/* =====================================================================
   AI 新大陆 · 全站样式
   品牌色取自 logo：青蓝 #38BDF8 / 深青 #0EA5E9 / 薄荷 #5EEAD4
                   珊瑚橘 #FB7185 → 暖橙 #FB923C（定位图钉）
   ===================================================================== */

:root {
  --cyan:        #38bdf8;
  --cyan-deep:   #0ea5e9;
  --cyan-dark:   #0284c7;
  --mint:        #5eead4;
  --teal:        #14b8a6;
  --coral:       #fb7185;
  --amber:       #fb923c;
  --grad-brand:  linear-gradient(135deg, #0ea5e9 0%, #22d3ee 55%, #5eead4 100%);
  --grad-warm:   linear-gradient(135deg, #fb7185 0%, #fb923c 100%);
  --grad-soft:   linear-gradient(180deg, #f0fbff 0%, #f7fffd 60%, #ffffff 100%);

  --ink:         #0f2437;
  --ink-2:       #33536b;
  --ink-3:       #6b879c;
  --line:        #e3eef5;
  --line-2:      #cfe3ef;
  --bg:          #f6fbfe;
  --card:        #ffffff;

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --sh-sm: 0 1px 2px rgba(15, 60, 90, .06), 0 2px 8px rgba(15, 60, 90, .05);
  --sh:    0 4px 12px rgba(15, 60, 90, .07), 0 12px 32px rgba(15, 60, 90, .07);
  --sh-lg: 0 12px 32px rgba(15, 60, 90, .10), 0 32px 64px rgba(15, 60, 90, .09);
  --sh-brand: 0 8px 24px rgba(14, 165, 233, .28);
  --sh-warm:  0 8px 24px rgba(251, 113, 133, .28);

  --font: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Source Han Sans CN", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-en: "Inter", "Segoe UI", system-ui, sans-serif;

  --maxw: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: var(--cyan-dark); text-decoration: none; transition: color .18s; }
a:hover { color: var(--cyan-deep); }

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 { line-height: 1.35; margin: 0 0 .6em; font-weight: 800; letter-spacing: -.01em; }
h1 { font-size: clamp(28px, 4.6vw, 52px); }
h2 { font-size: clamp(23px, 3.1vw, 34px); }
h3 { font-size: clamp(18px, 2.1vw, 22px); }
p  { margin: 0 0 1em; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.wrap-wide { max-width: 1360px; }
.center { text-align: center; }
.muted { color: var(--ink-3); }
.small { font-size: 13px; }
.nowrap { white-space: nowrap; }
.mt0 { margin-top: 0; } .mb0 { margin-bottom: 0; }
.hide { display: none !important; }

.grad-text {
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.warm-text {
  background: var(--grad-warm);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------------------------------------------------------------- 顶栏 */
.topbar {
  position: sticky; top: 0; z-index: 90;
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  background: rgba(255, 255, 255, .82);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s;
}
.topbar.scrolled { box-shadow: var(--sh-sm); }
.topbar-in {
  display: flex; align-items: center; gap: 18px;
  height: 68px; max-width: 1360px; margin: 0 auto; padding: 0 22px;
}
.brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand img { width: 40px; height: 40px; border-radius: 12px; object-fit: cover;
             box-shadow: var(--sh-sm); }
.brand-txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-weight: 900; font-size: 17px; letter-spacing: .01em; }
.brand-sub { font-size: 10.5px; color: var(--ink-3); letter-spacing: .16em;
             font-family: var(--font-en); font-weight: 600; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  padding: 9px 14px; border-radius: 999px; color: var(--ink-2);
  font-size: 15px; font-weight: 600; white-space: nowrap;
}
.nav a:hover { background: #eef8fe; color: var(--cyan-dark); }
.nav a.on { color: var(--cyan-dark); background: #e6f6fe; }
.nav-cta { display: flex; align-items: center; gap: 9px; margin-left: 6px; }

.burger { display: none; margin-left: auto; width: 44px; height: 44px; border: 1px solid var(--line);
          border-radius: 12px; background: #fff; align-items: center; justify-content: center;
          cursor: pointer; flex-direction: column; gap: 4px; }
.burger i { display: block; width: 18px; height: 2px; background: var(--ink-2); border-radius: 2px; }

/* -------------------------------------------------------------- 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 11px 22px; border-radius: 999px; border: 1px solid transparent;
  font-family: inherit; font-size: 15px; font-weight: 700; cursor: pointer;
  transition: transform .16s, box-shadow .2s, background .2s, color .2s;
  white-space: nowrap; line-height: 1.5;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: var(--sh-brand); }
.btn-primary:hover { color: #fff; box-shadow: 0 10px 30px rgba(14, 165, 233, .38); transform: translateY(-2px); }
.btn-warm { background: var(--grad-warm); color: #fff; box-shadow: var(--sh-warm); }
.btn-warm:hover { color: #fff; transform: translateY(-2px); }
.btn-ghost { background: #fff; color: var(--ink-2); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan-dark); box-shadow: var(--sh-sm); }
.btn-soft { background: #e9f7fe; color: var(--cyan-dark); }
.btn-soft:hover { background: #dcf1fd; color: var(--cyan-dark); }
.btn-danger { background: #fff1f2; color: #e11d48; border-color: #fecdd3; }
.btn-danger:hover { background: #ffe4e6; color: #be123c; }
.btn-sm { padding: 7px 15px; font-size: 13.5px; }
.btn-lg { padding: 15px 32px; font-size: 16.5px; }
.btn-block { width: 100%; }
.btn[disabled], .btn.disabled { opacity: .5; pointer-events: none; }

/* ---------------------------------------------------------- 页头/区块 */
.section { padding: clamp(52px, 7vw, 96px) 0; position: relative; }
/* 装饰性的绝对定位元素（光晕、圆形渐变等）不允许把页面撑出横向滚动条 */
.section, .hero, .panel, .card { overflow-x: clip; }
.section-alt { background: #fff; }
.section-tint { background: var(--grad-soft); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-en); font-size: 12px; font-weight: 800;
  letter-spacing: .2em; text-transform: uppercase; color: var(--cyan-deep);
  background: #e7f6fe; border: 1px solid #d3ecfb;
  padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}
.sec-title { margin-bottom: 12px; }
.sec-lead { color: var(--ink-2); font-size: 16.5px; max-width: 760px; }
.sec-head.center .sec-lead { margin-left: auto; margin-right: auto; }

/* ------------------------------------------------------------- 首页 hero */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 78% 14%, rgba(94, 234, 212, .34), transparent 62%),
    radial-gradient(900px 460px at 8% 82%, rgba(56, 189, 248, .22), transparent 60%),
    linear-gradient(180deg, #eefbff 0%, #f7fffd 52%, #ffffff 100%);
}
.hero-in {
  display: grid; grid-template-columns: 1.02fr .98fr; gap: 40px;
  align-items: center; padding: clamp(46px, 6.4vw, 90px) 0 clamp(40px, 5vw, 78px);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  background: rgba(255, 255, 255, .86); border: 1px solid #d8eefb;
  padding: 7px 15px 7px 9px; border-radius: 999px; font-size: 13.5px;
  font-weight: 700; color: var(--ink-2); box-shadow: var(--sh-sm); margin-bottom: 22px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: #22c55e;
                   box-shadow: 0 0 0 4px rgba(34, 197, 94, .16); }
.hero h1 { margin-bottom: 18px; letter-spacing: -.02em; }
.hero-slogan {
  font-size: clamp(19px, 2.3vw, 25px); font-weight: 800; margin: 0 0 18px;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.hero-slogan .tag {
  font-size: 12.5px; font-weight: 800; letter-spacing: .06em; font-family: var(--font-en);
  color: #fff; background: var(--grad-warm); padding: 5px 13px; border-radius: 999px;
}
.hero-lead { font-size: 17px; color: var(--ink-2); max-width: 560px; margin-bottom: 28px; }
.hero-btns { display: flex; gap: 13px; flex-wrap: wrap; margin-bottom: 34px; }
.hero-stats { display: flex; gap: 34px; flex-wrap: wrap; }
.hero-stats b { display: block; font-size: 27px; font-weight: 900; font-family: var(--font-en);
                letter-spacing: -.02em; }
.hero-stats span { font-size: 13px; color: var(--ink-3); }
.hero-art { position: relative; }
.hero-art img { border-radius: var(--r-xl); box-shadow: var(--sh-lg); }
.hero-art::after {
  content: ""; position: absolute; inset: 8% -6% -8% 6%;
  background: var(--grad-brand); filter: blur(52px); opacity: .18; z-index: -1; border-radius: 50%;
}
.hero-float {
  position: absolute; background: rgba(255, 255, 255, .95); backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: var(--r); padding: 11px 15px;
  box-shadow: var(--sh); font-size: 13px; font-weight: 700; display: flex;
  align-items: center; gap: 9px; animation: floaty 5.5s ease-in-out infinite;
}
.hero-float.f1 { left: -22px; top: 14%; }
.hero-float.f2 { right: -14px; bottom: 16%; animation-delay: -2.6s; }
.hero-float .ic { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
                  font-size: 15px; background: #e9f7fe; }
.hero-float .ic.warm { background: #fff1f0; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* marquee 跑马灯 */
.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
           background: #fff; padding: 15px 0; }
.marquee-track { display: flex; gap: 44px; width: max-content; animation: slide 32s linear infinite; }
.marquee span { font-weight: 800; color: var(--ink-3); font-size: 14.5px;
                display: flex; align-items: center; gap: 11px; white-space: nowrap; }
.marquee span::before { content: "◆"; color: var(--mint); font-size: 9px; }
@keyframes slide { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ------------------------------------------------------------- 卡片网格 */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 24px; box-shadow: var(--sh-sm); transition: transform .22s, box-shadow .22s, border-color .22s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--sh); border-color: #d6ebf7; }
.card-flat:hover { transform: none; box-shadow: var(--sh-sm); }
.card-ic {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  font-size: 23px; background: linear-gradient(135deg, #e8f7ff, #e6fdf6); margin-bottom: 15px;
}
.card-ic.warm { background: linear-gradient(135deg, #fff1f0, #fff7ed); }
.card h3 { margin-bottom: 9px; font-size: 19px; }
.card p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------- 主理人 */
.founder {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-xl);
  overflow: hidden; box-shadow: var(--sh-sm); transition: transform .22s, box-shadow .22s;
}
.founder:hover { transform: translateY(-5px); box-shadow: var(--sh-lg); }
.founder-top { padding: 26px 26px 22px; background: linear-gradient(160deg, #f2fbff, #f4fffc); position: relative; }
.founder-role {
  position: absolute; right: 20px; top: 20px; font-size: 11.5px; font-weight: 800;
  font-family: var(--font-en); letter-spacing: .1em; text-transform: uppercase;
  color: #fff; background: var(--grad-warm); padding: 5px 12px; border-radius: 999px;
}
.founder-ava {
  width: 74px; height: 74px; border-radius: 22px; display: grid; place-items: center;
  font-size: 30px; font-weight: 900; color: #fff; margin-bottom: 15px; box-shadow: var(--sh);
}
.founder-name { font-size: 22px; font-weight: 900; margin-bottom: 3px; }
.founder-name em { font-style: normal; font-size: 13.5px; color: var(--ink-3); font-weight: 700;
                   margin-left: 7px; font-family: var(--font-en); }
.founder-tag { font-size: 13.5px; color: var(--cyan-dark); font-weight: 700; margin-bottom: 13px; }
.founder-creds { list-style: none; padding: 0; margin: 0; }
.founder-creds li { position: relative; padding-left: 19px; font-size: 14px; color: var(--ink-2);
                    margin-bottom: 6px; }
.founder-creds li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--grad-brand);
}
.island-card {
  background: repeating-linear-gradient(135deg, rgba(56,189,248,.05) 0 12px, transparent 12px 24px),
              linear-gradient(180deg, #fbfeff, #f6fdff);
  border-top: 1px dashed var(--line-2); padding: 20px 26px 24px;
}
.island-card-h {
  font-size: 12.5px; font-weight: 900; letter-spacing: .14em; font-family: var(--font-en);
  color: var(--cyan-deep); text-transform: uppercase; margin-bottom: 13px;
  display: flex; align-items: center; gap: 8px;
}
.island-row { display: flex; gap: 11px; margin-bottom: 11px; font-size: 14px; }
.island-row .no {
  flex: 0 0 auto; font-family: var(--font-en); font-weight: 900; font-size: 12px;
  color: var(--cyan-deep); background: #e7f6fe; border-radius: 7px;
  padding: 2px 7px; height: fit-content; margin-top: 3px;
}
.island-row .k { font-weight: 800; color: var(--ink); }
.island-row .v { color: var(--ink-2); }

/* ---------------------------------------------------------------- 活动 */
.act {
  display: flex; gap: 18px; align-items: flex-start; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px 24px;
  box-shadow: var(--sh-sm); transition: transform .2s, box-shadow .2s;
}
.act:hover { transform: translateY(-3px); box-shadow: var(--sh); }
.act-ic { flex: 0 0 auto; width: 54px; height: 54px; border-radius: 16px;
          display: grid; place-items: center; font-size: 25px;
          background: linear-gradient(135deg, #e8f7ff, #e6fdf6); }
.act h3 { margin-bottom: 6px; font-size: 18px; }
.act p { margin: 0; font-size: 14.5px; color: var(--ink-2); }

/* ---------------------------------------------------------------- 列表 */
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { position: relative; padding: 11px 0 11px 38px; font-size: 15.5px; color: var(--ink-2);
                 border-bottom: 1px solid var(--line); }
.check-list li:last-child { border-bottom: 0; }
.check-list li::before {
  content: ""; position: absolute; left: 6px; top: 19px; width: 16px; height: 16px;
  border-radius: 6px; background: var(--grad-brand);
}
.check-list li::after {
  content: ""; position: absolute; left: 11px; top: 23px; width: 6px; height: 3px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg);
}

/* ---------------------------------------------------------------- 表格/表单 */
.form-row { margin-bottom: 18px; }
.form-row label, .lbl { display: block; font-weight: 700; font-size: 14px; margin-bottom: 7px; color: var(--ink); }
.lbl .req { color: var(--coral); margin-left: 3px; }
.hint { font-size: 12.5px; color: var(--ink-3); font-weight: 500; margin-top: 5px; }

.input, .select, .textarea {
  width: 100%; padding: 12px 15px; border: 1px solid var(--line-2); border-radius: var(--r-sm);
  font-family: inherit; font-size: 15px; color: var(--ink); background: #fff;
  transition: border-color .18s, box-shadow .18s;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, .14);
}
.textarea { resize: vertical; min-height: 96px; line-height: 1.7; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b879c' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
          background-repeat: no-repeat; background-position: right 15px center; padding-right: 38px; }
.field-grid { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }

.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line-2);
  background: #fff; font-size: 13.5px; font-weight: 600; color: var(--ink-2);
  cursor: pointer; user-select: none; transition: all .16s;
}
.chip:hover { border-color: var(--cyan); color: var(--cyan-dark); }
.chip input { display: none; }
.chip.on { background: var(--grad-brand); color: #fff; border-color: transparent;
           box-shadow: 0 4px 12px rgba(14, 165, 233, .24); }
.chip.static { cursor: default; background: #f2f9fd; border-color: #e2f0f9; color: var(--cyan-dark); }
.chip.static:hover { border-color: #e2f0f9; color: var(--cyan-dark); }
.chip.cat-want { background: #fff7ed; border-color: #fed7aa; color: #c2410c; }
.chip .chip-mark { color: var(--coral); font-weight: 900; margin-left: 2px; }
.chip.on .chip-mark { color: #fff; opacity: .85; }
.chip:focus-within { box-shadow: 0 0 0 3px rgba(56, 189, 248, .3); }

/* 自己填技能 */
.custom-skill {
  margin-top: 4px; padding: 14px 16px; border: 1px dashed var(--line-2);
  border-radius: var(--r); background: #fbfdff;
}
.custom-skill .input { background: #fff; }
.custom-skill .lbl { margin-bottom: 6px; }

/* 参考示例框：始终显示在表单下方，不会被输入内容顶掉 */
.sample-box {
  margin-top: 12px; border: 1px solid var(--line); border-radius: var(--r);
  background: linear-gradient(180deg, #fbfeff, #f6fdff); overflow: hidden;
}
.sample-box-h {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 11px 15px; border-bottom: 1px dashed var(--line-2); background: #f2fbff;
  font-size: 13.5px;
}
.sample-box-h b { color: var(--cyan-dark); }
.sample-box-h .btn { margin-left: auto; }
.sample-box pre {
  margin: 0; padding: 14px 16px; font-family: var(--font);
  font-size: 14px; line-height: 1.95; color: var(--ink-2);
  white-space: pre-wrap; word-break: break-word;
}

/* 隐私 / 法律风险提示 */
.rules-box {
  border: 1px solid #ffe0b2; background: #fffdf7; border-radius: var(--r);
  padding: 18px 20px; margin: 4px 0 18px;
}
.rules-box h4 {
  margin: 0 0 10px; font-size: 15px; color: #b45309;
  display: flex; align-items: center; gap: 8px;
}
.rules-box ul { margin: 0; padding-left: 20px; font-size: 14px; color: var(--ink-2); line-height: 1.95; }
.rules-box li { margin-bottom: 4px; }
.rules-box .rules-note { margin: 12px 0 0; font-size: 13px; color: var(--ink-3); }
.consent-row {
  display: flex; gap: 11px; align-items: flex-start; padding: 14px 16px;
  border: 1px solid var(--line-2); border-radius: var(--r); background: #fff;
  cursor: pointer; transition: border-color .18s, background .18s;
}
.consent-row:hover { border-color: var(--cyan); }
.consent-row.on { border-color: var(--cyan); background: #f4fbff; }
.consent-row input { margin-top: 3px; flex: 0 0 auto; width: 18px; height: 18px; accent-color: var(--cyan-deep); }
.consent-row .ct { font-size: 14px; color: var(--ink-2); line-height: 1.8; }
.consent-row .ct b { color: var(--ink); }

/* 头像选择 / 上传 */
.avatar-picker { display: flex; flex-direction: column; gap: 15px; }
.avatar-presets { display: flex; gap: 9px; flex-wrap: wrap; }
.avatar-preset {
  width: 52px; height: 52px; border-radius: 17px; border: 2px solid transparent;
  display: grid; place-items: center; font-size: 23px; cursor: pointer;
  background: #f3f9fd; transition: transform .15s, border-color .15s, box-shadow .15s;
  padding: 0; line-height: 1;
}
.avatar-preset:hover { transform: translateY(-2px); box-shadow: var(--sh-sm); }
.avatar-preset.on { border-color: var(--cyan-deep); box-shadow: 0 0 0 3px rgba(56,189,248,.22); }
.avatar-upload-row { display: flex; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.avatar-prev.dragging { border: 2px dashed var(--cyan); }
#avatarStatus.av-ok   { color: #047857; font-weight: 700; }
#avatarStatus.av-err  { color: #be123c; font-weight: 700; }
#avatarStatus.av-busy { color: var(--cyan-dark); font-weight: 700; }

/* ---------------------------------------------------- 三步上手 */
.steps3 { gap: 14px; }
.step3 {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 18px 20px; box-shadow: var(--sh-sm);
}
.step3-n {
  flex: 0 0 auto; width: 34px; height: 34px; border-radius: 12px;
  display: grid; place-items: center; font-weight: 900; font-size: 16px;
  background: var(--grad-brand); color: #fff;
}
.step3-b { flex: 1 1 140px; min-width: 0; }
.step3-b b { display: block; font-size: 16px; }
.step3-b span { font-size: 13px; color: var(--ink-3); }

/* ---------------------------------------------------- 双向匹配说明 */
.pillar {
  display: flex; align-items: flex-start; gap: 13px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 16px 18px; box-shadow: var(--sh-sm);
}
.pillar-ic {
  flex: 0 0 auto; width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center; font-size: 21px;
  background: linear-gradient(135deg, #e8f7ff, #e6fdf6);
}
.pillar-ic.warm { background: linear-gradient(135deg, #fff1f0, #fff7ed); }
.pillar b { display: block; font-size: 16px; margin-bottom: 3px; }
.pillar span { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }

/* 主理人卡片（首页精简版，整卡可点） */
.founder-mini { text-align: center; display: block; color: inherit; }
.founder-mini:hover { color: inherit; }
.founder-mini em { font-style: normal; font-size: 13px; color: var(--ink-3); margin-left: 6px; font-family: var(--font-en); }
.founder-mini .founder-ava { width: 64px; height: 64px; border-radius: 20px; font-size: 27px; display: grid; place-items: center; color: #fff; }

/* 小屏隐藏 <br>，让文案自然换行 */
.hide-sm { display: inline; }
@media (max-width: 760px) {
  .hide-sm { display: none; }
  .step3 { padding: 15px 16px; gap: 11px; }
  .step3-n { width: 30px; height: 30px; border-radius: 10px; font-size: 15px; }
}

/* ---------------------------------------------------- 表单：编号区块 */
.fsec {
  padding: 20px 0 4px;
  border-top: 1px solid var(--line);
  margin-top: 20px;
}
.fsec:first-of-type { border-top: 0; margin-top: 0; padding-top: 0; }
.fsec-h {
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
  margin-bottom: 14px;
}
.fsec-h b { font-size: 17px; }
.fsec-n {
  flex: 0 0 auto; width: 25px; height: 25px; border-radius: 9px;
  display: grid; place-items: center; font-size: 13px; font-weight: 900;
  background: var(--grad-brand); color: #fff; align-self: center;
}
.fsec-tip { font-size: 13px; color: var(--ink-3); }

/* ---------------------------------------------------- 多选：按大类分组 */
.chip-groups { display: flex; flex-direction: column; gap: 15px; }
.chip-group-name {
  font-size: 12.5px; font-weight: 800; color: var(--ink-3);
  letter-spacing: .04em; margin-bottom: 7px;
}
.chips-wrap { gap: 8px; }

/* ---------------------------------------------------- 折叠区 */
.fmore {
  margin-top: 24px; border: 1px solid var(--line); border-radius: var(--r-lg);
  background: #fbfdff; overflow: hidden;
}
.fmore > summary {
  cursor: pointer; padding: 16px 20px; list-style: none;
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
  font-weight: 700; color: var(--cyan-dark);
}
.fmore > summary::-webkit-details-marker { display: none; }
.fmore > summary::before {
  content: "＋"; font-weight: 900; color: var(--cyan-deep);
}
.fmore[open] > summary::before { content: "－"; }
.fmore-t { font-size: 15.5px; }
.fmore-s { font-size: 12.5px; color: var(--ink-3); font-weight: 500; }
.fmore-body { padding: 4px 20px 20px; }
.fmore-inner { margin-top: 12px; background: #f6fbff; }
.fmore-inner > summary { padding: 12px 16px; font-size: 14px; }
.fmore-inner .fmore-body { padding: 0 16px 16px; }

/* 手机上把区块间距放宽一点，别挤在一起 */
@media (max-width: 760px) {
  .fsec { padding: 17px 0 3px; margin-top: 17px; }
  .fsec-h b { font-size: 16px; }
  .avatar-preset { width: 46px; height: 46px; font-size: 21px; border-radius: 15px; }
  .fmore > summary { padding: 14px 16px; }
  .fmore-body { padding: 2px 16px 16px; }
  .chip-groups { gap: 13px; }
}

.tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px;
  font-weight: 700; background: #eef7fd; color: var(--cyan-dark); border: 1px solid #e0f0fa;
}
.tag-warm { background: #fff1f0; color: #e11d48; border-color: #fecdd3; }
.tag-mint { background: #ecfdf5; color: #047857; border-color: #d1fae5; }
.tag-gold { background: #fffbeb; color: #b45309; border-color: #fde68a; }
.tag-grey { background: #f4f7f9; color: var(--ink-3); border-color: var(--line); }

/* ---------------------------------------------------------------- 徽标 */
.level {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 11px;
  border-radius: 999px; font-size: 12px; font-weight: 800;
}
.level-master       { background: var(--grad-warm); color: #fff; }
.level-practitioner { background: var(--grad-brand); color: #fff; }
.level-newbie       { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }

/* ---------------------------------------------------------------- 提示条 */
.flash {
  display: flex; align-items: flex-start; gap: 11px; padding: 14px 18px;
  border-radius: var(--r); margin-bottom: 20px; font-size: 14.5px; font-weight: 600;
  border: 1px solid;
}
.flash .fi { flex: 0 0 auto; font-size: 17px; line-height: 1.4; }
.flash-ok   { background: #f0fdf9; border-color: #a7f3d0; color: #065f46; }
.flash-warn { background: #fffbeb; border-color: #fde68a; color: #92400e; }
.flash-err  { background: #fff1f2; border-color: #fecdd3; color: #9f1239; }
.flash-info { background: #f0f9ff; border-color: #bae6fd; color: #075985; }

/* ---------------------------------------------------------------- 人才卡片 */
.pool-tools {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 18px 20px; box-shadow: var(--sh-sm); margin-bottom: 24px;
}
.filter-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.filter-row + .filter-row { margin-top: 12px; }
.filter-row .input, .filter-row .select { width: auto; min-width: 150px; }
.filter-label { font-size: 13px; font-weight: 800; color: var(--ink-3); margin-right: 2px; }

.talent {
  display: flex; gap: 16px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: 20px; box-shadow: var(--sh-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s; position: relative;
}
.talent:hover { transform: translateY(-3px); box-shadow: var(--sh); border-color: #d6ebf7; }
.talent-ava {
  flex: 0 0 auto; width: 62px; height: 62px; border-radius: 19px; display: grid;
  place-items: center; font-size: 25px; font-weight: 900; color: #fff; overflow: hidden;
}
.talent-ava img { width: 100%; height: 100%; object-fit: cover; }
.talent-body { min-width: 0; flex: 1 1 auto; }
.talent-head { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-bottom: 4px; }
.talent-name { font-size: 17.5px; font-weight: 900; }
.talent-meta { font-size: 13px; color: var(--ink-3); margin-bottom: 10px; }
.talent-bio { font-size: 14.5px; color: var(--ink-2); margin-bottom: 12px;
              display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.talent-foot { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.talent-side { flex: 0 0 auto; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }

/* ---------------------------------------------------------------- 需求卡 */
.need {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 22px 24px; box-shadow: var(--sh-sm); transition: transform .2s, box-shadow .2s;
  position: relative;
}
.need:hover { transform: translateY(-3px); box-shadow: var(--sh); }
.need.pinned { border-color: #fde68a; background: linear-gradient(180deg, #fffdf5, #fff); }
.need-head { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 10px; }
.need-ava { flex: 0 0 auto; width: 42px; height: 42px; border-radius: 13px; display: grid;
            place-items: center; font-weight: 900; color: #fff; font-size: 17px; overflow: hidden; }
.need-ava img { width: 100%; height: 100%; object-fit: cover; }
.need-title { font-size: 17px; font-weight: 800; margin: 0 0 3px; line-height: 1.5; }
.need-title a { color: var(--ink); }
.need-title a:hover { color: var(--cyan-dark); }
.need-meta { font-size: 12.5px; color: var(--ink-3); display: flex; gap: 9px; flex-wrap: wrap; align-items: center; }
.need-body { font-size: 14.5px; color: var(--ink-2); margin: 4px 0 14px;
             display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.need-foot { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; }
.need-stats { margin-left: auto; display: flex; gap: 14px; font-size: 12.5px; color: var(--ink-3); }

/* ---------------------------------------------------------------- 信箱 */
.msg {
  display: flex; gap: 14px; padding: 18px 20px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--sh-sm); transition: border-color .2s, box-shadow .2s;
}
.msg:hover { border-color: #d6ebf7; box-shadow: var(--sh); }
.msg.unread { border-left: 4px solid var(--cyan); background: #fcfdff; }
.msg-ava { flex: 0 0 auto; width: 46px; height: 46px; border-radius: 14px; display: grid;
           place-items: center; font-weight: 900; color: #fff; overflow: hidden; }
.msg-ava img { width: 100%; height: 100%; object-fit: cover; }
.msg-body { flex: 1 1 auto; min-width: 0; }
.msg-head { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-bottom: 4px; }
.msg-text { font-size: 14.5px; color: var(--ink-2); margin: 6px 0 0; white-space: pre-wrap; word-break: break-word; }

/* ---------------------------------------------------------------- 页脚 */
.footer { background: #0b2233; color: #a9c4d4; padding: 56px 0 26px; margin-top: 0; }
.footer a { color: #cfe6f3; }
.footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 36px; margin-bottom: 34px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.footer-brand img { width: 44px; height: 44px; border-radius: 13px; }
.footer-brand b { color: #fff; font-size: 18px; display: block; line-height: 1.2; }
.footer-brand span { font-size: 11px; letter-spacing: .16em; font-family: var(--font-en); }
.footer p { font-size: 14px; line-height: 1.8; }
.footer-list { list-style: none; padding: 0; margin: 0; }
.footer-list li { font-size: 14px; margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 20px;
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13px;
}

/* ---------------------------------------------------------------- 杂项 */
.panel {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px; box-shadow: var(--sh-sm);
}
.panel-narrow { max-width: 560px; margin: 0 auto; }
.auth-page { padding: 52px 0 76px; background: var(--grad-soft); min-height: 68vh; }
.page-head { padding: 34px 0 8px; }
.page-head h1 { margin-bottom: 8px; }

.breadcrumb { font-size: 13.5px; color: var(--ink-3); margin-bottom: 14px; }
.breadcrumb a { color: var(--ink-3); }
.breadcrumb a:hover { color: var(--cyan-dark); }

.empty { text-align: center; padding: 56px 20px; color: var(--ink-3); }
.empty .ei { font-size: 44px; margin-bottom: 12px; opacity: .6; }

.pager { display: flex; gap: 7px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 40px; height: 40px; padding: 0 13px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-2); background: #fff; color: var(--ink-2);
  font-weight: 700; font-size: 14px;
}
.pager a:hover { border-color: var(--cyan); color: var(--cyan-dark); }
.pager .on { background: var(--grad-brand); color: #fff; border-color: transparent; }
.pager .off { opacity: .4; pointer-events: none; }

.avatar-up { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
/* 表情头像：单独控制字号，避免被容器的 font-weight 影响 */
.ava-emoji { font-size: 1em; line-height: 1; display: block; }
.avatar-prev {
  width: 88px; height: 88px; border-radius: 24px; display: grid; place-items: center;
  font-size: 34px; font-weight: 900; color: #fff; overflow: hidden; flex: 0 0 auto; box-shadow: var(--sh-sm);
}
.avatar-prev img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 1000px) {
  .hero-in { grid-template-columns: 1fr; gap: 30px; }
  .hero-art { order: -1; }
  .hero-float { display: none; }
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .g3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 15.5px; }
  /* iOS Safari 在输入框字号 <16px 时会自动放大整页，所以在手机上统一提到 16px */
  .input, .select, .textarea, input, select, textarea { font-size: 16px; }
  /* 触控目标至少 44px 高 */
  .btn { min-height: 42px; }
  .btn-sm { min-height: 36px; }
  .chip { padding: 9px 15px; min-height: 38px; }
  /* 手机上装饰光晕太占地方，收一收，避免撑出横向滚动 */
  .hero-badge { font-size: 12.5px; padding: 6px 12px 6px 8px; }
  .hero-stats { gap: 18px 26px; }
  .hero-stats b { font-size: 23px; }
  .marquee-track { gap: 28px; }
  .nav { display: none; }
  .nav.open {
    display: flex; flex-direction: column; position: absolute; left: 14px; right: 14px; top: 74px;
    background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
    box-shadow: var(--sh-lg); padding: 12px; gap: 4px; z-index: 100;
  }
  .nav.open a { width: 100%; padding: 12px 15px; border-radius: 12px; }
  .nav-cta { display: none; }
  .burger { display: flex; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .field-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .hero-stats { gap: 24px; }
  .talent { flex-direction: column; }
  .talent-side { align-items: flex-start; flex-direction: row; }
  .need-stats { margin-left: 0; width: 100%; }
  .panel { padding: 22px 18px; }
  .island-card, .founder-top { padding-left: 20px; padding-right: 20px; }
  .footer-bottom { justify-content: flex-start; }
}
@media print { .topbar, .footer, .btn { display: none; } }