/* ==========================================================================
   安捷物业官网 — 样式
   色彩体系以品牌蓝（logo）为核心，暖纸色背景，衬线大标题的编辑式排版
   ========================================================================== */

:root {
  --blue-900: oklch(0.28 0.075 250);
  --blue-800: oklch(0.36 0.09 250);
  --blue-600: oklch(0.5 0.115 252);
  --blue-500: oklch(0.56 0.13 253);
  --blue-100: oklch(0.93 0.028 250);
  --paper:    oklch(0.975 0.008 90);
  --paper-2:  oklch(0.945 0.014 90);
  --ink:      oklch(0.26 0.02 255);
  --ink-soft: oklch(0.44 0.02 255);
  --line:     oklch(0.88 0.015 250);

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "STSong", serif;
  --font-sans:  "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  --container: 1120px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: clamp(15px, 1.1vw, 16.5px);
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: min(var(--container), 100% - 3rem);
  margin-inline: auto;
}

::selection { background: var(--blue-500); color: white; }

/* --------------------------------------------------------------------------
   顶部导航
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklch, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 76px;
}

.brand img { height: 44px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2.2rem);
}
.main-nav a {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding-block: 0.35rem;
  transition: color 0.25s var(--ease);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--blue-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.main-nav a:hover { color: var(--blue-800); }
.main-nav a:hover::after { transform: scaleX(1); }

.main-nav .nav-phone {
  color: white;
  background: var(--blue-600);
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.main-nav .nav-phone::after { display: none; }
.main-nav .nav-phone:hover { background: var(--blue-800); color: white; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

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

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(6rem, 14vh, 10rem) 0 clamp(3.5rem, 8vh, 6rem);
  background: var(--blue-900);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url("../images/hero-bg.jpg") center 35% / cover no-repeat;
  opacity: 0.9;
  pointer-events: none;
}

/* 遮罩：左侧压暗保证文字可读，右上透出社区实景 */
.hero-pattern {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg,
      color-mix(in oklch, var(--blue-900) 94%, transparent) 0%,
      color-mix(in oklch, var(--blue-900) 78%, transparent) 42%,
      color-mix(in oklch, var(--blue-900) 30%, transparent) 78%,
      color-mix(in oklch, var(--blue-900) 15%, transparent) 100%),
    linear-gradient(to top, var(--blue-900) 0%, transparent 30%);
  pointer-events: none;
}

.hero > .container { position: relative; }

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: color-mix(in oklch, white 82%, var(--blue-500));
  border: 1px solid color-mix(in oklch, white 35%, transparent);
  background: color-mix(in oklch, var(--blue-900) 40%, transparent);
  border-radius: 999px;
  padding: 0.3rem 1.1rem;
  margin-bottom: 2rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.6rem, 7.2vw, 5.4rem);
  line-height: 1.18;
  letter-spacing: 0.04em;
  color: white;
}
.hero-title em {
  font-style: normal;
  color: oklch(0.78 0.1 230);
  position: relative;
  white-space: nowrap;
}
.hero-title em::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0.06em;
  height: 0.14em;
  background: color-mix(in oklch, oklch(0.78 0.1 230) 30%, transparent);
  z-index: -1;
}

.hero-lead {
  max-width: 34em;
  margin-top: 1.8rem;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: color-mix(in oklch, white 78%, transparent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.4rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: clamp(3rem, 7vh, 4.5rem);
  padding-top: 2rem;
  border-top: 1px solid color-mix(in oklch, white 22%, transparent);
}
.hero-stats dt {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  color: white;
  font-variant-numeric: tabular-nums;
}
.hero-stats dt i {
  font-style: normal;
  font-size: 0.5em;
  margin-left: 0.15em;
  color: oklch(0.78 0.1 230);
}
.hero-stats dd {
  font-size: 0.88rem;
  color: color-mix(in oklch, white 68%, transparent);
}

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

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.98rem;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--blue-600);
  color: white;
  box-shadow: 0 8px 24px -10px color-mix(in oklch, var(--blue-600) 70%, transparent);
}
.btn-primary:hover {
  background: var(--blue-800);
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1.5px solid color-mix(in oklch, white 45%, transparent);
  color: white;
  background: color-mix(in oklch, white 8%, transparent);
}
.btn-ghost:hover {
  border-color: white;
  background: color-mix(in oklch, white 16%, transparent);
}

.btn-lg { padding: 1rem 2.4rem; font-size: 1.05rem; }

/* --------------------------------------------------------------------------
   通用板块
   -------------------------------------------------------------------------- */

.section { padding: clamp(4rem, 10vh, 7.5rem) 0; }
.section-alt { background: var(--paper-2); }

.section-eyebrow {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 1.1rem;
}
.section-eyebrow-light { color: color-mix(in oklch, white 65%, var(--blue-500)); }

.section-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}
.section-title-light { color: white; }

.section-lead {
  max-width: 36em;
  margin-top: 1rem;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   关于我们
   -------------------------------------------------------------------------- */

.about-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  margin-top: 2.5rem;
  align-items: start;
}

.about-copy p { margin-top: 1.2rem; color: var(--ink-soft); }
.about-copy p:first-of-type { margin-top: 1.6rem; }

.about-quote {
  margin-top: 2rem;
  padding-left: 1.4rem;
  border-left: 3px solid var(--blue-500);
}
.about-quote p {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--blue-800);
  margin: 0;
}
.about-quote cite {
  font-style: normal;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.about-facts {
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 2rem 2rem 1.6rem;
  box-shadow: 0 20px 45px -30px color-mix(in oklch, var(--blue-900) 35%, transparent);
}
.about-facts h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--blue-900);
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}
.about-facts ul { list-style: none; }
.about-facts li {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.7rem 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.92rem;
}
.about-facts li span { color: var(--ink-soft); flex-shrink: 0; }
.about-facts li strong { font-weight: 600; text-align: right; color: var(--ink); }
.about-note {
  margin-top: 1.1rem;
  font-size: 0.85rem;
  color: var(--blue-600);
  background: var(--blue-100);
  border-radius: 10px;
  padding: 0.7rem 1rem;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   服务范围
   -------------------------------------------------------------------------- */

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.service-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 2rem 1.8rem 1.8rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
.service-card::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-800));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in oklch, var(--blue-500) 40%, transparent);
  box-shadow: 0 24px 40px -24px color-mix(in oklch, var(--blue-900) 40%, transparent);
}
.service-card:hover::before { transform: scaleX(1); }

.service-no {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: color-mix(in oklch, var(--blue-500) 30%, transparent);
  font-variant-numeric: tabular-nums;
}
.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--blue-900);
  margin: 0.6rem 0 0.5rem;
}
.service-card p { font-size: 0.92rem; color: var(--ink-soft); }

/* --------------------------------------------------------------------------
   管理项目
   -------------------------------------------------------------------------- */

.project-list {
  list-style: none;
  margin-top: 3rem;
  border-top: 1px solid var(--line);
}
.project-list li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: baseline;
  gap: 1.5rem;
  padding: 1.35rem 0.5rem;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease), padding-left 0.3s var(--ease);
}
.project-list li:hover {
  background: var(--blue-100);
  padding-left: 1.2rem;
  border-radius: 8px;
}
.project-name {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 700;
  color: var(--blue-900);
}
.project-type { font-size: 0.88rem; color: var(--ink-soft); }
.project-tag {
  font-size: 0.8rem;
  color: var(--blue-600);
  background: var(--blue-100);
  border-radius: 999px;
  padding: 0.25rem 0.9rem;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   企业荣誉
   -------------------------------------------------------------------------- */

.section-dark {
  background:
    radial-gradient(900px 500px at 15% 0%, var(--blue-800), transparent 70%),
    var(--blue-900);
  color: white;
}

.honor-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: 3rem;
  background: color-mix(in oklch, white 16%, transparent);
  border: 1px solid color-mix(in oklch, white 16%, transparent);
  border-radius: 14px;
  overflow: hidden;
}
.honor-item {
  background: var(--blue-900);
  padding: 1.6rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background 0.35s var(--ease);
}
.honor-item:hover { background: var(--blue-800); }
.honor-item strong {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  color: white;
  line-height: 1.5;
}
.honor-item span {
  font-size: 0.78rem;
  line-height: 1.6;
  color: color-mix(in oklch, white 60%, transparent);
}

.honor-extra {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: color-mix(in oklch, white 55%, transparent);
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   联系我们
   -------------------------------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.contact-grid .section-lead { margin-bottom: 2rem; }

.contact-card {
  font-style: normal;
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 0.5rem 2rem;
  box-shadow: 0 20px 45px -30px color-mix(in oklch, var(--blue-900) 35%, transparent);
}
.contact-row {
  display: grid;
  grid-template-columns: 6.5em 1fr;
  gap: 1.5rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
}
.contact-row:last-child { border-bottom: 0; }
.contact-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-600);
  letter-spacing: 0.08em;
}
.contact-row a {
  color: var(--blue-800);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.contact-row a:hover { text-decoration: underline; }

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

.site-footer {
  background: var(--blue-900);
  color: color-mix(in oklch, white 65%, transparent);
  padding: 2.6rem 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}
.footer-logo {
  height: 38px;
  width: auto;
  /* 反白处理：logo 深蓝文字在深色底上用亮色滤镜模拟反白 */
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.footer-copy, .footer-beian { font-size: 0.82rem; }
.footer-beian a { color: inherit; }
.footer-beian a:hover { color: white; text-decoration: underline; }

/* --------------------------------------------------------------------------
   进场动画
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

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

@media (max-width: 960px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .main-nav {
    position: fixed;
    inset: 76px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.5rem 1.5rem;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .main-nav.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
  .main-nav a { padding: 0.8rem 0.2rem; border-bottom: 1px dashed var(--line); }
  .main-nav a::after { display: none; }
  .main-nav .nav-phone {
    margin-top: 1rem;
    text-align: center;
    border-bottom: 0;
  }

  .nav-toggle { display: flex; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .service-grid { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .project-list li { grid-template-columns: 1fr; gap: 0.3rem; }
  .project-tag { justify-self: start; }
  .footer-inner { flex-direction: column; text-align: center; }
}