin-bottom:30px;user-select:none}
footer .meta{font-family:var(--mono);font-size:13px;color:var(--sub)}
footer .meta a{color:var(--jade)}

#toTop{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;background:var(--ink2);border:1px solid var(--jade);color:var(--jade);font-family:var(--mono);font-size:13px;letter-spacing:1px;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;z-index:60}
#toTop.show{opacity:1;pointer-events:auto}
#toTop:hover{background:var(--jade);color:var(--ink)}

.reveal{opacity:0;transform:translateY(36px);transition:.8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

@media(max-width:960px){
  .bento{grid-template-columns:repeat(2,1fr)}
  .c-a,.c-b{grid-column:span 2}
  .c-c,.c-d,.c-e,.c-f{grid-column:span 1}
  .plans,.quotes{grid-template-columns:1fr}
  .quote:nth-child(2),.quote:nth-child(3){transform:none}
  .step{grid-template-columns:70px 1fr}
  .step .tag{display:none}
  .step .num{font-size:38px}
  .case{grid-template-columns:50px 1fr}
  .case .cat,.case .meta{display:none}
  .vtext{display:none}
  .watermark{font-size:90vw;opacity:.6}
}
@media(max-width:640px){
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:rgba(10,12,11,.97);padding:24px 6%;gap:20px;border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .burger{display:block}
  .nav-cta{display:none}
  .bento{grid-template-columns:1fr}
  .c-a,.c-b,.c-c,.c-d,.c-e,.c-f{grid-column:span 1}
  section{padding:80px 0}
}

/* ===== 需求表单 ===== */
.contact-form{max-width:640px;margin:0 auto;text-align:left;background:var(--ink2);border:1px solid var(--line);border-radius:22px;padding:34px 32px;display:flex;flex-direction:column;gap:16px}
.contact-form label{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--sub);font-family:var(--mono);letter-spacing:1px}
.contact-form input,.contact-form textarea{background:var(--ink);border:1px solid var(--line);border-radius:12px;color:var(--paper);padding:12px 16px;font-family:var(--sans);font-size:15px;outline:none;transition:.25s;resize:vertical}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--jade);box-shadow:0 0 0 3px var(--jade-dim)}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(154,166,158,.45)}
.cf-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cf-honey{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.contact-form .btn{align-self:flex-start;padding:13px 32px}
.cf-msg{font-size:14px;min-height:1.4em;margin:2px 0 0;font-family:var(--sans);color:var(--sub)}
.cf-msg.ok{color:var(--jade)}
.cf-msg.err{color:var(--cinnabar)}
.cf-alt{margin:44px 0 0;color:var(--sub);font-size:13px;font-family:var(--mono);letter-spacing:2px}
@media(max-width:640px){
  .cf-grid{grid-template-columns:1fr}
  .contact-form{padding:26px 20px}
  .contact-form .btn{width:100%;justify-content:center}
}

/* ===== 需求二次确认弹窗 ===== */
.confirm-mask{
  --jade-deep:#0e8f66;
  position:fixed;inset:0;z-index:1000;display:none;align-items:center;justify-content:center;padding:20px;
  background:rgba(7,9,8,.74);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.confirm-mask.open{display:flex;animation:maskIn .25s ease}
@keyframes maskIn{from{opacity:0}to{opacity:1}}
.confirm-card{
  width:min(600px,100%);max-height:calc(100vh - 40px);display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(248,244,235,.93),rgba(233,225,209,.88));
  backdrop-filter:blur(24px) saturate(1.15);-webkit-backdrop-filter:blur(24px) saturate(1.15);
  border:1px solid rgba(255,255,255,.32);
  color:var(--ink);border-radius:26px;
  box-shadow:0 30px 80px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.4);
  overflow:hidden;
  animation:cardIn .38s cubic-bezier(.2,.7,.2,1);
}
@keyframes cardIn{from{opacity:0;transform:translateY(28px) scale(.96)}to{opacity:1;transform:none}}
.confirm-head{display:flex;align-items:center;gap:16px;padding:26px 30px 20px;border-bottom:1px solid rgba(10,12,11,.12)}
.confirm-seal{
  width:46px;height:46px;flex:none;background:var(--cinnabar);color:#fff;font-family:var(--serif);
  font-weight:900;font-size:18px;display:grid;place-items:center;border-radius:10px;transform:rotate(-4deg);
  box-shadow:0 6px 18px rgba(255,90,78,.35);
}
.confirm-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:3px;color:var(--jade-deep);text-transform:uppercase}
.confirm-head h3{font-family:var(--serif);font-size:24px;font-weight:900;letter-spacing:2px;line-height:1.3}
.confirm-close{
  margin-left:auto;width:38px;height:38px;flex:none;border-radius:50%;border:1px solid rgba(10,12,11,.16);
  background:transparent;color:var(--ink);font-size:20px;line-height:1;cursor:pointer;transition:.25s;
}
.confirm-close:hover{border-color:var(--cinnabar);color:var(--cinnabar);transform:rotate(90deg)}
.confirm-desc{padding:16px 30px 0;font-size:14px;color:rgba(10,12,11,.62)}
.confirm-body{overflow-y:auto;padding:20px 30px 6px;display:flex;flex-direction:column;gap:12px}
.confirm-row{
  display:grid;grid-template-columns:104px 1fr;gap:18px;align-items:baseline;
  background:rgba(10,12,11,.06);border:1px solid rgba(10,12,11,.1);border-radius:14px;padding:13px 18px;
}
.confirm-row .cfk{font-family:var(--mono);font-size:12px;color:rgba(10,12,11,.5);letter-spacing:1px}
.confirm-row .cfv{font-size:15px;font-weight:600;color:var(--ink);word-break:break-word;white-space:pre-wrap}
.cfv-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.confirm-note{padding:12px 30px 0;font-size:13px;color:rgba(10,12,11,.55);text-align:center}
.confirm-note.err{color:#c22f27;font-weight:600}
.confirm-actions{display:flex;align-items:center;justify-content:flex-end;gap:14px;padding:20px 30px 28px}
.confirm-actions .btn{padding:13px 30px;border-radius:99px;font-size:15px}
.confirm-ghost{border:1px solid rgba(10,12,11,.25);color:var(--ink);background:transparent}
.confirm-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.confirm-ok{background:var(--jade);color:var(--ink);box-shadow:0 10px 26px rgba(61,220,151,.35)}
.confirm-ok:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(61,220,151,.5)}
.confirm-ok:disabled{opacity:.65;cursor:not-allowed;transform:none;box-shadow:none}
.confirm-card button:focus-visible{outline:2px solid var(--jade-deep);outline-offset:2px}

/* ===== 确认按钮 · 方案 A：朱砂印章 ===== */
.confirm-ok.seal-ok{
  font-family:var(--serif);font-weight:900;font-size:19px;line-height:1.35;letter-spacing:7px;
  writing-mode:vertical-rl;padding:22px 16px;border-radius:14px;
  color:#fff;background:linear-gradient(150deg,#ff6d61,#e8412f 58%,#c93122);
  border:1px solid rgba(0,0,0,.25);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),inset 0 -2px 0 rgba(0,0,0,.2),0 14px 32px rgba(255,90,78,.4);
  transition:.3s cubic-bezier(.2,.7,.2,1);
}
.confirm-ok.seal-ok:hover{
  transform:translateY(-3px) rotate(-2deg);filter:brightness(1.06);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),inset 0 -2px 0 rgba(0,0,0,.2),0 18px 42px rgba(255,90,78,.5);
}
.confirm-ok.seal-ok:active{transform:translateY(0) rotate(0)}

/* ===== 确认按钮 · 方案 B：青玉流光 ===== */
.confirm-ok.jade-ok{
  position:relative;overflow:hidden;letter-spacing:1px;font-weight:800;
  background:linear-gradient(135deg,#4ce4a8,#24a870);
  color:var(--ink);border:1px solid rgba(255,255,255,.4);
  box-shadow:0 14px 30px rgba(61,220,151,.32),inset 0 1px 0 rgba(255,255,255,.55),inset 0 -1px 0 rgba(0,0,0,.12);
}
.confirm-ok.jade-ok::before{
  content:"";position:absolute;top:-20%;bottom:-20%;left:-70%;width:42%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-18deg);transition:left .55s ease;
}
.confirm-ok.jade-ok:hover{
  transform:translateY(-3px);
  box-shadow:0 18px 38px rgba(61,220,151,.45),inset 0 1px 0 rgba(255,255,255,.6),inset 0 -1px 0 rgba(0,0,0,.12);
}
.confirm-ok.jade-ok:hover::before{left:130%}

/* ===== 确认按钮 · 方案 C：墨底青角 ===== */
.confirm-ok.ink-ok{
  position:relative;color:var(--paper);letter-spacing:3px;font-family:var(--serif);font-weight:900;
  background:linear-gradient(160deg,#161d19,#0a0c0b);
  border:1px solid rgba(10,12,11,.55);border-radius:14px;
  box-shadow:0 14px 30px rgba(0,0,0,.35),0 0 0 1px rgba(61,220,151,.45);
}
.confirm-ok.ink-ok::before,.confirm-ok.ink-ok::after{
  content:"";position:absolute;width:9px;height:9px;border:2px solid var(--jade);transition:.3s;
}
.confirm-ok.ink-ok::before{top:-2px;left:-2px;border-right:0;border-bottom:0}
.confirm-ok.ink-ok::after{bottom:-2px;right:-2px;border-left:0;border-top:0}
.confirm-ok.ink-ok:hover{
  transform:translateY(-3px);background:var(--jade);color:var(--ink);
  box-shadow:0 18px 38px rgba(61,220,151,.4);
}
.confirm-ok.ink-ok:hover::before,.confirm-ok.ink-ok:hover::after{width:16px;height:16px;border-color:var(--ink)}

@media(max-width:640px){
  .confirm-ok.seal-ok{writing-mode:horizontal-tb;letter-spacing:3px;font-size:16px;padding:13px 30px;border-radius:99px}
}
@media(max-width:640px){
  .confirm-card{border-radius:20px}
  .confirm-head,.confirm-desc,.confirm-note{padding-left:20px;padding-right:20px}
  .confirm-body{padding:16px 20px 4px}
  .confirm-actions{padding:16px 20px 22px}
  .cfv-grid{grid-template-columns:1fr}
  .confirm-row{grid-template-columns:1fr;gap:4px}
  .confirm-actions{flex-direction:column-reverse}
  .confirm-actions .btn{width:100%;justify-content:center}
}

/* ===== 表单快捷选项 ===== */
.cf-field{border:0;margin:0;padding:0;min-width:0;display:flex;flex-direction:column;gap:10px}
.cf-field legend{font-size:13px;color:var(--sub);font-family:var(--mono);letter-spacing:1px;padding:0}
.cf-opts{display:flex;flex-wrap:wrap;gap:8px}
.cf-opts input{position:absolute;opacity:0;pointer-events:none}
.cf-opts label{
  display:inline-flex;align-items:center;font-family:var(--mono);font-size:12.5px;letter-spacing:.5px;
  color:var(--sub);border:1px solid var(--line);border-radius:99px;padding:7px 15px;cursor:pointer;
  transition:.25s;user-select:none;white-space:nowrap;
}
.cf-opts label:hover{border-color:var(--jade);color:var(--jade)}
.cf-opts input:checked+label{
  background:var(--jade);border-color:var(--jade);color:var(--ink);font-weight:700;
  box-shadow:0 4px 14px rgba(61,220,151,.25);
}
.cf-opts input:focus-visible+label{outline:2px solid var(--jade);outline-offset:2px}
.cf-custom{margin-top:2px}
@media(max-width:640px){
  .cf-opts label{font-size:12px;padding:6px 13px}
}

/* ===== 方案 C 按钮体系：墨底青角（全站统一） ===== */
.btn,.nav-cta{
  position:relative;border-radius:12px;letter-spacing:1px;
  color:var(--paper);background:linear-gradient(160deg,#161d19,#0a0c0b);
  border:1px solid rgba(10,12,11,.55);
  box-shadow:0 10px 26px rgba(0,0,0,.28),0 0 0 1px rgba(61,220,151,.42);
}
.btn::before,.btn::after,.nav-cta::before,.nav-cta::after{
  content:"";position:absolute;width:9px;height:9px;border:2px solid var(--jade);
  transition:.3s;pointer-events:none;z-index:1;
}
.btn::before,.nav-cta::before{top:-2px;left:-2px;border-right:0;border-bottom:0}
.btn::after,.nav-cta::after{bottom:-2px;right:-2px;border-left:0;border-top:0}
.nav-cta{display:inline-flex;align-items:center;gap:8px}
.btn-ghost,.confirm-ghost{box-shadow:0 8px 20px rgba(0,0,0,.2),0 0 0 1px rgba(61,220,151,.22)}
.btn-ghost::before,.btn-ghost::after,.confirm-ghost::before,.confirm-ghost::after{border-color:rgba(61,220,151,.65)}
.confirm-actions .btn{border-radius:12px}
.btn:hover,.nav-cta:hover{
  transform:translateY(-3px);color:var(--ink);background:var(--jade);
  box-shadow:0 16px 36px rgba(61,220,151,.35),0 0 0 1px rgba(61,220,151,.5);
}
.btn:hover::before,.btn:hover::after,.nav-cta:hover::before,.nav-cta:hover::after{
  width:16px;height:16px;border-color:var(--ink);
}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.confirm-close{border-color:rgba(61,220,151,.55);color:var(--jade-deep);background:rgba(10,12,11,.05)}
.confirm-close:hover{background:var(--jade);border-color:var(--jade);color:var(--ink)}
.burger{transition:.25s}
.burger:hover{color:var(--jade)}
.qa button:hover{color:var(--jade)}