/* ==========================================================================
   金熊科技 · 企业官网
   设计基调：克制的科技感 —— 大量留白、细边线、深墨色文字、单一品牌蓝
   ========================================================================== */

:root {
  --ink: #0a1020;
  --ink-2: #16203a;
  --body: #4d5b73;
  --muted: #7c8aa3;
  --line: #e3e9f3;
  --line-strong: #cfd8e8;
  --bg: #ffffff;
  --bg-soft: #f5f8fd;
  --bg-deep: #070c18;
  --brand: #3e7ae0;
  --brand-2: #6594ff;
  --brand-deep: #1e3a6e;
  --gold: #c8a03c;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --wrap: 1180px;
  --radius: 14px;
  --radius-lg: 22px;
  --header-h: 76px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow-sm: 0 1px 2px rgba(16, 30, 54, 0.04), 0 8px 24px rgba(16, 30, 54, 0.05);
  --shadow-md: 0 18px 60px rgba(16, 30, 54, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

/* 保证 hidden 属性始终生效（会被 .auth-form / .account-grid 的 display 覆盖） */
[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
}

::selection {
  background: rgba(62, 122, 224, 0.18);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ------------------------------- 布局基础 ------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: clamp(64px, 8vw, 112px) 0;
}

.section--soft {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section--tight {
  padding: clamp(48px, 5vw, 72px) 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--brand);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.section-head {
  max-width: 720px;
}

.section-head h2 {
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.18;
}

.section-head p {
  margin-top: 18px;
  font-size: 17px;
  color: var(--body);
}

.section-head--center {
  margin: 0 auto;
  text-align: center;
}

.section-head--center .eyebrow {
  justify-content: center;
}

.section-head--split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  max-width: none;
}

.section-head--split .section-head__text {
  max-width: 640px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: gap 0.25s var(--ease);
}

.link-arrow::after {
  content: "→";
  font-family: var(--font-mono);
}

.link-arrow:hover {
  gap: 14px;
}

/* -------------------------------- 按钮 --------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
    box-shadow 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: linear-gradient(135deg, #4b86ea, #2f66cc);
  color: #fff;
  box-shadow: 0 10px 24px rgba(47, 102, 204, 0.24);
}

.btn--primary:hover {
  box-shadow: 0 14px 30px rgba(47, 102, 204, 0.32);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: #fff;
}

.btn--ghost:hover {
  border-color: var(--ink);
}

.btn--onDark {
  border-color: rgba(255, 255, 255, 0.24);
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.btn--onDark:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn--sm {
  height: 38px;
  padding: 0 18px;
  font-size: 14px;
  border-radius: 8px;
}

.btn--block {
  width: 100%;
}

.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* -------------------------------- 页头 --------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-stuck {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.brand img {
  height: 34px;
  width: auto;
}

.brand__logo--light {
  display: none;
}

.site-header--over:not(.is-stuck) .brand__logo--dark {
  display: none;
}

.site-header--over:not(.is-stuck) .brand__logo--light {
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav a {
  position: relative;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav a:hover {
  color: var(--brand);
  background: rgba(62, 122, 224, 0.06);
}

.nav a[aria-current="page"] {
  color: var(--brand);
  font-weight: 600;
}

.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 8px;
}

.header-user {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 14px 0 6px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  transition: border-color 0.2s var(--ease);
}

.header-user:hover {
  border-color: var(--brand);
}

.avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.site-header--over:not(.is-stuck) .nav a,
.site-header--over:not(.is-stuck) .header-user {
  color: rgba(255, 255, 255, 0.86);
  border-color: rgba(255, 255, 255, 0.28);
  background: transparent;
}

.site-header--over:not(.is-stuck) .nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.site-header--over:not(.is-stuck) .nav a[aria-current="page"] {
  color: #fff;
}

.site-header--over:not(.is-stuck) .nav a[aria-current="page"]::after {
  background: #fff;
}

.site-header--over:not(.is-stuck) .btn--ghost {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: #fff;
  position: relative;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.6px;
  background: var(--ink);
  transform: translateX(-50%);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle span {
  top: 50%;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  left: 0;
  transform: none;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.site-header--over:not(.is-stuck) .nav-toggle {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
}

.site-header--over:not(.is-stuck) .nav-toggle span,
.site-header--over:not(.is-stuck) .nav-toggle span::before,
.site-header--over:not(.is-stuck) .nav-toggle span::after {
  background: #fff;
}

/* --------------------------------- 首屏 --------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(56px, 8vw, 96px)) 0 clamp(60px, 7vw, 96px);
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.72);
  isolation: isolate;
}

.hero__glow,
.hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.hero__glow {
  background:
    radial-gradient(760px 420px at 78% 6%, rgba(62, 122, 224, 0.4), transparent 68%),
    radial-gradient(620px 380px at 12% 92%, rgba(29, 78, 160, 0.32), transparent 70%),
    radial-gradient(420px 300px at 50% 40%, rgba(101, 148, 255, 0.12), transparent 70%);
}

.hero__grid {
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 92%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 92%);
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(40px, 5vw, 72px);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  letter-spacing: 0.01em;
}

.hero__badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #5ee0a0;
  box-shadow: 0 0 0 4px rgba(94, 224, 160, 0.16);
}

.hero h1 {
  margin: 26px 0 0;
  color: #fff;
  font-size: clamp(38px, 5.2vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #a9c6ff 0%, #6594ff 46%, #4b86ea 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  margin-top: 24px;
  max-width: 552px;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.66);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 34px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero__meta span::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--brand-2);
}

/* ---------------------------- 首屏右侧运行面板 ---------------------------- */

.console {
  position: relative;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(20, 32, 56, 0.92), rgba(9, 16, 30, 0.86));
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
}

.console::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(101, 148, 255, 0.5), transparent 40%, transparent 70%, rgba(101, 148, 255, 0.24));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.console__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.42);
  text-transform: uppercase;
}

.console__dots {
  display: flex;
  gap: 5px;
}

.console__dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.console__task {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(101, 148, 255, 0.24);
  background: rgba(62, 122, 224, 0.1);
}

.console__task-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: rgba(169, 198, 255, 0.7);
  text-transform: uppercase;
}

.console__task p {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  line-height: 1.6;
}

.console__steps {
  margin-top: 6px;
}

.console__step {
  display: flex;
  gap: 12px;
  padding: 13px 2px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.07);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.62);
  animation: stepIn 0.6s var(--ease) both;
}

.console__step:last-child {
  border-bottom: 0;
}

.console__step:nth-child(1) { animation-delay: 0.15s; }
.console__step:nth-child(2) { animation-delay: 0.35s; }
.console__step:nth-child(3) { animation-delay: 0.55s; }
.console__step:nth-child(4) { animation-delay: 0.75s; }

.console__step i {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  border-radius: 50%;
  border: 1px solid rgba(94, 224, 160, 0.5);
  background: rgba(94, 224, 160, 0.12);
  position: relative;
}

.console__step i::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 7px;
  height: 4px;
  border-left: 1.4px solid #5ee0a0;
  border-bottom: 1.4px solid #5ee0a0;
  transform: rotate(-45deg) translate(0.5px, -1px);
}

.console__step b {
  display: block;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 2px;
}

.console__step span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.36);
}

.console__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.34);
  text-transform: uppercase;
}

.console__pulse {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #5ee0a0;
}

.console__pulse::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s infinite;
}

@keyframes stepIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(94, 224, 160, 0.5);
  }
  50% {
    box-shadow: 0 0 0 5px rgba(94, 224, 160, 0);
  }
}

/* -------------------------------- 数据条 -------------------------------- */

.statbar {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.statbar__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  padding: 34px 32px 34px 0;
  border-right: 1px solid var(--line);
}

.stat:first-child {
  padding-left: 0;
}

.stat:last-child {
  border-right: 0;
}

.stat__num {
  display: flex;
  align-items: baseline;
  gap: 3px;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.stat__num small {
  font-size: 0.6em;
  font-weight: 600;
  color: var(--brand);
}

.stat__label {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--muted);
}

/* --------------------------------- 卡片 --------------------------------- */

.grid {
  display: grid;
  gap: 20px;
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.card__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid rgba(62, 122, 224, 0.16);
  background: linear-gradient(150deg, rgba(101, 148, 255, 0.14), rgba(62, 122, 224, 0.05));
  color: var(--brand);
}

.card__icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3 {
  font-size: 18px;
  letter-spacing: -0.01em;
}

.card p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body);
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.tag {
  padding: 3px 9px;
  border-radius: 5px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.card--feature {
  padding: 34px 30px;
}

.card--accent {
  background: linear-gradient(160deg, #0d1730, #0a1120);
  border-color: rgba(101, 148, 255, 0.22);
  color: rgba(255, 255, 255, 0.66);
}

.card--accent h3 {
  color: #fff;
}

.card--accent p {
  color: rgba(255, 255, 255, 0.62);
}

.card--accent .card__icon {
  border-color: rgba(101, 148, 255, 0.3);
  background: rgba(101, 148, 255, 0.12);
  color: #a9c6ff;
}

/* ------------------------------- 双栏内容 ------------------------------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}

.split--wideRight {
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}

@media (min-width: 901px) {
  .split--reverse > .card {
    order: -1;
  }
}

.prose p + p {
  margin-top: 16px;
}

.prose strong {
  color: var(--ink);
  font-weight: 600;
}

.checklist {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.checklist li {
  display: flex;
  gap: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--body);
}

.checklist li::before {
  content: "";
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border-radius: 50%;
  background: rgba(62, 122, 224, 0.1)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%233e7ae0' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3.5 8.5l3 3 6-6.5'/%3E%3C/svg%3E")
    center / 13px no-repeat;
}

/* ------------------------------- 流程步骤 ------------------------------- */

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid var(--line);
}

.step {
  position: relative;
  padding: 28px 26px 30px 0;
}

.step + .step {
  padding-left: 26px;
  border-left: 1px solid var(--line);
}

.step__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--brand);
}

.step h4 {
  margin: 14px 0 8px;
  font-size: 16px;
}

.step p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--body);
}

/* 卡片内复用步骤样式时，取消分栏边线与缩进 */
.card .step + .step {
  border-left: 0;
  padding-left: 0;
}

/* ------------------------------ 能力栈列表 ------------------------------ */

.stack {
  display: grid;
  gap: 10px;
}

.stack__row {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.stack__row:hover {
  border-color: var(--line-strong);
  transform: translateX(3px);
}

.stack__idx {
  flex: none;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--brand);
}

.stack__row h4 {
  font-size: 15px;
  margin-bottom: 4px;
}

.stack__row p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body);
}

/* ------------------------------- 行业标签 ------------------------------- */

.industry-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.industry-row span {
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  font-size: 14px;
  color: var(--ink-2);
}

/* -------------------------------- 时间轴 -------------------------------- */

.timeline {
  position: relative;
  margin-top: 48px;
  padding-left: 28px;
  border-left: 1px solid var(--line-strong);
}

.timeline__item {
  position: relative;
  padding: 0 0 40px 30px;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--brand);
  box-shadow: 0 0 0 4px rgba(62, 122, 224, 0.1);
}

.timeline__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--brand);
}

.timeline__item h4 {
  margin: 8px 0 8px;
  font-size: 19px;
}

.timeline__item p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body);
  max-width: 560px;
}

/* --------------------------------- 引言 --------------------------------- */

.quote {
  padding: clamp(32px, 4vw, 48px);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, #0b1428, #0a1020);
  color: rgba(255, 255, 255, 0.72);
  position: relative;
  overflow: hidden;
}

.quote::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -140px;
  top: -180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(62, 122, 224, 0.34), transparent 68%);
}

.quote blockquote {
  margin: 0;
  position: relative;
  color: #fff;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.65;
  letter-spacing: -0.01em;
  font-weight: 500;
}

.quote footer {
  margin-top: 26px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  position: relative;
}

/* --------------------------------- FAQ ---------------------------------- */

.faq {
  margin-top: 40px;
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 4px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-size: 16px;
  font-weight: 500;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-size: 16px;
  font-weight: 400;
  color: var(--muted);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.faq details[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  color: var(--brand);
  border-color: var(--brand);
}

.faq details p {
  padding: 0 60px 24px 4px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--body);
}

/* --------------------------------- CTA ---------------------------------- */

.cta {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: clamp(38px, 5vw, 62px);
  background: linear-gradient(120deg, #0d1730 0%, #132a52 58%, #1b3f7d 100%);
  color: #fff;
}

.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 100% at 100% 0%, #000, transparent);
  -webkit-mask-image: radial-gradient(70% 100% at 100% 0%, #000, transparent);
  pointer-events: none;
}

.cta__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta h2 {
  color: #fff;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.25;
}

.cta p {
  margin-top: 12px;
  max-width: 480px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.62);
}

.cta__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --------------------------------- 页脚 --------------------------------- */

.site-footer {
  padding: clamp(52px, 6vw, 76px) 0 32px;
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.5);
}

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 0.62fr));
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand img {
  height: 40px;
  width: auto;
  margin-bottom: 20px;
}

.footer__brand p {
  max-width: 330px;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.42);
}

.footer__col h5 {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.9);
}

.footer__col li + li {
  margin-top: 10px;
}

.footer__col a,
.footer__col span {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.46);
  transition: color 0.2s var(--ease);
  line-height: 1.6;
  display: block;
}

.footer__col a:hover {
  color: #fff;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 26px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.34);
}

/* -------------------------------- 页面头 -------------------------------- */

.page-head {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(56px, 7vw, 88px)) 0 clamp(44px, 5vw, 64px);
  background: linear-gradient(115deg, #0a1020 0%, #0e1a33 62%, #14294b 100%);
  color: rgba(255, 255, 255, 0.7);
}

.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent);
  pointer-events: none;
}

.page-head .wrap {
  position: relative;
}

.page-head h1 {
  color: #fff;
  font-size: clamp(32px, 4.2vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.025em;
  max-width: 780px;
}

.page-head p {
  margin-top: 20px;
  max-width: 640px;
  font-size: 16.5px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.6);
}

.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
}

.crumbs a:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* -------------------------------- 表单 --------------------------------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
}

.field label span {
  color: var(--brand);
  margin-left: 2px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
  font-family: inherit;
  font-size: 14.5px;
  line-height: 1.5;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  appearance: none;
}

.field textarea {
  min-height: 118px;
  resize: vertical;
}

.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%237c8aa3' stroke-width='1.6'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 11px;
  padding-right: 36px;
}

.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: #b9c5d8;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(62, 122, 224, 0.12);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #a8b4c7;
}

.field__hint {
  font-size: 12px;
  color: var(--muted);
}

.field__error {
  font-size: 12.5px;
  color: #c93b3b;
  min-height: 0;
}

.file-drop {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px dashed var(--line-strong);
  border-radius: 9px;
  background: var(--bg-soft);
  font-size: 13.5px;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.file-drop:hover {
  border-color: var(--brand);
  background: rgba(62, 122, 224, 0.04);
}

.file-drop input {
  display: none;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.form-note {
  font-size: 12.5px;
  color: var(--muted);
}

.form-alert {
  display: none;
  padding: 12px 14px;
  border-radius: 9px;
  font-size: 13.5px;
  line-height: 1.6;
}

.form-alert.is-error {
  display: block;
  background: #fdf1f1;
  border: 1px solid #f3c9c9;
  color: #a52f2f;
}

.form-alert.is-success {
  display: block;
  background: #eef8f2;
  border: 1px solid #c3e6d3;
  color: #1d6b45;
}

/* ------------------------------ 联系信息块 ------------------------------ */

.contact-list {
  display: grid;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.contact-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.contact-item dt {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.contact-item dd {
  margin: 0;
  font-size: 15px;
  color: var(--ink);
  line-height: 1.7;
  word-break: break-word;
}

.contact-item dd a:hover {
  color: var(--brand);
}

.contact-item dd small {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--muted);
}

/* -------------------------------- 登录页 -------------------------------- */

.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  padding-top: var(--header-h);
}

.auth-aside {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 6vw, 80px) clamp(32px, 4vw, 64px);
  background: linear-gradient(150deg, #0a1020, #0d1a33 60%, #14294b);
  color: rgba(255, 255, 255, 0.62);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-aside::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(80% 80% at 20% 20%, #000, transparent);
  -webkit-mask-image: radial-gradient(80% 80% at 20% 20%, #000, transparent);
}

.auth-aside > * {
  position: relative;
}

.auth-aside h2 {
  color: #fff;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.3;
  max-width: 420px;
}

.auth-aside p {
  margin-top: 18px;
  max-width: 400px;
  font-size: 15px;
  line-height: 1.85;
}

.auth-points {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

.auth-points li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.6;
}

.auth-points li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--brand-2);
}

.auth-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(40px, 5vw, 64px) 28px 64px;
  background: #fff;
}

.auth-card {
  width: 100%;
  max-width: 424px;
}

.auth-card h1 {
  font-size: 28px;
  letter-spacing: -0.02em;
}

.auth-card > p {
  margin-top: 10px;
  font-size: 14.5px;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 4px;
  margin: 28px 0 24px;
  padding: 4px;
  border-radius: 10px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}

.tabs button {
  flex: 1;
  height: 38px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}

.tabs button[aria-selected="true"] {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 1px 3px rgba(16, 30, 54, 0.08);
}

.auth-form {
  display: grid;
  gap: 16px;
}

.auth-form .field input {
  height: 46px;
}

.auth-form__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  cursor: pointer;
}

.checkbox input {
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 3px;
  accent-color: var(--brand);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 24px 0;
  font-size: 12px;
  color: var(--muted);
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.auth-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 26px;
  font-size: 13.5px;
  color: var(--muted);
}

.auth-back:hover {
  color: var(--brand);
}

/* -------------------------------- 个人中心 -------------------------------- */

.account-grid {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.panel h2 {
  font-size: 16px;
  margin-bottom: 18px;
}

.profile-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.profile-head .avatar {
  width: 48px;
  height: 48px;
  font-size: 18px;
}

.profile-head strong {
  display: block;
  color: var(--ink);
  font-size: 16px;
}

.profile-head span {
  font-size: 12.5px;
  color: var(--muted);
}

.meta-list {
  display: grid;
  gap: 12px;
  font-size: 13.5px;
}

.meta-list div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.meta-list dt {
  color: var(--muted);
}

.meta-list dd {
  margin: 0;
  color: var(--ink);
  text-align: right;
  word-break: break-word;
}

.inquiry {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.inquiry:first-of-type {
  padding-top: 0;
}

.inquiry:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.inquiry__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 6px;
}

.inquiry__head strong {
  font-size: 14.5px;
  color: var(--ink);
}

.inquiry__head time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
}

.inquiry p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--body);
  white-space: pre-wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 999px;
  background: rgba(62, 122, 224, 0.09);
  color: var(--brand);
  font-size: 11.5px;
  font-weight: 500;
}

.empty {
  padding: 34px 0;
  text-align: center;
  font-size: 14px;
  color: var(--muted);
}

/* -------------------------------- 动效 --------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal,
  .console__step {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }
  .btn:hover,
  .card:hover {
    transform: none;
  }
}

/* ------------------------------- 响应式 -------------------------------- */

@media (max-width: 1080px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .console {
    max-width: 560px;
  }
  .footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 36px;
  }
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .step:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }
  .step:nth-child(3),
  .step:nth-child(4) {
    border-top: 1px solid var(--line);
  }
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .auth-shell {
    grid-template-columns: 1fr;
  }
  .auth-aside {
    display: none;
  }
}

@media (max-width: 900px) {
  :root {
    --header-h: 68px;
  }

  .nav-toggle {
    display: block;
    order: 3;
    margin-left: 0;
  }

  .header-actions {
    order: 2;
    margin-left: auto;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: 14px 20px 22px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(16, 30, 54, 0.12);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease);
  }

  .nav.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav a {
    padding: 12px 14px;
    color: var(--ink) !important;
    background: transparent !important;
  }

  .nav a[aria-current="page"] {
    background: rgba(62, 122, 224, 0.07) !important;
  }

  .nav a[aria-current="page"]::after {
    display: none;
  }

  .site-header--over:not(.is-stuck) .nav-toggle span,
  .site-header--over:not(.is-stuck) .nav-toggle span::before,
  .site-header--over:not(.is-stuck) .nav-toggle span::after {
    background: #fff;
  }

  .site-header .wrap {
    gap: 14px;
  }

  .split,
  .split--wideRight {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .statbar__inner {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat {
    padding: 26px 24px 26px 0;
  }

  .stat:nth-child(2) {
    border-right: 0;
  }

  .stat:nth-child(3),
  .stat:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .account-grid {
    grid-template-columns: 1fr;
  }

  .cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-head--split {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .wrap {
    padding: 0 20px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero__lead {
    font-size: 15.5px;
  }

  .hero__actions .btn {
    flex: 1 1 auto;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .step,
  .step + .step {
    padding: 24px 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .step:first-child {
    border-top: 0;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .contact-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .footer__top {
    grid-template-columns: 1fr;
  }

  .header-actions .btn--primary {
    display: none;
  }

  .header-actions .btn--ghost {
    padding: 0 12px;
  }

  .site-header .brand img {
    height: 30px;
  }

  .console {
    padding: 16px;
  }

  .quote {
    padding: 28px 22px;
  }

  .faq details p {
    padding-right: 12px;
  }

  .timeline {
    padding-left: 16px;
  }

  .timeline__item {
    padding-left: 20px;
  }

  .timeline__item::before {
    left: -22px;
  }
}