/* Yonder 官网 · v4
   Built from the design canvas "Yonder 官网设计". No external resources, no inline styles (CSP: style-src 'self'). */

@font-face { font-family: "Yonder Serif SC"; src: url("/assets/fonts/yonder-serif-sc-600.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("/assets/fonts/newsreader-500.woff2") format("woff2"); font-weight: 500 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("/assets/fonts/newsreader-500-italic.woff2") format("woff2"); font-weight: 500 600; font-style: italic; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("/assets/fonts/instrument-sans-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("/assets/fonts/instrument-sans-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("/assets/fonts/instrument-sans-600.woff2") format("woff2"); font-weight: 600 700; font-display: swap; }

:root {
  --paper: #F3F1EB;
  --sand: #E9E4D9;
  --ink: #1F1C18;
  --ink-2: #5A5349;
  --line: #D6CFC2;
  --accent: #9F513A;
  --accent-hover: #88432F;
  --accent-light: #E3A07C;
  --dark: #1D2521;
  --dark-ink: #EDEBE4;
  --dark-ink-2: #B6BDB4;
  --ok: #A9D0A2;
  --error: #B3261E;
  --error-ink: #8C1D18;
  --error-bg: #F9E4E1;
  --sans-en: "Instrument Sans", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --sans-zh: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Noto Sans SC", "Microsoft YaHei", "Instrument Sans", system-ui, sans-serif;
  --serif: "Newsreader", "Yonder Serif SC", "Noto Serif CJK SC", "Songti SC", "STSong", Georgia, serif;
  --gutter: clamp(16px, 5vw, 120px);
  --section-gap: clamp(88px, 11vw, 170px);
  --header-h: 84px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 12px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans-zh); font-size: 16px; line-height: 1.6; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
html[lang="en"] body { font-family: var(--sans-en); }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
h1, h2, h3, p { font-kerning: normal; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 4px; }
.on-dark :focus-visible, .hero :focus-visible, .site-header:not(.is-solid) :focus-visible { outline-color: #FFFFFF; }
.sprite { display: none; }
.icon { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.icon--fill { fill: currentColor; stroke: none; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: #FFFFFF; padding: 10px 16px; border-radius: 8px; text-decoration: none; }
.skip-link:focus { top: 12px; color: #FFFFFF; }
.nowrap { display: inline-block; }
.container { width: min(1200px, 100% - 2 * var(--gutter)); margin-inline: auto; }
/* Placeholders that must be filled before launch. QA: `grep -rn 'class="todo"' site/` must return nothing. */
.todo { background: #FFF1B8; color: #5C4300; padding: 0 5px; border-radius: 4px; font-weight: 600; -webkit-box-decoration-break: clone; box-decoration-break: clone; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 54px; padding: 0 32px; border: 0; border-radius: 999px; font: inherit; font-size: 17px; font-weight: 600; line-height: 1; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color .15s ease, box-shadow .15s ease, color .15s ease; }
.btn-primary { background: var(--accent); color: #FFFFFF; box-shadow: 0 6px 18px rgba(70, 30, 14, .22); }
.btn-primary:hover { background: var(--accent-hover); color: #FFFFFF; }
.btn-primary[disabled] { background: #A6705D; box-shadow: none; cursor: default; }
.btn-ghost-light { background: rgba(255, 255, 255, .06); color: #FFFFFF; border: 1px solid rgba(255, 255, 255, .62); padding: 0 28px 0 22px; }
.btn-ghost-light:hover { background: rgba(255, 255, 255, .16); color: #FFFFFF; }
.btn-text { height: 48px; padding: 0 16px; border: 0; background: transparent; color: var(--ink-2); font: inherit; font-size: 15px; white-space: nowrap; cursor: pointer; border-radius: 999px; }
.btn-text:hover { color: var(--ink); background: rgba(31, 28, 24, .05); }

/* ---------- header ---------- */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--header-h); color: #FFFFFF; transition: background-color .2s ease, box-shadow .2s ease, color .2s ease; }
.site-header.is-solid { background: rgba(243, 241, 235, .94); color: var(--ink); box-shadow: 0 1px 0 rgba(31, 28, 24, .06), 0 8px 24px rgba(40, 30, 20, .08); -webkit-backdrop-filter: saturate(1.2) blur(10px); backdrop-filter: saturate(1.2) blur(10px); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-inline: clamp(16px, 3.9vw, 56px); }
.brand { display: flex; align-items: center; gap: 12px; min-height: 44px; color: inherit; text-decoration: none; }
.brand:hover { color: inherit; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.brand span { font-family: var(--sans-en); font-size: 21px; font-weight: 600; letter-spacing: .01em; }
.header-nav { display: flex; align-items: center; gap: 36px; }
.nav-links { display: flex; gap: 30px; margin: 0; padding: 0; list-style: none; font-size: 15px; }
.nav-links a { color: inherit; opacity: .9; text-decoration: none; }
.nav-links a:hover { opacity: 1; color: inherit; }
.lang-switch { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.lang-switch [aria-current] { font-weight: 600; }
.lang-switch .sep { opacity: .6; }
.lang-switch a { display: flex; align-items: center; min-height: 44px; color: inherit; opacity: .82; text-decoration: none; }
.lang-switch a:hover { opacity: 1; color: inherit; }
.header-cta { height: 44px; padding: 0 22px; font-size: 15px; background: rgba(255, 255, 255, .1); color: #FFFFFF; border: 1px solid rgba(255, 255, 255, .6); box-shadow: none; }
.header-cta:hover { background: rgba(255, 255, 255, .2); color: #FFFFFF; }
.site-header.is-solid .header-cta { background: var(--accent); border-color: var(--accent); color: #FFFFFF; }
.site-header.is-solid .header-cta:hover { background: var(--accent-hover); }
@media (max-width: 959px) { .nav-links { display: none; } .header-nav { gap: 24px; } }
@media (max-width: 719px) {
  :root { --header-h: 64px; }
  .header-cta { display: none; }
  .brand { gap: 10px; }
  .brand img { width: 30px; height: 30px; border-radius: 7px; }
  .brand span { font-size: 18px; }
}

/* ---------- hero ---------- */
.hero { position: relative; height: clamp(620px, 50vw + 140px, 880px); overflow: hidden; background: #33392F; color: #FFFFFF; }
.hero-bg, .hero-bg img, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-bg img { object-fit: cover; object-position: center 45%; }
.hero--lake .hero-bg img { object-position: center 40%; }
.hero--flowers .hero-bg img { object-position: center 28%; }
.hero-shade { background: rgba(12, 18, 14, .36); }
.hero--lake .hero-shade { background: rgba(12, 18, 14, .24); }
.hero--flowers .hero-shade { background: rgba(12, 18, 14, .26); }
.hero-content { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; padding: clamp(146px, 15vw, 216px) 16px 0; text-align: center; }
.hero-title { margin: 0; font-family: var(--serif); font-weight: 600; font-size: clamp(44px, 5.83vw, 84px); line-height: 1.2; letter-spacing: .06em; font-feature-settings: "palt"; text-shadow: 0 2px 30px rgba(0, 0, 0, .3); }
html[lang="en"] .hero-title { max-width: 1000px; font-style: italic; font-weight: 500; font-size: clamp(34px, 4.6vw, 66px); line-height: 1.14; letter-spacing: -.01em; text-wrap: balance; }
.hero-sub { margin: 38px 0 0; font-size: clamp(17px, 1.53vw, 22px); line-height: 1.6; font-weight: 500; text-shadow: 0 1px 14px rgba(0, 0, 0, .3); text-wrap: balance; }
.hero-actions { display: flex; gap: 14px; margin-top: 36px; }
.hero-status { margin: 20px 0 0; font-size: 14px; color: rgba(255, 255, 255, .86); }
@media (max-width: 719px) {
  html[lang="en"] .hero-content { padding-top: 134px; }
  .hero-sub { margin-top: 26px; }
  .hero-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; width: min(358px, 100%); margin-top: 26px; }
  .hero-actions .btn { height: 50px; padding: 0 10px; font-size: 16px; gap: 8px; }
  html[lang="en"] .hero-actions .btn { font-size: 15px; gap: 6px; }
  .hero-status { margin-top: 16px; font-size: 13px; }
}

/* ---------- screenshots: whole window + its shadow; the box is the visible window rect ---------- */
.shot { position: relative; width: 100%; aspect-ratio: var(--ww) / var(--wh); }
.shot > img { position: absolute; left: calc(var(--wx) / var(--ww) * -100%); top: calc(var(--wy) / var(--wh) * -100%); width: calc(var(--nw) / var(--ww) * 100%); max-width: none; height: auto; }
.shot--1600 { --nw: 2784; --nh: 1824; --wx: 112; --wy: 76; --ww: 2560; --wh: 1600; }
.shot--1654 { --nw: 2784; --nh: 1878; --wx: 112; --wy: 76; --ww: 2560; --wh: 1654; }
.shot--picker { --nw: 1660; --nh: 1528; --wx: 112; --wy: 76; --ww: 1436; --wh: 1304; }
.caption { margin: 0; font-size: 14px; line-height: 1.5; color: var(--ink-2); }

/* ---------- demo video ---------- */
.demo { position: relative; z-index: 2; margin-top: calc(-1 * clamp(104px, 17vw, 250px)); padding-inline: var(--gutter); }
.demo-figure { width: min(1120px, 100%); margin: 0 auto; }
.demo-figure .caption { margin-top: clamp(40px, 5.3vw, 76px); text-align: center; }
.video-frame { overflow: visible; }
/* When the exported 16:9 video and its poster frame arrive (HANDOFF.md §6), swap the cover markup to this frame. */
.video-frame--169 { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-radius: 14px; background: #000000; box-shadow: 0 24px 60px rgba(40, 30, 20, .22); }
.video-frame--169 > img { width: 100%; height: 100%; object-fit: cover; }
.video-frame--169 .demo-video { border-radius: 0; }
.video-frame .demo-video { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; background: #000000; object-fit: contain; border-radius: 1.2% / 1.9%; }
.play { position: absolute; left: 2.5%; top: 80.9%; z-index: 3; display: flex; align-items: center; gap: 14px; height: 64px; padding: 0 26px 0 8px; border: 0; border-radius: 999px; background: rgba(31, 28, 24, .86); color: #FFFFFF; font: inherit; cursor: pointer; box-shadow: 0 10px 28px rgba(0, 0, 0, .22); }
.play:hover { background: var(--ink); }
.play-icon { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 50%; background: var(--paper); color: var(--ink); }
.play-label { font-size: 16px; font-weight: 600; }
.play-dur { font-size: 15px; color: rgba(255, 255, 255, .72); font-variant-numeric: tabular-nums; }
@media (max-width: 719px) {
  .play { left: 50%; top: 50%; width: 56px; height: 56px; padding: 0; justify-content: center; border-radius: 50%; transform: translate(-50%, -50%); }
  .play-icon { width: auto; height: auto; background: none; color: #FFFFFF; }
  .play-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .play-dur { display: none; }
}

/* ---------- common section type ---------- */
.section { padding-top: var(--section-gap); }
.kicker { display: flex; align-items: center; gap: 10px; margin: 0; font-size: 13px; font-weight: 600; letter-spacing: .16em; color: var(--accent); }
.kicker::before { content: ""; flex: none; width: 11px; height: 11px; border-radius: 50%; border: 2px solid currentColor; }
html[lang="en"] .kicker { letter-spacing: .12em; text-transform: uppercase; }
.h2 { margin: 22px 0 0; font-size: clamp(29px, 2.92vw, 42px); line-height: 1.26; font-weight: 600; letter-spacing: .01em; text-wrap: balance; }
html[lang="en"] .h2 { font-size: clamp(28px, 2.78vw, 40px); letter-spacing: -.015em; }
.lead { margin: 24px 0 0; font-size: clamp(16px, 1.25vw, 18px); line-height: 1.85; color: var(--ink-2); }
html[lang="en"] .lead { line-height: 1.65; }
.note { display: flex; align-items: flex-start; gap: 10px; margin: 28px 0 0; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.note .icon { color: var(--accent); margin-top: 1px; }
@media (max-width: 719px) { .h2 { margin-top: 18px; } .lead { margin-top: 16px; } .note { margin-top: 20px; font-size: 14px; } }

/* ---------- import (P1) ---------- */
.import .container { display: grid; grid-template-columns: 380px minmax(0, 1fr); column-gap: 80px; align-items: center; }
.import-visual .dialog { width: 81.08%; }
.picker-wrap { position: relative; width: 40.54%; margin: -30.41% 0 0 auto; }
.picker-wrap .caption { margin-top: 36px; text-align: right; }
@media (max-width: 1099px) {
  .import .container { grid-template-columns: 1fr; row-gap: 36px; }
  .import-visual .dialog { width: 100%; }
  .picker-wrap { width: 70%; margin-top: -11%; }
  .picker-wrap .caption { margin-top: 30px; font-size: 13px; }
}

/* ---------- privacy (P2) ---------- */
.privacy { margin-top: var(--section-gap); padding-block: clamp(80px, 9.7vw, 140px); background: var(--dark); color: var(--dark-ink); }
.privacy .container { display: grid; grid-template-columns: 420px minmax(0, 1fr); column-gap: 80px; align-items: center; }
.privacy .kicker { color: var(--accent-light); }
.privacy .h2 { color: #FFFFFF; }
.privacy .lead { color: var(--dark-ink-2); }
.privacy-link { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; margin-top: 30px; font-size: 16px; font-weight: 600; color: var(--accent-light); text-decoration: none; }
.privacy-link:hover { color: #FFFFFF; }
.zones { display: grid; grid-template-columns: minmax(0, 1fr) 128px minmax(0, 1fr); align-items: stretch; }
.zone { display: flex; flex-direction: column; gap: 22px; padding: 28px 26px; border: 1px solid rgba(237, 235, 228, .32); border-radius: 20px; background: rgba(255, 255, 255, .035); }
.zone--net { border: 1.5px dashed rgba(237, 235, 228, .42); background: transparent; }
.zone-title { display: flex; align-items: center; gap: 10px; margin: 0; font-size: 17px; font-weight: 600; }
.zone-title .icon { width: 22px; height: 22px; }
.zone ul { display: flex; flex-direction: column; gap: 16px; margin: 0; padding: 0; list-style: none; }
.zone li { display: flex; align-items: center; gap: 12px; font-size: 16px; }
.zone li .icon { color: var(--dark-ink-2); }
.zone-rule { height: 1px; margin: 0; border: 0; background: rgba(237, 235, 228, .16); }
.zone-foot { margin: 0; font-size: 14px; line-height: 1.6; color: var(--dark-ink-2); }
.zone-foot--ok { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 500; color: var(--ok); }
.zone-foot--ok .icon { stroke-width: 2; }
.flows { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 34px; padding: 0 6px; }
.flow { display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 12.5px; line-height: 1.35; color: var(--dark-ink-2); text-align: center; }
.flow svg { color: var(--accent-light); fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.flow .v { display: none; }
.flow--in .h { transform: scaleX(-1); }
.flow--in .v { transform: scaleY(-1); }
@media (max-width: 1099px) { .privacy .container { grid-template-columns: 1fr; row-gap: 36px; } }
@media (max-width: 719px) {
  .zones { grid-template-columns: 1fr; }
  .zone { gap: 18px; padding: 22px 20px; border-radius: 18px; }
  .zone-title { font-size: 16px; }
  .zone ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
  .zone li { flex-direction: column; align-items: flex-start; gap: 8px; font-size: 14px; line-height: 1.35; }
  .flows { flex-direction: row; gap: 36px; padding: 14px 0; }
  .flow { flex-direction: row; gap: 8px; text-align: left; }
  .flow .h { display: none; }
  .flow .v { display: block; order: -1; }
  .privacy-link { margin-top: 22px; font-size: 15px; }
}

/* ---------- route animation (P3) ---------- */
.animation-head { display: flex; flex-direction: column; align-items: center; max-width: 760px; margin-inline: auto; text-align: center; }
.animation-head .lead { max-width: 640px; }
.anim-figure { width: min(1000px, 100%); margin: 72px auto 0; }
/* callouts: numbered markers by default, leader lines on wide screens */
.co { position: absolute; display: block; }
.co-route { --x: 21.09%; --y: 9.92%; }
.co-marker { --x: 17.5%; --y: 23.94%; }
.co-vehicle { --x: 44.22%; --y: 63.36%; }
.co-photo { --x: 96.64%; --y: 47.88%; --mx: 80.78%; --my: 41.35%; }
.co { left: var(--mx, var(--x)); top: var(--my, var(--y)); width: 22px; height: 22px; margin: -11px 0 0 -11px; border-radius: 50%; background: var(--ink); color: #FFFFFF; box-shadow: 0 0 0 2px #FFFFFF; font-size: 11px; font-weight: 700; line-height: 22px; text-align: center; }
.co::before { content: attr(data-n); }
.co-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.co-legend { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 16px; margin: 30px 0 0; padding: 0; list-style: none; }
.co-legend li { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.co-legend span { display: flex; align-items: center; justify-content: center; flex: none; width: 20px; height: 20px; border-radius: 50%; background: var(--ink); color: #FFFFFF; font-size: 11px; font-weight: 700; }
@media (min-width: 1320px) {
  .co { top: var(--y); width: auto; height: 1px; margin: 0; border-radius: 0; background: var(--ink); color: var(--ink); box-shadow: 0 0 0 1px rgba(255, 255, 255, .55); font-size: 14px; line-height: 22px; text-align: left; }
  .co::before { content: none; }
  .co::after { content: ""; position: absolute; top: -5px; width: 10px; height: 10px; border-radius: 50%; background: var(--ink); border: 2px solid #FFFFFF; box-sizing: border-box; }
  .co--left { left: -16px; width: calc(var(--x) + 16px); }
  .co--left::after { right: -5px; }
  .co--right { left: var(--x); width: calc(100% - var(--x) + 16px); }
  .co--right::after { left: -5px; }
  .co-label { top: -11px; width: auto; height: auto; overflow: visible; clip: auto; font-weight: 600; }
  .co--left .co-label { right: calc(100% + 8px); }
  .co--right .co-label { left: calc(100% + 8px); }
  .co-legend { display: none; }
}
.leg-row { display: grid; grid-template-columns: 640px minmax(0, 1fr); column-gap: 72px; align-items: center; margin-top: 128px; }
.leg-row h3 { margin: 0; font-size: 26px; line-height: 1.35; font-weight: 600; letter-spacing: .01em; }
html[lang="en"] .leg-row h3 { letter-spacing: -.01em; }
.leg-row p { margin: 14px 0 0; font-size: 17px; line-height: 1.75; color: var(--ink-2); }
@media (max-width: 1099px) {
  .animation-head { align-items: flex-start; margin: 0; text-align: left; }
  .anim-figure { margin-top: 32px; }
  .leg-row { grid-template-columns: 1fr; row-gap: 28px; margin-top: 56px; }
  .leg-row h3 { font-size: 20px; }
  .leg-row p { margin-top: 8px; font-size: 15px; line-height: 1.7; }
}

/* ---------- custom figure (P4) ---------- */
.custom { margin-top: var(--section-gap); padding-block: clamp(80px, 9.7vw, 140px) clamp(72px, 9vw, 130px); background: var(--sand); }
.custom .container { display: grid; grid-template-columns: 400px minmax(0, 1fr); grid-template-areas: "text visual" "settings visual"; column-gap: 80px; align-items: start; }
.custom-text { grid-area: text; }
.custom-visual { grid-area: visual; padding-bottom: 264px; }
.custom-settings { grid-area: settings; margin-top: 64px; }
.custom-settings .caption { margin-top: 40px; }
.ring { position: absolute; left: 18.75%; top: 46.55%; width: 11.72%; aspect-ratio: 1; border-radius: 50%; border: 2px solid var(--ink); box-shadow: 0 0 0 2px rgba(255, 255, 255, .7); }
.ring-line { position: absolute; left: calc(24.61% - .75px); top: 64.69%; width: 1.5px; height: calc(35.31% + 34px); background: var(--ink); }
.png-circle { position: absolute; left: calc(24.61% - 110px); top: calc(100% + 34px); display: grid; place-items: center; width: 220px; height: 220px; overflow: hidden; border: 5px solid var(--paper); border-radius: 50%; background: #FFFFFF; box-shadow: 0 14px 34px rgba(40, 30, 20, .26); }
.png-circle img { width: 94%; height: auto; }
.png-caption { position: absolute; left: calc(24.61% + 130px); top: calc(100% + 132px); margin: 0; font-size: 14px; color: var(--ink-2); white-space: nowrap; }
@media (max-width: 1099px) {
  .custom .container { grid-template-columns: 1fr; grid-template-areas: "text" "visual" "settings"; }
  .custom-visual { margin-top: 32px; }
  .custom-settings { max-width: 440px; margin-top: 8px; }
}
@media (max-width: 719px) {
  .custom-visual { padding-bottom: 198px; }
  .ring { border-width: 1.5px; box-shadow: 0 0 0 1.5px rgba(255, 255, 255, .7); }
  .ring-line { height: calc(35.31% + 40px); }
  .png-circle { left: calc(24.61% - 75px); top: calc(100% + 40px); width: 150px; height: 150px; border-width: 4px; background-size: 14px 14px; }
  .png-caption { left: calc(24.61% + 89px); right: 0; top: calc(100% + 95px); font-size: 13px; line-height: 1.5; white-space: normal; }
  .custom-settings { max-width: 300px; margin-top: 40px; }
  .custom-settings .caption { margin-top: 26px; font-size: 13px; }
}

/* ---------- selection + export (P5) ---------- */
.pair .container { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-areas: "ta tb" "sa sb"; column-gap: 48px; row-gap: 44px; align-items: start; }
.pair-a { grid-area: ta; } .pair-b { grid-area: tb; } .shot-a { grid-area: sa; } .shot-b { grid-area: sb; }
.pair h3 { margin: 20px 0 0; font-size: clamp(24px, 2.22vw, 32px); line-height: 1.3; font-weight: 600; letter-spacing: .01em; text-wrap: balance; }
html[lang="en"] .pair h3 { font-size: clamp(24px, 2.08vw, 30px); letter-spacing: -.01em; }
.pair p:not(.kicker) { max-width: 520px; margin: 18px 0 0; font-size: 17px; line-height: 1.8; color: var(--ink-2); }
html[lang="en"] .pair p:not(.kicker) { line-height: 1.6; }
@media (max-width: 899px) {
  .pair .container { grid-template-columns: 1fr; grid-template-areas: "ta" "sa" "tb" "sb"; row-gap: 28px; }
  .pair-b { margin-top: 60px; }
  .pair p:not(.kicker) { font-size: 16px; }
}

/* ---------- try (closing CTA) ---------- */
.try { position: relative; display: flex; flex-direction: column; align-items: center; min-height: 640px; margin-top: var(--section-gap); padding: 104px var(--gutter) 96px; overflow: hidden; background: #2F6FB8; }
.try-bg, .try-bg img { position: absolute; inset: 0; width: 100%; height: 100%; }
.try-bg img { object-fit: cover; object-position: center 42%; }
.try--flowers .try-bg img { object-position: center 30%; }
.try-title { position: relative; z-index: 1; margin: 0; font-family: var(--serif); font-size: clamp(38px, 4.17vw, 60px); line-height: 1.2; font-weight: 600; letter-spacing: .04em; color: #FFFFFF; text-align: center; text-shadow: 0 2px 26px rgba(0, 35, 80, .35); }
html[lang="en"] .try-title { font-weight: 500; letter-spacing: -.01em; }
.try-card { position: relative; z-index: 1; width: min(600px, 100%); margin-top: 40px; padding: 38px 44px 34px; border-radius: 24px; background: var(--paper); box-shadow: 0 24px 60px rgba(6, 28, 58, .3); text-align: center; }
.try-body { margin: 0; font-size: 17px; line-height: 1.85; color: var(--ink); }
html[lang="en"] .try-body { line-height: 1.65; }
.fine { margin: 18px 0 0; font-size: 14px; line-height: 1.55; color: var(--ink-2); }
@media (max-width: 719px) {
  .try { min-height: 0; padding: 92px 16px 0; background: none; }
  .try-bg { bottom: auto; height: 340px; background: #2F6FB8; }
  .try-card { margin-top: 82px; padding: 28px 22px 24px; border-radius: 20px; box-shadow: 0 18px 44px rgba(6, 28, 58, .26); }
  .try-body { font-size: 16px; line-height: 1.8; }
  .interest-idle .btn { width: 100%; height: 52px; font-size: 16px; }
  .fine { font-size: 13px; }
}

/* interest widget states */
.interest-idle { display: flex; flex-direction: column; align-items: center; margin-top: 28px; }
.interest-idle .fine { margin-top: 18px; }
.interest-panel { margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--line); text-align: left; }
.interest-panel h3 { margin: 0; font-size: 17px; font-weight: 600; outline: none; }
.interest-panel .ask { margin: 8px 0 0; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.interest-form { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.interest-form label { font-size: 13px; font-weight: 600; }
.interest-form input[type="email"] { width: 100%; height: 48px; padding: 0 14px; border: 1.5px solid #BDB4A5; border-radius: 12px; background: #FFFFFF; color: var(--ink); font: inherit; font-size: 16px; }
.interest-form input[type="email"]:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(31, 28, 24, .12); }
.interest-form input[aria-invalid="true"] { border-color: var(--error); }
.interest-form input[readonly] { background: #F7F5F0; }
.field-error { display: flex; align-items: center; gap: 6px; margin: -4px 0 0; font-size: 13px; color: var(--error); }
.field-error .icon { width: 16px; height: 16px; }
.interest-actions { display: flex; align-items: center; gap: 8px; }
.interest-actions .btn { height: 48px; padding: 0 22px; font-size: 16px; }
.spinner { display: none; width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.is-busy .spinner { display: block; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .is-busy .spinner { animation: none; } }
.fail-box { display: flex; align-items: flex-start; gap: 8px; padding: 10px 12px; border-radius: 10px; background: var(--error-bg); color: var(--error-ink); font-size: 14px; line-height: 1.55; }
.fail-box .icon { width: 18px; height: 18px; margin-top: 1px; }
.fail-hint { margin: 0; font-size: 13px; line-height: 1.55; color: var(--ink-2); }
.interest-panel .fine { margin: 4px 0 0; font-size: 13px; }
.interest-success { display: flex; align-items: flex-start; gap: 12px; margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--line); text-align: left; }
.interest-success .ok-badge { display: flex; align-items: center; justify-content: center; flex: none; width: 34px; height: 34px; border-radius: 50%; background: #E3EFDF; color: #2F6B34; }
.interest-success .ok-badge .icon { stroke-width: 2.2; }
.interest-success h3 { margin: 0; font-size: 17px; font-weight: 600; }
.interest-success p { margin: 6px 0 0; font-size: 15px; line-height: 1.6; color: var(--ink-2); overflow-wrap: anywhere; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
[hidden] { display: none !important; }

/* ---------- footer ---------- */
.site-footer { padding: 60px 0 52px; background: var(--sand); }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 32px; height: 32px; border-radius: 8px; }
.footer-brand span { font-family: var(--sans-en); font-size: 19px; font-weight: 600; }
.footer-links { display: flex; align-items: center; gap: 32px; font-size: 15px; }
.footer-links a { color: var(--ink); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }
.footer-contact { display: flex; align-items: center; gap: 10px; color: var(--ink-2); }
.footer-contact .icon { width: 18px; height: 18px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 13px; line-height: 1.6; color: var(--ink-2); }
.footer-bottom p { margin: 0; }
@media (max-width: 719px) {
  .site-footer { margin-top: 88px; padding: 44px 0 40px; }
  .footer-top { flex-direction: column; align-items: flex-start; gap: 22px; }
  .footer-links { flex-direction: column; align-items: flex-start; gap: 4px; }
  .footer-links > * { min-height: 44px; display: flex; align-items: center; }
  .footer-bottom { flex-direction: column; gap: 8px; margin-top: 20px; padding-top: 20px; font-size: 12.5px; }
}

/* ---------- simple pages (privacy, 404) ---------- */
.page { padding: calc(var(--header-h) + clamp(48px, 8vw, 96px)) 0 clamp(72px, 9vw, 120px); }
.page .container { max-width: 760px; }
.page h1 { margin: 0; font-size: clamp(30px, 3.2vw, 44px); line-height: 1.25; font-weight: 600; }
.page h2 { margin: 48px 0 0; font-size: 22px; line-height: 1.4; font-weight: 600; }
.page p, .page li { font-size: 17px; line-height: 1.85; color: var(--ink-2); }
html[lang="en"] .page p, html[lang="en"] .page li { line-height: 1.65; }
.page ul { padding-left: 1.2em; }
.draft-banner { margin: 24px 0 0; padding: 12px 16px; border-radius: 12px; background: #FFF1B8; color: #5C4300; font-size: 15px; line-height: 1.6; }
.page-back { display: inline-flex; margin-top: 40px; font-weight: 600; }

/* Current real-export assets and compact mobile supporting material. */
.video-frame--169 > img { display: block; object-fit: contain; }
.video-frame--169 .demo-video { border-radius: 0; }
.demo-figure .caption { margin-top: 24px; }
.png-circle img { position: absolute; inset: 8%; width: 84%; height: 84%; max-width: none; object-fit: contain; }
.ring { top: 50%; }
.preview-note { padding: 12px 16px; border: 1px solid currentColor; border-radius: 8px; font-size: 13px; line-height: 1.6; }
@media (max-width: 719px) {
  .leg-row .leg-copy { order: -1; }
  .pair .shot-b { display: none; }
}

.animation-after { display: block; text-wrap: balance; }
html[lang="zh-CN"] .animation-after { white-space: nowrap; }
.footer-registration { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px 16px; }
.footer-registration a { color: inherit; text-decoration: none; }
.footer-registration a:hover { text-decoration: underline; }
.page .page-updated { font-size: 14px; margin-top: 18px; }
.page-intro { padding-bottom: 24px; border-bottom: 1px solid var(--line); }
@media (max-width: 719px) { .footer-registration { justify-content: flex-start; } }