/* ==========================================================================
   万境 · 建联系统 官网
   纯静态、无第三方字体/图标库。色彩沿用品牌蓝 + 深海军蓝 + 薄荷绿。
   ========================================================================== */

:root {
  --ink: #0a1020;
  --navy: #0f1a33;
  --navy-2: #152446;
  --blue: #214cff;
  --blue-ink: #173bd6;
  --blue-soft: #e8edff;
  --mint: #8df5d4;
  --mint-ink: #0d8f70;
  --paper: #fbfcff;
  --white: #fff;
  --mist: #f1f5ff;
  --line: #dfe6f3;
  --line-strong: #c9d5ea;
  --muted: #5d6a86;
  --muted-2: #8490a8;
  --warn: #b7791f;
  --warn-soft: #fff6e6;
  --green: #0d8f70;
  --green-soft: #e6fbf4;
  --red: #c0392b;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 50px rgba(18, 35, 76, .1);
  --shadow-sm: 0 8px 24px rgba(18, 35, 76, .07);
  --max: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
h1, h2, h3, h4, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }

::selection { background: var(--blue); color: #fff; }

:focus-visible {
  outline: 3px solid rgba(33, 76, 255, .45);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}
.narrow { max-width: 820px; }
.center { text-align: center; margin-top: 34px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 100;
  background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 8px;
  transition: top .2s;
}
.skip-link:focus { top: 16px; }

/* ------------------------------------------------------------------ header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 252, 255, .86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(223, 230, 243, .8);
}
.header-inner {
  display: flex; align-items: center; gap: 28px;
  min-height: 72px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand img { width: 36px; height: 36px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text strong { font-size: 19px; letter-spacing: .04em; }
.brand-text small { font-size: 11px; color: var(--muted); letter-spacing: .16em; margin-top: 3px; }
.nav { display: flex; align-items: center; gap: 26px; margin-left: 8px; }
.nav a {
  font-size: 14px; color: var(--muted); padding: 6px 0; position: relative;
  transition: color .15s;
}
.nav a:hover, .nav a.is-active { color: var(--ink); }
.nav a.is-active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; background: var(--blue); border-radius: 2px;
}
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none; background: transparent; border: 1px solid var(--line);
  width: 42px; height: 42px; border-radius: 10px; color: var(--ink);
  align-items: center; justify-content: center; cursor: pointer;
}
.mobile-nav {
  border-top: 1px solid var(--line); padding: 12px 20px 18px;
  display: flex; flex-direction: column; gap: 4px; background: var(--paper);
}
.mobile-nav[hidden] { display: none; }
.mobile-nav a {
  padding: 12px 6px; border-radius: 8px; color: var(--ink); font-size: 15px;
}
.mobile-nav a:hover { background: var(--mist); }

/* ----------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 20px; border-radius: 999px;
  font-size: 14px; font-weight: 600; letter-spacing: .01em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, background .15s, border-color .15s, color .15s, box-shadow .15s;
  white-space: nowrap;
}
.btn .icon { width: 17px; height: 17px; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 24px rgba(33, 76, 255, .22); }
.btn-primary:hover { background: var(--blue-ink); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue-ink); }
.btn-ghost-light { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.3); }
.btn-ghost-light:hover { background: rgba(255,255,255,.16); }
.btn-sm { min-height: 38px; padding: 0 16px; font-size: 13px; }
.text-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue-ink); font-size: 14px; font-weight: 600;
}
.text-link .icon { width: 16px; height: 16px; transition: transform .15s; }
.text-link:hover .icon { transform: translateX(3px); }
.icon { width: 20px; height: 20px; flex: 0 0 auto; }

/* ------------------------------------------------------------------ shared */
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--blue-ink); margin-bottom: 14px;
}
.lead { font-size: 18px; line-height: 1.75; color: var(--muted); }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.badge {
  display: inline-flex; align-items: center; padding: 6px 11px; border-radius: 999px;
  background: var(--white); border: 1px solid var(--line); color: var(--muted);
  font-size: 12px; letter-spacing: .02em;
}
.section { padding: 92px 0; }
.section-soft { background: linear-gradient(180deg, #f4f7ff 0%, #eef3ff 100%); }
.section-dark { background: var(--navy); color: #fff; }
.section-dark .eyebrow { color: var(--mint); }
.section-dark .lead { color: rgba(255,255,255,.68); }
.section-dark h2 { color: #fff; }
.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 42px); line-height: 1.28; letter-spacing: -.02em; }
.section-head .lead { margin-top: 14px; }
h1, h2, h3 { font-weight: 750; letter-spacing: -.02em; }
.fine-print { font-size: 12.5px; color: var(--muted-2); line-height: 1.7; margin-top: 18px; }
.fine-print a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }

/* -------------------------------------------------------------------- hero */
.hero {
  position: relative; overflow: hidden;
  padding: 84px 0 54px;
  background:
    radial-gradient(900px 420px at 78% 8%, rgba(141,245,212,.24), transparent 62%),
    radial-gradient(900px 500px at 12% 0%, rgba(33,76,255,.12), transparent 58%),
    var(--paper);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(33,76,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33,76,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 88%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 88%);
}
.hero-grid {
  position: relative; display: grid; grid-template-columns: 1.02fr .98fr;
  gap: 54px; align-items: center;
}
.hero-copy h1 {
  font-size: clamp(38px, 5.2vw, 66px); line-height: 1.14; letter-spacing: -.035em;
  margin-bottom: 20px;
}
.hero-copy .lead { max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-note { margin-top: 16px; font-size: 12.5px; color: var(--muted-2); font-family: var(--mono); }

.hero-visual { position: relative; min-height: 420px; display: flex; align-items: center; }
.orb { position: absolute; border-radius: 50%; filter: blur(8px); pointer-events: none; }
.orb-a { width: 340px; height: 340px; right: -60px; top: -30px; background: radial-gradient(circle, rgba(141,245,212,.55), transparent 68%); }
.orb-b { width: 380px; height: 380px; left: -70px; bottom: -80px; background: radial-gradient(circle, rgba(33,76,255,.18), transparent 70%); }

.product-window {
  position: relative; z-index: 2; width: 100%; max-width: 620px;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 30px 80px rgba(15, 26, 51, .16);
  overflow: hidden;
}
.pw-top {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  border-bottom: 1px solid var(--line); background: #f8faff;
  font-size: 11px; color: var(--muted);
}
.dots { display: inline-flex; gap: 5px; }
.dots i { width: 7px; height: 7px; border-radius: 50%; background: #d6deed; }
.dots i:first-child { background: #ffb3a7; }
.dots i:nth-child(2) { background: #ffd68a; }
.dots i:nth-child(3) { background: #9ee6c8; }
.pw-title { font-weight: 600; color: var(--ink); }
.pw-pill { margin-left: auto; background: var(--green-soft); color: var(--green); padding: 3px 8px; border-radius: 999px; font-size: 10px; }
.pw-body { display: grid; grid-template-columns: 54px 1fr; min-height: 330px; }
.pw-side { background: var(--navy); display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 14px 0; }
.pw-logo {
  width: 30px; height: 30px; border-radius: 9px; background: linear-gradient(145deg, #4f8bff, var(--blue));
  color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 13px; margin-bottom: 6px;
}
.pw-nav { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; color: rgba(255,255,255,.5); }
.pw-nav .icon { width: 16px; height: 16px; }
.pw-nav.is-active { background: rgba(255,255,255,.12); color: var(--mint); }
.pw-main { padding: 14px; background: #fff; }
.pw-search {
  display: flex; align-items: center; justify-content: space-between;
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
  font-size: 11px; color: var(--muted-2);
}
.pw-filter { background: var(--blue); color: #fff; border-radius: 6px; padding: 4px 9px; font-size: 10px; }
.pw-tabs { display: flex; gap: 16px; margin: 13px 2px 9px; font-size: 11px; color: var(--muted-2); }
.pw-tabs .is-active { color: var(--blue-ink); font-weight: 700; position: relative; }
.pw-tabs .is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -5px; height: 2px; background: var(--blue); border-radius: 2px; }
.pw-table { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.pw-row {
  display: grid; grid-template-columns: 1.7fr .7fr .7fr .8fr; gap: 6px;
  padding: 8px 10px; font-size: 10.5px; color: var(--muted); align-items: center;
  border-top: 1px solid #eef2fa;
}
.pw-row:first-child { border-top: 0; }
.pw-head { background: #f8faff; color: var(--muted-2); font-size: 9.5px; letter-spacing: .06em; }
.pw-user { display: inline-flex; align-items: center; gap: 6px; color: var(--ink); }
.pw-user i {
  width: 18px; height: 18px; border-radius: 50%; background: var(--blue-soft);
  color: var(--blue-ink); font-style: normal; font-size: 9px; font-weight: 700;
  display: grid; place-items: center;
}
.pw-tag { font-size: 9.5px; padding: 2px 6px; border-radius: 999px; background: #f0f3fa; color: var(--muted); text-align: center; }
.pw-tag.ok { background: var(--green-soft); color: var(--green); }
.pw-tag.skip { background: var(--warn-soft); color: var(--warn); }
.pw-progress { margin-top: 12px; border: 1px solid var(--line); border-radius: 8px; padding: 10px; }
.pw-progress-head { display: flex; justify-content: space-between; font-size: 10px; color: var(--muted); margin-bottom: 7px; }
.pw-bar { height: 6px; border-radius: 999px; background: #eef2fa; overflow: hidden; }
.pw-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--blue), #5f8cff); border-radius: 999px; }
.pw-log { margin-top: 7px; font-size: 9.5px; color: var(--muted-2); }

.float-card {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: 9px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 12px; box-shadow: var(--shadow-sm); font-size: 11px;
  animation: floaty 6s ease-in-out infinite;
}
.float-card strong { display: block; font-size: 11.5px; color: var(--ink); }
.float-card small { display: block; font-size: 9.5px; color: var(--muted-2); }
.fc-icon {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: var(--green-soft); color: var(--green);
}
.fc-icon.mint { background: var(--blue-soft); color: var(--blue-ink); }
.fc-icon .icon { width: 15px; height: 15px; }
.float-a { right: -18px; top: 46px; }
.float-b { left: -26px; bottom: 28px; animation-delay: -2.4s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

/* -------------------------------------------------------------- stats band */
.stats-band { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stat { padding: 26px 26px 24px; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat strong { display: block; font-size: 24px; letter-spacing: -.02em; color: var(--blue-ink); }
.stat span { display: block; font-size: 13px; color: var(--ink); font-weight: 600; margin-top: 4px; }
.stat small { display: block; font-size: 11.5px; color: var(--muted-2); margin-top: 2px; }

/* --------------------------------------------------------------- feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column; min-height: 238px;
  transition: transform .18s ease, border-color .18s, box-shadow .18s;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(33,76,255,.45); box-shadow: var(--shadow-sm); }
.feature-icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--blue-soft);
  color: var(--blue-ink); display: grid; place-items: center; margin-bottom: 18px;
}
.feature-icon .icon { width: 21px; height: 21px; }
.feature-icon.light { background: rgba(141,245,212,.12); color: var(--mint); }
.feature-card h3 { font-size: 19px; margin-bottom: 9px; }
.feature-card p { font-size: 14px; color: var(--muted); line-height: 1.75; }
.feature-more {
  margin-top: auto; padding-top: 18px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 600; color: var(--blue-ink);
}
.feature-more .icon { width: 15px; height: 15px; transition: transform .15s; }
.feature-card:hover .feature-more .icon { transform: translateX(3px); }

/* ------------------------------------------------------------------- steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px 22px 22px;
}
.step::before {
  content: ""; position: absolute; left: 22px; right: 22px; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--mint)); border-radius: 0 0 3px 3px;
}
.step-num { font-family: var(--mono); font-size: 12px; color: var(--blue-ink); letter-spacing: .08em; }
.step h3 { font-size: 17px; margin: 10px 0 8px; }
.step p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ---------------------------------------------------------- dark diff grid */
.diff-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.diff-card {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius); padding: 26px;
}
.diff-card h3 { font-size: 18px; margin: 18px 0 9px; }
.diff-card p { font-size: 13.5px; color: rgba(255,255,255,.65); line-height: 1.75; }

/* --------------------------------------------------------------- security */
.security-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.security-copy h2 { font-size: clamp(28px, 3.4vw, 42px); line-height: 1.28; margin-bottom: 16px; }
.security-copy .text-link { margin-top: 22px; }
.security-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.sec-item {
  display: flex; gap: 12px; padding: 20px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.sec-item > span {
  width: 28px; height: 28px; border-radius: 50%; background: var(--green-soft);
  color: var(--green); display: grid; place-items: center; flex: 0 0 auto;
}
.sec-item .icon { width: 15px; height: 15px; }
.sec-item strong { display: block; font-size: 14px; margin-bottom: 3px; }
.sec-item p { font-size: 12.5px; color: var(--muted); line-height: 1.65; }

/* ---------------------------------------------------------------- pricing */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.price-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: 20px; padding: 28px; display: flex; flex-direction: column;
}
.price-card.is-featured {
  border-color: var(--blue); box-shadow: 0 24px 60px rgba(33,76,255,.16);
  transform: translateY(-6px);
}
.price-flag {
  position: absolute; top: -12px; left: 28px; background: var(--blue); color: #fff;
  font-size: 11px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
}
.price-card h3 { font-size: 18px; }
.price { margin: 16px 0 6px; display: flex; align-items: baseline; gap: 8px; }
.price strong { font-size: 34px; letter-spacing: -.04em; }
.price span { font-size: 12px; color: var(--muted-2); }
.price-desc { font-size: 13px; color: var(--muted); min-height: 22px; }
.price-card ul { margin: 18px 0 22px; display: flex; flex-direction: column; gap: 9px; }
.price-card li { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--muted); }
.price-card li .icon { width: 15px; height: 15px; color: var(--green); margin-top: 4px; }
.price-card .btn { margin-top: auto; width: 100%; }

/* -------------------------------------------------------------------- faq */
.faq-list { display: flex; flex-direction: column; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between;
  align-items: center; gap: 18px; padding: 20px 2px; font-size: 16px; font-weight: 600;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon { width: 18px; height: 18px; color: var(--muted-2); transition: transform .18s; }
.faq-item[open] summary .icon { transform: rotate(45deg); color: var(--blue-ink); }
.faq-body { padding: 0 2px 22px; }
.faq-body p { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* ---------------------------------------------------------------- cta band */
.cta-band { padding: 0 0 92px; }
.cta-inner {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 40px; align-items: center;
  background: linear-gradient(135deg, #0d1830 0%, #14264f 60%, #1b3a7a 100%);
  color: #fff; border-radius: 28px; padding: 54px;
}
.cta-inner::after {
  content: ""; position: absolute; right: -80px; top: -100px; width: 340px; height: 340px;
  background: radial-gradient(circle, rgba(141,245,212,.28), transparent 68%);
  border-radius: 50%; pointer-events: none;
}
.cta-inner .eyebrow { color: var(--mint); }
.cta-inner h2 { font-size: clamp(26px, 3.2vw, 38px); line-height: 1.3; margin-bottom: 12px; }
.cta-inner p { color: rgba(255,255,255,.7); font-size: 14.5px; }
.cta-actions { position: relative; z-index: 2; display: flex; flex-direction: column; gap: 10px; }

/* --------------------------------------------------------------- page hero */
.page-hero {
  padding: 68px 0 34px;
  background:
    radial-gradient(700px 300px at 82% 0%, rgba(141,245,212,.2), transparent 60%),
    radial-gradient(700px 360px at 10% 0%, rgba(33,76,255,.1), transparent 60%),
    var(--paper);
  border-bottom: 1px solid rgba(223,230,243,.7);
}
.breadcrumb {
  display: flex; align-items: center; gap: 8px; font-size: 12px;
  color: var(--muted-2); margin-bottom: 20px;
}
.breadcrumb a:hover { color: var(--blue-ink); }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.16; letter-spacing: -.03em; max-width: 900px; }
.page-hero .lead { max-width: 760px; margin-top: 16px; }

/* ------------------------------------------------------------- feature rows */
.feature-rows { padding-top: 18px; }
.feature-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
  align-items: center; padding: 66px 0; border-bottom: 1px solid var(--line);
}
.feature-row:last-child { border-bottom: 0; }
.feature-row.is-reversed .feature-copy { order: 2; }
.feature-row.is-reversed .feature-visual { order: 1; }
.feature-copy h2 { font-size: clamp(26px, 3vw, 38px); line-height: 1.3; margin-bottom: 14px; }
.feature-copy .lead { font-size: 15.5px; }
.check-list { display: flex; flex-direction: column; gap: 10px; margin: 22px 0 24px; }
.check-list li { display: flex; gap: 9px; align-items: flex-start; font-size: 14px; color: var(--muted); line-height: 1.65; }
.check-list li .icon { width: 16px; height: 16px; color: var(--green); margin-top: 4px; flex: 0 0 auto; }
.check-list.big li { font-size: 15px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.check-list.big li:last-child { border-bottom: 0; }

/* --------------------------------------------------------------- mini apps */
.mini-app {
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 24px 60px rgba(15,26,51,.1); overflow: hidden;
  font-size: 12px; color: var(--ink);
}
.mini-top {
  display: flex; align-items: center; gap: 10px; padding: 11px 14px;
  background: #f8faff; border-bottom: 1px solid var(--line);
  font-size: 11px; color: var(--muted); font-weight: 600;
}
.mini-dots { display: inline-flex; gap: 4px; }
.mini-dots i { width: 6px; height: 6px; border-radius: 50%; background: #d6deed; }
.mini-dots i:first-child { background: #ffb3a7; }
.mini-dots i:nth-child(2) { background: #ffd68a; }
.mini-dots i:nth-child(3) { background: #9ee6c8; }
.mini-pill { margin-left: auto; background: var(--green-soft); color: var(--green); padding: 3px 8px; border-radius: 999px; font-size: 9.5px; font-weight: 600; }
.mini-toolbar { display: flex; gap: 8px; padding: 14px 14px 0; }
.mini-input {
  flex: 1; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
  font-size: 11px; color: var(--muted-2);
}
.mini-btn { background: var(--blue); color: #fff; border-radius: 8px; padding: 8px 12px; font-size: 10.5px; font-weight: 600; }
.mini-tabs { display: flex; gap: 14px; padding: 12px 14px 8px; font-size: 10.5px; color: var(--muted-2); }
.mini-tabs .is-active { color: var(--blue-ink); font-weight: 700; }
.mini-list { padding: 0 14px 12px; display: flex; flex-direction: column; gap: 7px; }
.mini-row {
  display: flex; align-items: center; gap: 9px; padding: 9px 10px;
  border: 1px solid var(--line); border-radius: 9px;
}
.mini-row > div { flex: 1; min-width: 0; }
.mini-row strong { display: block; font-size: 11px; }
.mini-row small { display: block; font-size: 9.5px; color: var(--muted-2); }
.avatar {
  width: 24px; height: 24px; border-radius: 50%; background: var(--blue-soft);
  color: var(--blue-ink); font-size: 9px; font-weight: 700;
  display: grid; place-items: center; flex: 0 0 auto;
}
.tag {
  display: inline-flex; align-items: center; padding: 3px 7px; border-radius: 999px;
  background: #f0f3fa; color: var(--muted); font-size: 9.5px; white-space: nowrap;
}
.tag-green { background: var(--green-soft); color: var(--green); }
.tag-amber { background: var(--warn-soft); color: var(--warn); }
.mini-foot { padding: 10px 14px; border-top: 1px solid var(--line); background: #f8faff; font-size: 9.5px; color: var(--muted-2); }
.mini-form { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 14px; }
.mini-field { border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.mini-field label { display: block; font-size: 9px; color: var(--muted-2); }
.mini-field span { font-size: 11px; font-weight: 600; }
.mini-progress { margin: 0 14px 10px; border: 1px solid var(--line); border-radius: 9px; padding: 10px; }
.mini-progress > div:first-child { display: flex; justify-content: space-between; font-size: 10px; color: var(--muted); margin-bottom: 6px; }
.mini-bar { height: 6px; border-radius: 999px; background: #eef2fa; overflow: hidden; }
.mini-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--blue), #5f8cff); }
.mini-log { padding: 0 14px 12px; display: flex; flex-direction: column; gap: 4px; }
.mini-log p { font-size: 10px; color: var(--muted); }
.mini-log .ok { color: var(--green); font-weight: 700; margin-right: 4px; }
.mini-log .skip { color: var(--warn); font-weight: 700; margin-right: 4px; }
.mini-log .bad { color: var(--red); font-weight: 700; margin-right: 4px; }
.mini-chat .chat-body { padding: 16px 14px 14px; display: flex; flex-direction: column; gap: 9px; background: #f6f8fe; }
.bubble { max-width: 82%; padding: 9px 11px; border-radius: 12px; font-size: 11px; line-height: 1.5; }
.bubble-in { background: #fff; border: 1px solid var(--line); border-bottom-left-radius: 3px; }
.bubble-out { margin-left: auto; background: var(--blue); color: #fff; border-bottom-right-radius: 3px; }
.bubble-product { display: flex; gap: 8px; align-items: center; background: #fff; color: var(--ink); border: 1px solid var(--line); }
.bubble-product strong { display: block; font-size: 10.5px; }
.bubble-product small { display: block; font-size: 9px; color: var(--muted-2); }
.prod-thumb {
  width: 34px; height: 34px; border-radius: 8px; flex: 0 0 auto;
  background: linear-gradient(145deg, #dbe5ff, #f4d9ff);
}
.prod-thumb.alt { background: linear-gradient(145deg, #d9f7ee, #dbe5ff); }
.prod-thumb.warm { background: linear-gradient(145deg, #ffe6cf, #ffd3df); }
.delivery {
  display: flex; align-items: center; gap: 8px; margin: 4px auto 0;
  background: var(--green-soft); border: 1px solid #c6f0e2; border-radius: 10px;
  padding: 7px 10px; font-size: 10px; color: var(--green);
}
.delivery-check { width: 20px; height: 20px; border-radius: 50%; background: #fff; display: grid; place-items: center; }
.delivery-check .icon { width: 12px; height: 12px; }
.delivery strong { display: block; font-size: 10px; }
.delivery small { display: block; font-size: 8.5px; color: #3c8a74; }
.mini-table { padding: 12px 14px; }
.mini-tr { display: grid; grid-template-columns: 1.4fr .8fr 1.2fr; gap: 8px; padding: 8px 0; border-bottom: 1px solid #eef2fa; font-size: 10.5px; align-items: center; }
.mini-tr:last-child { border-bottom: 0; }
.mini-th { color: var(--muted-2); font-size: 9px; letter-spacing: .06em; }
.shop-grid { display: grid; gap: 8px; padding: 14px; }
.shop-card { border: 1px solid var(--line); border-radius: 10px; padding: 11px 12px; }
.shop-card strong { display: block; font-size: 11px; }
.shop-card small { display: block; font-size: 9.5px; color: var(--muted-2); margin: 2px 0 7px; }
.shop-card.is-warn { border-color: #f2d49b; background: #fffaf0; }
.prod-grid { display: grid; gap: 8px; padding: 14px; }
.prod-card { display: flex; align-items: center; gap: 9px; border: 1px solid var(--line); border-radius: 10px; padding: 9px 10px; }
.prod-card > div { flex: 1; min-width: 0; }
.prod-card strong { display: block; font-size: 10.5px; }
.prod-card small { display: block; font-size: 9px; color: var(--muted-2); }
.stat-mini { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding: 14px; }
.stat-mini > div { border: 1px solid var(--line); border-radius: 9px; padding: 10px; text-align: center; }
.stat-mini strong { display: block; font-size: 18px; color: var(--blue-ink); letter-spacing: -.03em; }
.stat-mini small { display: block; font-size: 9px; color: var(--muted-2); }

/* ---------------------------------------------------------------- download */
.download-grid { display: grid; grid-template-columns: 1.55fr .75fr; gap: 26px; align-items: start; }
.version-banner {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 20px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; margin-bottom: 18px;
}
.version-banner h2 { font-size: 34px; letter-spacing: -.04em; margin-top: 8px; }
.version-banner p { font-size: 13px; color: var(--muted); margin-top: 2px; }
.file-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.file-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column;
}
.file-card.is-primary { border-color: rgba(33,76,255,.45); }
.file-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.file-head h3 { font-size: 17px; }
.file-card > p { font-size: 13px; color: var(--muted); margin-top: 6px; }
.file-meta { font-family: var(--mono); font-size: 11px !important; color: var(--muted-2) !important; }
.hash-row { margin: 14px 0 16px; display: flex; flex-direction: column; gap: 6px; }
.hash {
  display: block; font-family: var(--mono); font-size: 9.5px; color: var(--muted-2);
  background: #f7f9ff; border: 1px solid var(--line); border-radius: 7px;
  padding: 7px 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.copy-btn {
  align-self: flex-start; background: transparent; border: 1px solid var(--line);
  border-radius: 999px; padding: 4px 10px; font-size: 10.5px; color: var(--muted);
  cursor: pointer;
}
.copy-btn:hover { border-color: var(--blue); color: var(--blue-ink); }
.file-card .btn { margin-top: auto; width: 100%; }
.download-side { display: flex; flex-direction: column; gap: 14px; }
.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.side-card h3 { font-size: 15px; margin-bottom: 12px; }
.side-card p { font-size: 12.5px; color: var(--muted); line-height: 1.7; }
.side-card .check-list { margin: 0 0 14px; }
.side-card .check-list li { font-size: 12px; }
.side-card .text-link { margin-top: 10px; }

/* ---------------------------------------------------------------- releases */
.release-list { display: flex; flex-direction: column; gap: 0; }
.release-item {
  display: grid; grid-template-columns: 170px 1fr; gap: 26px;
  padding: 28px 0; border-bottom: 1px solid var(--line);
}
.release-item:first-child { border-top: 1px solid var(--line); }
.release-meta { display: flex; flex-direction: column; gap: 5px; align-items: flex-start; }
.release-version { font-family: var(--mono); font-size: 16px; font-weight: 700; color: var(--blue-ink); }
.release-date { font-size: 11.5px; color: var(--muted-2); }
.release-body h3 { font-size: 17px; margin-bottom: 8px; }
.release-body ul { display: flex; flex-direction: column; gap: 5px; }
.release-body li { position: relative; padding-left: 14px; font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.release-body li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--line-strong); }
.release-item.is-current .release-body h3 { color: var(--blue-ink); }

/* -------------------------------------------------------------------- help */
.search-box {
  display: flex; align-items: center; gap: 10px; background: #fff;
  border: 1px solid var(--line); border-radius: 999px; padding: 0 18px;
  height: 52px; margin-bottom: 34px; box-shadow: var(--shadow-sm);
}
.search-box .icon { color: var(--muted-2); width: 18px; height: 18px; }
.search-box input { border: 0; outline: none; flex: 1; background: transparent; font-size: 14px; color: var(--ink); }
.search-empty { text-align: center; color: var(--muted); font-size: 14px; padding: 20px 0; }
.help-group { margin-bottom: 36px; }
.help-group h2 { font-size: 20px; margin-bottom: 14px; }
.article-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.article-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 20px; transition: border-color .15s, transform .15s;
}
.article-card:hover { border-color: rgba(33,76,255,.45); transform: translateY(-2px); }
.article-cat { font-family: var(--mono); font-size: 10px; letter-spacing: .1em; color: var(--blue-ink); text-transform: uppercase; }
.article-card h3 { font-size: 15.5px; margin: 7px 0 5px; }
.article-card p { font-size: 12.5px; color: var(--muted); line-height: 1.65; }
.article-card .feature-more { padding-top: 14px; }
.help-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  margin-top: 36px; padding: 26px; background: var(--navy); color: #fff; border-radius: var(--radius);
}
.help-cta h2 { font-size: 20px; margin-bottom: 5px; }
.help-cta p { font-size: 13px; color: rgba(255,255,255,.68); }

/* ----------------------------------------------------------------- article */
.article-layout { display: grid; grid-template-columns: 230px 1fr; gap: 48px; align-items: start; }
.article-aside { position: sticky; top: 96px; }
.toc { border-left: 1px solid var(--line); padding-left: 18px; }
.toc-title { font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 10px; }
.toc ul { display: flex; flex-direction: column; gap: 7px; }
.toc a { font-size: 12.5px; color: var(--muted); line-height: 1.5; display: block; }
.toc a:hover { color: var(--blue-ink); }
.toc-l3 { padding-left: 12px; }
.aside-cta { margin-top: 26px; padding: 16px; background: var(--mist); border-radius: var(--radius-sm); }
.aside-cta p { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.article-pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.article-pager a { display: flex; flex-direction: column; gap: 3px; max-width: 46%; }
.article-pager a.next { text-align: right; margin-left: auto; }
.article-pager small { font-size: 10.5px; color: var(--muted-2); font-family: var(--mono); }
.article-pager strong { font-size: 13px; color: var(--blue-ink); }

/* ------------------------------------------------------------------- prose */
.prose { max-width: 760px; font-size: 15px; color: #27324a; }
.prose h1 { font-size: clamp(30px, 3.4vw, 42px); line-height: 1.22; margin-bottom: 18px; }
.prose h2 { font-size: 24px; line-height: 1.35; margin: 42px 0 14px; padding-top: 8px; }
.prose h3 { font-size: 18px; margin: 28px 0 10px; }
.prose h4 { font-size: 16px; margin: 22px 0 8px; }
.prose p { margin: 12px 0; color: #3b4761; line-height: 1.85; }
.prose ul, .prose ol { margin: 12px 0 18px; padding-left: 22px; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin: 7px 0; color: #3b4761; line-height: 1.8; }
.prose li::marker { color: var(--blue); }
.prose strong { color: var(--ink); font-weight: 700; }
.prose code {
  font-family: var(--mono); font-size: .88em; background: #eef2fb;
  border: 1px solid #e1e8f6; border-radius: 5px; padding: 1px 5px; color: #1c3aa8;
}
.prose pre {
  background: #0e1730; color: #dbe4ff; border-radius: 12px; padding: 18px;
  overflow-x: auto; margin: 18px 0; font-size: 12.5px; line-height: 1.7;
}
.prose pre code { background: transparent; border: 0; padding: 0; color: inherit; font-size: inherit; }
.prose blockquote {
  margin: 18px 0; padding: 14px 18px; background: var(--mist);
  border-left: 3px solid var(--blue); border-radius: 0 10px 10px 0;
}
.prose blockquote p { margin: 4px 0; font-size: 14px; color: var(--muted); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
.prose a { color: var(--blue-ink); text-decoration: underline; text-underline-offset: 2px; }
.prose img { border-radius: 10px; margin: 18px 0; }
.table-wrap { overflow-x: auto; margin: 18px 0; border: 1px solid var(--line); border-radius: 12px; }
.prose table, .pricing-table table, .info-table { width: 100%; border-collapse: collapse; font-size: 13px; background: #fff; }
.prose th, .pricing-table th, .info-table th {
  text-align: left; background: #f7f9ff; color: var(--muted); font-weight: 600;
  padding: 11px 13px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
.prose td, .pricing-table td, .info-table td { padding: 11px 13px; border-bottom: 1px solid #eef2fa; color: #3b4761; vertical-align: top; }
.prose tr:last-child td, .pricing-table tr:last-child td, .info-table tr:last-child td { border-bottom: 0; }
.pricing-table th:not(:first-child), .pricing-table td:not(:first-child) { text-align: center; }
.info-table th { width: 150px; }

/* -------------------------------------------------------------- info cards */
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.info-card h3 { font-size: 17px; margin: 16px 0 8px; }
.info-card p { font-size: 13.5px; color: var(--muted); line-height: 1.75; }
.info-card .text-link { margin-top: 14px; }
.contact-line { margin-top: 8px; font-family: var(--mono); font-size: 12.5px !important; color: var(--ink) !important; }
.warning-card {
  margin-top: 28px; background: var(--warn-soft); border: 1px solid #f2d49b;
  border-radius: var(--radius-sm); padding: 20px 22px;
}
.warning-card strong { display: block; font-size: 14px; color: #8a5a12; margin-bottom: 4px; }
.warning-card p { font-size: 13px; color: #7a5a24; line-height: 1.7; }

/* ------------------------------------------------------------------- 404 */
.not-found { padding: 110px 0 120px; text-align: center; }
.not-found h1 { font-size: clamp(40px, 6vw, 72px); }
.not-found .lead { margin: 16px auto 0; max-width: 520px; }
.not-found .hero-actions { justify-content: center; }

/* ----------------------------------------------------------------- footer */
.site-footer { background: var(--navy); color: rgba(255,255,255,.72); padding: 62px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.05fr 1.95fr; gap: 64px; }
.brand-light .brand-text strong { color: #fff; }
.brand-light .brand-text small { color: rgba(255,255,255,.5); }
.footer-brand p { font-size: 13px; line-height: 1.8; margin-top: 18px; max-width: 340px; color: rgba(255,255,255,.58); }
.footer-contact { display: flex; align-items: center; gap: 8px; }
.footer-contact .icon { width: 16px; height: 16px; color: var(--mint); }
.footer-contact a { color: rgba(255,255,255,.8); }
.footer-contact a:hover { color: #fff; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer-col h3 { font-size: 12px; font-family: var(--mono); letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.45); margin-bottom: 14px; }
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col a { font-size: 13px; color: rgba(255,255,255,.72); }
.footer-col a:hover { color: var(--mint); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  margin-top: 46px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1);
  font-size: 11.5px; color: rgba(255,255,255,.45);
}
.footer-bottom a { color: rgba(255,255,255,.6); text-decoration: underline; text-underline-offset: 2px; }
.footer-note { max-width: 520px; }

/* -------------------------------------------------------------- responsive */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy .lead { max-width: 680px; }
  .hero-visual { min-height: 0; }
  .product-window { max-width: 680px; margin: 0 auto; }
  .float-a { right: 0; }
  .float-b { left: 0; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .diff-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .security-grid { grid-template-columns: 1fr; gap: 36px; }
  .download-grid { grid-template-columns: 1fr; }
  .download-side { display: grid; grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .article-layout { grid-template-columns: 1fr; gap: 28px; }
  .article-aside { position: static; }
  .toc { border-left: 0; padding-left: 0; border-bottom: 1px solid var(--line); padding-bottom: 16px; }
  .toc ul { flex-direction: row; flex-wrap: wrap; gap: 8px 16px; }
  .toc-l3 { padding-left: 0; }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn-sm { display: none; }
  .feature-row, .feature-row.is-reversed { grid-template-columns: 1fr; gap: 30px; padding: 48px 0; }
  .feature-row.is-reversed .feature-copy { order: 1; }
  .feature-row.is-reversed .feature-visual { order: 2; }
  .price-grid { grid-template-columns: 1fr; }
  .price-card.is-featured { transform: none; }
  .info-grid { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; padding: 38px 28px; }
  .cta-actions { flex-direction: row; flex-wrap: wrap; }
  .version-banner { flex-direction: column; align-items: flex-start; }
  .file-grid { grid-template-columns: 1fr; }
  .release-item { grid-template-columns: 1fr; gap: 10px; }
  .release-meta { flex-direction: row; align-items: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { border-left: 0; border-top: 1px solid var(--line); padding: 20px 18px; }
  .stat:first-child, .stat:nth-child(2) { border-top: 0; }
  .stat:first-child { padding-left: 18px; }
  .security-list { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, var(--max)); }
  .section { padding: 62px 0; }
  .hero { padding: 56px 0 36px; }
  .hero-copy h1 { font-size: clamp(34px, 9vw, 46px); }
  .lead { font-size: 16px; }
  .feature-grid, .diff-grid, .steps { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat { border-top: 1px solid var(--line); padding: 16px 0; }
  .stat:first-child { border-top: 0; }
  .download-side { grid-template-columns: 1fr; }
  .cta-band { padding-bottom: 62px; }
  .cta-inner { padding: 30px 22px; border-radius: 22px; }
  .help-cta { flex-direction: column; align-items: flex-start; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; }
  .float-a { top: 10px; right: -6px; }
  .float-b { bottom: -8px; left: -6px; }
  .pw-body { grid-template-columns: 44px 1fr; }
  .pw-side { gap: 8px; }
  .pw-nav { width: 26px; height: 26px; }
  .pw-row { grid-template-columns: 1.5fr .6fr .8fr; }
  .pw-row span:nth-child(3) { display: none; }
  .pw-head span:nth-child(3) { display: none; }
  .hero-actions .btn, .cta-actions .btn { width: 100%; }
  .article-pager { flex-direction: column; }
  .article-pager a, .article-pager a.next { max-width: 100%; text-align: left; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}