/* 字体：得意黑（Smiley Sans，SIL OFL 1.1），已按页面文字裁剪 */
@font-face {
  font-family: "Smiley";
  src: url("fonts/smiley-subset.woff2?v=4f613c86") format("woff2");
  font-display: swap;
}

/* 配色：路牌绿 + 路牌黄 —— “陪你走完最后一公里” */
:root {
  --paper: #f3f4ef;
  --surface: #ffffff;
  --ink: #14231e;
  --muted: #5b6b64;
  --line: #d9ded7;
  --sign: #0e6b4f;
  --sign-deep: #0a5640;
  --on-sign: #ffffff;
  --mark: #f7c948;
  --bubble: #ffffff;
  --reply: #0e6b4f;

  --font-display: "Smiley", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f1a16;
    --surface: #16241f;
    --ink: #e7eee9;
    --muted: #95a69d;
    --line: #26372f;
    --sign: #12805f;
    --sign-deep: #0e6b4f;
    --bubble: #1b2b25;
    --reply: #12805f;
  }
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

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

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: .01em;
  line-height: 1.15;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center;
  min-height: 48px; padding: 0 26px;
  border-radius: 999px;
  background: var(--sign); color: var(--on-sign);
  font-weight: 600;
  transition: background-color .2s;
}
.btn:hover { background: var(--sign-deep); }
.btn-line { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }
.btn-sm { min-height: 38px; padding: 0 18px; font-size: 14px; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--sign);
  display: grid; place-items: center;
}
.brand-mark::after {
  content: ""; width: 12px; height: 12px; border-radius: 50%;
  background: var(--mark);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-family: var(--font-display); font-size: 22px; }
.brand-sub { font-size: 12px; color: var(--muted); }

.nav-links { display: flex; align-items: center; gap: 28px; font-size: 15px; }
.nav-links a:not(.btn) { color: var(--muted); transition: color .2s; }
.nav-links a:not(.btn):hover { color: var(--ink); }

/* ---------- 首屏 ---------- */
.hero { padding: 88px 0 104px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 64px;
  align-items: center;
}
.hero h1 { font-size: clamp(42px, 6.4vw, 76px); margin-bottom: 28px; }
.lead { font-size: 18px; color: var(--muted); max-width: 33em; margin-bottom: 36px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* 路线牌：页面唯一的“主角” */
.route {
  background: var(--sign);
  color: var(--on-sign);
  border-radius: 22px;
  padding: 30px 30px 26px;
  box-shadow: 0 0 0 6px var(--paper), 0 0 0 8px var(--sign);
  transform: rotate(1.2deg);
}
.route-title {
  font-family: var(--font-display);
  font-size: 22px;
  margin-bottom: 22px;
}
.route-stops { position: relative; }
/* 底轨 */
.route-stops::before,
.route-stops::after {
  content: ""; position: absolute;
  left: 9px; top: 14px; bottom: 14px; width: 4px; border-radius: 2px;
}
.route-stops::before { background: rgba(255, 255, 255, .22); }
/* 走过的路 */
.route-stops::after {
  background: var(--mark);
  transform-origin: top;
  transform: scaleY(0);
  animation: travel 2.6s cubic-bezier(.55, .1, .35, 1) .5s forwards;
}
.stop {
  position: relative;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 9px 0 9px 40px;
  font-size: 16px;
}
.stop::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 22px; height: 22px; margin-top: -11px;
  border-radius: 50%;
  background: var(--sign);
  box-shadow: inset 0 0 0 4px rgba(255, 255, 255, .45);
  z-index: 1;
  animation: lit .3s ease forwards;
  animation-delay: calc(.5s + var(--i, 0) * .4s);
}
.stop:nth-child(1) { --i: 0; }
.stop:nth-child(2) { --i: 1; }
.stop:nth-child(3) { --i: 2; }
.stop:nth-child(4) { --i: 3; }
.stop:nth-child(5) { --i: 4; }
.stop:nth-child(6) { --i: 5; }
.stop:nth-child(7) { --i: 6; }
.stop-tag {
  flex-shrink: 0;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .85);
}
.stop.is-done .stop-tag { background: transparent; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .4); }
.stop.is-goal { font-family: var(--font-display); font-size: 21px; padding-top: 14px; }
.stop.is-goal .stop-tag { background: var(--mark); color: var(--ink); font-family: var(--font-body); font-weight: 600; }

@keyframes travel { to { transform: scaleY(1); } }
@keyframes lit {
  to { background: var(--mark); box-shadow: inset 0 0 0 4px var(--mark), 0 0 0 4px rgba(247, 201, 72, .25); }
}

/* ---------- 通用区块 ---------- */
.block { padding: 96px 0; }
.h2 { font-size: clamp(32px, 4.4vw, 48px); margin-bottom: 14px; }
.block-sub { color: var(--muted); font-size: 17px; }

/* ---------- 痛点：私信气泡 ---------- */
.chats-block { background: var(--surface); }
.chats {
  margin-top: 44px;
  display: flex; flex-direction: column; gap: 14px;
  max-width: 760px;
}
.bubble {
  align-self: flex-start;
  max-width: min(100%, 30em);
  background: var(--paper);
  padding: 13px 20px;
  border-radius: 20px 20px 20px 6px;
  font-size: 17px;
}
.bubble:nth-child(even) { margin-left: clamp(0px, 8vw, 96px); }
.bubble-reply {
  align-self: flex-end;
  margin-top: 10px;
  background: var(--reply);
  color: var(--on-sign);
  border-radius: 20px 20px 6px 20px;
  font-weight: 600;
}

/* ---------- 服务 ---------- */
.services { margin-top: 48px; border-top: 3px solid var(--ink); }
.service {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}
.service-head h3 { font-size: 34px; margin-bottom: 8px; }
.service-head p { color: var(--muted); }
.service-items { display: grid; gap: 0; }
.service-items li {
  display: grid;
  grid-template-columns: 15em 1fr;
  gap: 24px;
  padding: 14px 0;
  border-top: 1px dashed var(--line);
}
.service-items li:first-child { border-top: 0; padding-top: 6px; }
.service-items strong { font-weight: 600; }
.service-items span { color: var(--muted); }

/* ---------- 流程 ---------- */
.process-block { background: var(--surface); }
.steps {
  margin-top: 48px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  position: relative;
}
/* 虚线把四步连成一条路 */
.steps::before {
  content: ""; position: absolute;
  top: 23px; left: 24px; right: 24px;
  border-top: 2px dashed var(--line);
}
.step { position: relative; }
.step-num {
  position: relative; z-index: 1;
  display: grid; place-items: center;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--mark); color: #14231e;
  font-family: var(--font-display); font-size: 24px;
  box-shadow: 0 0 0 8px var(--surface);
  margin-bottom: 20px;
}
.step h3 { font-size: 18px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 15px; }

/* ---------- 约定 ---------- */
.pact {
  display: grid; grid-template-columns: 320px 1fr; gap: 48px; align-items: start;
}
.pact-list { display: grid; gap: 22px; }
.pact-list li {
  position: relative;
  padding-left: 40px;
  color: var(--muted);
  font-size: 17px;
}
.pact-list li::before {
  content: ""; position: absolute; left: 0; top: 4px;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--sign);
}
/* 对勾 */
.pact-list li::after {
  content: ""; position: absolute; left: 8px; top: 9px;
  width: 7px; height: 11px;
  border: solid var(--mark); border-width: 0 3px 3px 0;
  transform: rotate(45deg);
}
.pact-list strong { color: var(--ink); font-weight: 600; margin-right: 4px; }

/* ---------- FAQ ---------- */
.faq-block { padding-top: 0; }
.faq { display: grid; grid-template-columns: 320px 1fr; gap: 48px; align-items: start; }
.faq-list { border-top: 3px solid var(--ink); }
details { border-bottom: 1px solid var(--line); }
summary {
  cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 22px 0;
  font-size: 17px; font-weight: 600;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: ""; flex-shrink: 0;
  width: 12px; height: 12px;
  border: solid var(--sign); border-width: 0 3px 3px 0;
  transform: rotate(45deg) translateY(-3px);
  transition: transform .2s;
}
details[open] summary::after { transform: rotate(-135deg) translateY(-3px); }
details p { color: var(--muted); padding: 0 40px 24px 0; max-width: 40em; }

/* ---------- 联系 ---------- */
.contact { background: var(--sign); color: var(--on-sign); padding: 96px 0; }
.contact-inner { display: grid; grid-template-columns: 1fr auto; gap: 56px; align-items: center; }
.contact-title { font-size: clamp(40px, 5.6vw, 64px); margin-bottom: 18px; }
.contact-sub { color: rgba(255, 255, 255, .78); font-size: 17px; }
.contact-mail { margin-top: 28px; font-size: 17px; color: rgba(255, 255, 255, .78); }
/* 点一下就选中整个邮箱，方便复制 */
.mail-text { color: #ffffff; font-weight: 600; user-select: all; -webkit-user-select: all; }

/* 二维码：白底方块，暗色模式下也保持白底，保证好扫 */
.qr { justify-self: end; text-align: center; }
.qr img {
  display: block;
  width: 148px; height: auto;
  background: #ffffff;
  padding: 10px;
  border-radius: 14px;
  margin: 0 auto 12px;
}
.qr figcaption { font-size: 15px; color: rgba(255, 255, 255, .85); }

/* ---------- 页脚 ---------- */
.footer { padding: 28px 0; font-size: 14px; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer a { color: var(--muted); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .route { max-width: 520px; transform: none; }
  .service, .pact, .faq { grid-template-columns: 1fr; gap: 20px; }
  .service-items li { grid-template-columns: 1fr; gap: 2px; }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .steps::before { display: none; }
  .contact-inner { grid-template-columns: 1fr; gap: 36px; }
  .qr { justify-self: start; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .nav-inner { height: 60px; }
  .nav-links a:not(.btn) { display: none; }
  .brand-sub { display: none; }
  .hero { padding: 56px 0 72px; }
  .lead { font-size: 16px; }
  .route { padding: 24px 20px 20px; }
  .stop { font-size: 15px; }
  .block, .contact { padding: 64px 0; }
  .faq-block { padding-top: 0; }
  .bubble { font-size: 16px; }
  .bubble:nth-child(even) { margin-left: 24px; }
  .service-head h3 { font-size: 28px; }
  .steps { grid-template-columns: 1fr; }
  details p { padding-right: 0; }
  .contact-mail { margin-top: 24px; }
  .qr { text-align: left; }
  .qr img { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .route-stops::after { animation: none; transform: scaleY(1); }
  .stop::before { animation: none; background: var(--mark); box-shadow: inset 0 0 0 4px var(--mark); }
}