/* ============================================================
   玩码场 Wancode — AI Coding 产品体验场
   视觉概念：「产品目录册」瑞士编辑风
   细线网格 · 大编号 · 等宽字标签 · 品牌黄只做点睛
   ============================================================ */

:root {
  --bg:     #FBFBF8;
  --ink:    #111111;
  --yellow: #FFD400;
  --orange: #FF4D00;
  --muted:  #6E6E68;
  --rule:   #111111;
  --mono:   ui-monospace, 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
  --sans:   'Noto Sans SC', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

::selection { background: var(--yellow); color: var(--ink); }

:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--ink); border: 2px solid var(--bg); }

img { max-width: 100%; display: block; user-select: none; -webkit-user-drag: none; }
a { color: inherit; text-decoration: none; }

/* ---------- 通用小元素 ---------- */
.mono {
  font-family: var(--mono);
  font-size: 11px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
}
.marker { background: var(--yellow); padding: 0 .12em; }
.wrap { width: min(1140px, calc(100% - 48px)); margin: 0 auto; }

/* ---------- 导航 ---------- */
.nav {
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  position: sticky; top: 0; z-index: 100;
}
.nav-inner {
  max-width: 1140px; margin: 0 auto;
  padding: 18px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.wordmark {
  font-family: var(--mono);
  font-weight: 700; font-size: 13px;
  letter-spacing: .22em; text-transform: uppercase;
}
.wordmark b { color: var(--orange); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a {
  font-family: var(--mono);
  font-size: 11.5px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
}
.nav-links a:hover { color: var(--orange); }
.nav-cta {
  background: var(--ink); color: var(--bg);
  padding: .55em 1.1em;
}
.nav-cta:hover { background: var(--yellow); color: var(--ink); }

/* ---------- HERO ---------- */
.hero {
  max-width: 1140px; margin: 0 auto;
  padding: 90px 24px 80px;
  display: grid; grid-template-columns: 1.15fr .85fr;
  gap: 60px; align-items: center;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 11px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  display: flex; align-items: center; gap: 10px;
  color: var(--muted);
}
.eyebrow:before {
  content: ''; width: 9px; height: 9px;
  background: var(--orange); border-radius: 50%;
}
.hero h1 {
  font-weight: 900;
  font-size: clamp(2.6rem, 6vw, 4.9rem);
  line-height: 1.12;
  letter-spacing: -.035em;
  margin: 26px 0 0;
}
.hl { background: var(--yellow); padding: 0 .1em; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.hero-copy {
  margin-top: 26px;
  font-size: 1.05rem; font-weight: 500;
  color: #3E3E39; max-width: 32em;
}
.hero-cta { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; margin-top: 36px; }

.btn-solid {
  display: inline-flex; align-items: center; gap: .6em;
  background: var(--ink); color: var(--bg);
  border: 2px solid var(--ink);
  padding: .95em 1.7em;
  font-weight: 900; font-size: 1rem;
  transition: .15s;
}
.btn-solid:hover { background: var(--yellow); color: var(--ink); }
.btn-line {
  font-weight: 900; font-size: .95rem;
  border-bottom: 2px solid var(--ink);
  padding-bottom: .2em;
  transition: .15s;
}
.btn-line:hover { color: var(--orange); border-color: var(--orange); }
.hero-note {
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: .08em;
  color: var(--muted);
}

/* ---------- 头像：黑白 / 悬停彩色 ---------- */
.ip-wrap { display: flex; justify-content: center; position: relative; }
.ip-coin { position: relative; width: clamp(240px, 26vw, 340px); }
.ip-coin img {
  border-radius: 50%;
  border: 1px solid var(--rule);
  filter: grayscale(1) contrast(1.05);
  transition: filter .4s, rotate .4s;
}
.ip-wrap:hover .ip-coin img { filter: grayscale(0); rotate: -3deg; }
.ip-coin .ip-badge {
  position: absolute; top: -4%; right: -6%;
  width: clamp(64px, 7vw, 88px); aspect-ratio: 1;
  background: var(--yellow);
  border: 1px solid var(--rule);
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--display); font-size: clamp(1.8rem, 3vw, 2.6rem);
  rotate: 10deg;
}
.ip-caption {
  position: absolute; bottom: -8%; left: 50%; translate: -50% 0;
  font-family: var(--mono);
  font-size: 10.5px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  white-space: nowrap;
  background: var(--bg);
  padding: 0 10px;
  color: var(--muted);
}

/* ---------- 跑马灯 ---------- */
.marquee {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  overflow: hidden; white-space: nowrap;
  padding: 12px 0;
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .25em; text-transform: uppercase;
}
.marquee-track { display: flex; width: max-content; animation: scrollx 28s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span { margin-right: 56px; color: var(--muted); }
.marquee-track span b { color: var(--orange); font-weight: 700; margin-left: 56px; }
@keyframes scrollx { to { transform: translateX(-50%); } }

/* ---------- Section 通用（目录册式） ---------- */
.sec {
  max-width: 1140px; margin: 0 auto;
  padding: 100px 24px 90px;
  border-top: 1px solid var(--rule);
}
.sec:first-of-type { border-top: none; }
.sec-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 40px; margin-bottom: 56px;
}
.sec-idx {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--orange);
  display: block; margin-bottom: 18px;
}
.sec-head h2 {
  font-weight: 900;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  letter-spacing: -.035em;
  line-height: 1.15;
  max-width: 18em;
}
.sec-desc {
  max-width: 340px;
  font-size: .92rem; color: var(--muted);
  padding-bottom: 6px;
}

/* ---------- 02 服务目录行 ---------- */
.srow {
  display: grid; grid-template-columns: 110px 1fr auto;
  gap: 28px; align-items: start;
  padding: 36px 18px;
  border-top: 1px solid var(--rule);
  transition: background .15s;
}
.srow:last-of-type { border-bottom: 1px solid var(--rule); }
.srow:hover { background: var(--yellow); }
.srow:hover .s-desc, .srow:hover .s-idx { color: var(--ink); }
.s-idx {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted);
  padding-top: 8px;
}
.s-name {
  font-weight: 900;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  letter-spacing: -.03em;
  margin-bottom: 8px;
}
.s-desc { font-size: .95rem; color: var(--muted); max-width: 34em; }
.s-go {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  white-space: nowrap;
  padding-top: 10px;
  border-bottom: 2px solid var(--ink);
}
.srow:hover .s-go { border-color: var(--ink); }

/* ---------- 03 态度（黑底反转块） ---------- */
.attitude {
  background: var(--ink); color: var(--bg);
  padding: clamp(50px, 7vw, 90px) 24px;
}
.attitude-inner {
  max-width: 1140px; margin: 0 auto;
  display: grid; grid-template-columns: 1.1fr .9fr;
  gap: 60px; align-items: center;
}
.attitude h2 {
  font-weight: 900;
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  letter-spacing: -.03em; line-height: 1.25;
}
.attitude h2 em { font-style: normal; color: var(--yellow); }
.attitude .att-lead { margin-top: 24px; opacity: .75; max-width: 34em; font-size: .98rem; }
.att-list { list-style: none; }
.att-list li {
  padding: 22px 0;
  border-top: 1px solid #333;
}
.att-list li:last-child { border-bottom: 1px solid #333; }
.att-list b {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--yellow);
  display: block; margin-bottom: 6px;
}
.att-list p { font-size: .95rem; opacity: .85; }

/* ---------- 04 产品目录 ---------- */
.prod {
  display: grid; grid-template-columns: 110px 1fr auto;
  gap: 28px; align-items: start;
  padding: 36px 18px;
  border-top: 1px solid var(--rule);
  transition: background .15s;
}
.prod:last-of-type { border-bottom: 1px solid var(--rule); }
.prod:hover { background: var(--yellow); }
.prod .p-idx {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted); padding-top: 8px;
}
.prod h3 {
  font-weight: 900;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  letter-spacing: -.03em; margin-bottom: 8px;
}
.prod .p-desc { font-size: .95rem; color: var(--muted); max-width: 36em; }
.prod .p-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.prod .p-tags span {
  font-family: var(--mono);
  font-size: 10.5px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  border: 1px solid var(--rule);
  padding: 3px 10px; border-radius: 999px;
}
.prod .p-tags .ok { background: var(--ink); color: var(--yellow); border-color: var(--ink); }
.prod .p-go {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  white-space: nowrap; padding-top: 10px;
  border-bottom: 2px solid var(--ink);
}
.prod.sample .p-idx, .prod.sample .p-desc { color: var(--muted); }
.prod.sample:hover { background: var(--bg); outline: 1px dashed var(--muted); outline-offset: -14px; }

/* ---------- 05 上架与部署 ---------- */
.ship-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-bottom: 46px; }
.ship-col h3 {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 18px;
}
.ship-col ul { list-style: none; }
.ship-col li {
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-weight: 500; font-size: .95rem;
}
.platforms {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin: 0 0 40px;
}
.platforms span {
  font-family: var(--mono);
  font-size: 11px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  border: 1px solid var(--rule);
  padding: 6px 14px; border-radius: 999px;
}
.boundary {
  border: 1px dashed var(--rule);
  padding: 26px 30px;
}
.boundary h4 {
  font-family: var(--mono);
  font-size: 11px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 12px;
}
.boundary p { font-size: .9rem; color: #3E3E39; margin: 6px 0; }
.boundary b { color: var(--ink); }

/* ---------- 06 提交（黄底 + 白色提交单面板） ---------- */
.submit-sec {
  background: var(--yellow);
  border-top: 1px solid var(--rule);
  padding: 100px 24px;
}
.submit-inner {
  max-width: 1140px; margin: 0 auto;
  display: grid; grid-template-columns: .8fr 1.2fr;
  gap: 70px; align-items: start;
}
.submit-inner .sec-idx { color: var(--ink); opacity: .55; }
.submit-inner h2 {
  font-weight: 900;
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -.035em; line-height: 1.12;
  margin-top: 18px;
}
.submit-lede { margin-top: 22px; font-weight: 700; font-size: 1.02rem; max-width: 26em; }
.after-list { list-style: none; margin-top: 30px; }
.after-list li {
  display: flex; gap: 16px; align-items: baseline;
  padding: 14px 0;
  border-top: 1px solid rgba(17, 17, 17, .3);
  font-weight: 500; font-size: .95rem;
}
.after-list b {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  white-space: nowrap;
}
.submit-tiny { margin-top: 26px; font-size: .8rem; font-weight: 500; opacity: .7; max-width: 30em; }

.wform {
  background: var(--bg);
  border: 2px solid var(--ink);
  padding: 32px 32px 28px;
}
.wform-head {
  display: flex; justify-content: space-between;
  font-family: var(--mono);
  font-size: 10.5px; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 14px;
  margin-bottom: 26px;
}
.f-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 22px; }
.wform .field { margin-bottom: 20px; }
.f-grid .field { margin-bottom: 0; }
.wform label {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  margin-bottom: 8px;
}
.wform input, .wform select, .wform textarea {
  width: 100%;
  background: #fff;
  border: 2px solid var(--ink);
  border-radius: 0;
  font: inherit; font-size: .95rem; font-weight: 500;
  padding: 11px 13px;
  transition: .15s;
}
.wform textarea { min-height: 76px; resize: vertical; }
.wform input:focus, .wform select:focus, .wform textarea:focus {
  outline: none;
  box-shadow: 4px 4px 0 var(--yellow), 4px 4px 0 2px var(--ink);
}
.wform .check { display: flex; gap: 10px; align-items: flex-start; margin: 12px 0; }
.wform .check input { width: 16px; height: 16px; flex: none; margin-top: 3px; accent-color: var(--ink); }
.wform .check label {
  font-family: var(--sans); text-transform: none; letter-spacing: 0;
  font-size: .82rem; font-weight: 700; margin: 0; line-height: 1.5;
}
.wform .submit-btn {
  margin-top: 26px; width: 100%;
  background: var(--ink); color: var(--yellow);
  border: 2px solid var(--ink);
  padding: 16px;
  font-weight: 900; font-size: 1rem;
  cursor: pointer; transition: .15s;
}
.wform .submit-btn:hover { background: var(--bg); color: var(--ink); }
@media (max-width: 920px) {
  .submit-inner { grid-template-columns: 1fr; gap: 50px; }
}
@media (max-width: 560px) {
  .f-grid { grid-template-columns: 1fr; gap: 0; }
  .f-grid .field { margin-bottom: 20px; }
  .wform { padding: 24px 20px; }
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; }
.faq-item {
  display: grid; grid-template-columns: 60px 1fr; gap: 20px;
  padding: 26px 0;
  border-top: 1px solid var(--rule);
}
.faq-item:last-child { border-bottom: 1px solid var(--rule); }
.faq-item .q-idx {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  color: var(--orange); padding-top: 4px;
}
.faq-item h3 { font-weight: 900; font-size: 1.08rem; margin-bottom: 6px; }
.faq-item p { font-size: .93rem; color: #3E3E39; }

/* ---------- 页脚 ---------- */
.foot {
  border-top: 1px solid var(--rule);
  padding: 70px 24px 50px;
}
.foot-inner { max-width: 1140px; margin: 0 auto; }
.foot-word {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(3rem, 10vw, 7rem);
  letter-spacing: -.02em;
  line-height: 1;
}
.foot-word span { color: var(--orange); }
.foot-row {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  margin-top: 30px;
  font-family: var(--mono);
  font-size: 11px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted);
}
.foot-row a:hover { color: var(--orange); }

/* ---------- Toast ---------- */
#toast {
  position: fixed; left: 50%; bottom: 30px;
  transform: translate(-50%, 20px);
  opacity: 0;
  background: var(--ink); color: var(--yellow);
  padding: 13px 22px;
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .06em;
  z-index: 999; pointer-events: none;
  max-width: 86vw; text-align: center;
  transition: .3s;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; padding: 60px 24px 60px; gap: 50px; }
  .hero-right { order: -1; }
  .nav-links a:not(.nav-cta) { display: none; }
  .sec-head { display: block; }
  .sec-desc { margin-top: 16px; }
  .attitude-inner, .submit-inner, .ship-grid { grid-template-columns: 1fr; gap: 40px; }
  .srow, .prod { grid-template-columns: 1fr; gap: 10px; padding: 28px 6px; }
  .s-idx, .p-idx { padding-top: 0; }
  .s-go, .p-go { padding-top: 0; }
  .ip-coin { width: min(64vw, 300px); }
}
@media (max-width: 560px) {
  .hero { padding: 40px 20px 50px; }
  .sec { padding: 70px 20px 70px; }
  .submit-sec { padding: 70px 20px; }
  .foot-word { font-size: 3rem; }
}