/* Clean Trough home page v2 — 2026-10-01
   Design read: redesign (overhaul of visuals, preserve pages/slugs/nav) of a small agricultural-equipment site,
   read on phones by sheep and cattle producers; industrial / practical / premium language; native CSS,
   self-hosted OFL fonts, photography-led. One memorable element: the big yearly-cost figure. No decoration.
   Retired from v1: eyebrow caps labels above every heading, identical rounded cards, Inter via Google Fonts. */

@font-face { font-family: "Big Shoulders"; src: url("fonts/BigShoulders-Bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Big Shoulders"; src: url("fonts/BigShoulders-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("fonts/InstrumentSans-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("fonts/InstrumentSans-Bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("fonts/InstrumentSans-Italic.ttf") format("truetype"); font-weight: 400; font-style: italic; font-display: swap; }

:root {
  --ink: #1b2420;        /* near-black with a green cast, body text */
  --steel: #5b6a63;      /* galvanised grey, secondary text and rules */
  --rule: #d9ded9;
  --stone: #f3f4f1;      /* cool stone background, not cream */
  --paddock: #14532d;    /* brand green, kept from v1 */
  --paddock-deep: #0e3a20;
  --water: #0e7490;      /* clean water, kept from v1; links and the one accent */
  --max: 1080px;
  --display: "Big Shoulders", "Arial Narrow", Impact, sans-serif;
  --body: "Instrument Sans", Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #fff; color: var(--ink); font-family: var(--body); font-size: 17px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
img, video { max-width: 100%; display: block; }
a { color: var(--water); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: .98; letter-spacing: .005em; margin: 0 0 14px; text-transform: none; }
h1 { font-size: clamp(44px, 9vw, 84px); }
h2 { font-size: clamp(34px, 6.4vw, 56px); }
h3 { font-size: 26px; }
p { margin: 0 0 14px; max-width: 34em; }            /* ≈ 70 characters per line */
.lead { font-size: 19px; color: var(--steel); }

/* header: kept from v1 behaviour (app.js injects it) but restyled */
.site-head { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--rule); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 700; font-size: 24px; letter-spacing: .02em; }
.logo-mark { width: 28px; height: 28px; background: var(--paddock); position: relative; }
.logo-mark::after { content: ""; position: absolute; left: 6px; right: 6px; bottom: 7px; height: 7px; border: 2px solid #fff; border-top: 0; }
.nav { display: flex; gap: 24px; align-items: center; }
.nav a { color: var(--ink); text-decoration: none; font-size: 15px; }
.nav a.on { color: var(--water); }
.nav a.btn, .nav a.btn:hover { color: #fff; }   /* 顶栏按钮: .nav a 的深色字会盖掉 .btn 的白字(10/1 Jack 截图指出看不清) */
.menu-btn { display: none; background: none; border: 0; font-size: 26px; cursor: pointer; color: var(--ink); }
@media (max-width: 860px) {
  .menu-btn { display: block; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 16px 20px 24px; gap: 16px; border-bottom: 1px solid var(--rule); }
  .nav.open { display: flex; }
}

/* buttons: square-cornered, solid — equipment, not an app */
.btn { display: inline-block; background: var(--paddock); color: #fff; text-decoration: none; padding: 14px 22px; font-weight: 700; font-size: 16px; border: 2px solid var(--paddock); cursor: pointer; }
.btn:hover { background: var(--paddock-deep); border-color: var(--paddock-deep); }
.btn.ghost { background: transparent; color: var(--paddock); }
.btn.light { background: #fff; color: var(--paddock); border-color: #fff; }
.btn.light.ghost { background: transparent; color: #fff; border-color: #fff; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

/* hero: the product in its world, headline on top */
.hero { position: relative; color: #fff; background: var(--paddock-deep); padding: 0; }   /* section padding would show as a dark band above the photo */
.hero img { width: 100%; height: min(78vh, 720px); object-fit: cover; object-position: 60% 60%; opacity: .96; }
.hero .over { position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,28,18,.94) 0%, rgba(10,28,18,.55) 42%, rgba(10,28,18,0) 72%); display: flex; align-items: flex-end; }
.hero .over .wrap { padding-bottom: 32px; }
.hero h1 { color: #fff; max-width: 9em; }
.hero .lead { color: #dfe8e2; max-width: 30em; }

/* sections */
section { padding: 56px 0; }
.stone { background: var(--stone); }
.sec-head { max-width: 30em; margin-bottom: 22px; }

/* problem */
.problem .photo { border-top: 4px solid var(--paddock); max-width: 680px; }
@media (min-width: 900px) { .problem .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; } .problem .sec-head, .problem blockquote { grid-column: 1; } .problem .photo { grid-column: 2; grid-row: 1 / span 2; } }
.problem blockquote { margin: 18px 0 0; padding-left: 16px; border-left: 3px solid var(--water); color: var(--steel); font-style: italic; max-width: 32em; }
.problem blockquote cite { display: block; font-style: normal; font-size: 14px; margin-top: 6px; }

/* video + three steps from the footage */
.player { position: relative; background: #000; max-width: 420px; }
.player video { width: 100%; height: auto; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 18px; max-width: 640px; }
.steps figure { margin: 0; }
.steps img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.steps figcaption { font-size: 14px; line-height: 1.3; margin-top: 8px; }
.steps figcaption b { font-family: var(--display); font-size: 20px; color: var(--water); margin-right: 6px; }

/* benefits: a specification-style list, not cards */
.spec { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); max-width: 640px; }
.spec li { display: grid; grid-template-columns: 1fr; gap: 2px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.spec b { font-family: var(--display); font-size: 24px; font-weight: 700; letter-spacing: .01em; }
.spec span { color: var(--steel); }
@media (min-width: 640px) { .spec li { grid-template-columns: 220px 1fr; gap: 20px; align-items: baseline; } }
.units { display: grid; grid-template-columns: 1fr; gap: 16px; align-items: center; margin-top: 28px; }
.units img { background: var(--stone); }
.units p { color: var(--steel); font-size: 15px; }
@media (min-width: 760px) { .units { grid-template-columns: 1.3fr 1fr; } }

/* the one memorable element */
.cost { background: var(--paddock); color: #fff; }
.cost .wrap { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: center; }
.cost img { width: 100%; height: 260px; object-fit: cover; object-position: 50% 30%; }
.cost .figure { font-family: var(--display); font-weight: 700; font-size: clamp(64px, 16vw, 132px); line-height: .9; letter-spacing: -.005em; }
.cost .figure small { display: block; font-size: clamp(22px, 5vw, 30px); letter-spacing: .03em; margin: 10px 0 18px; }
.cost p { color: #d7e5dc; max-width: 32em; }
@media (min-width: 760px) { .cost .wrap { grid-template-columns: 1fr 1fr; } .cost img { height: 380px; } }

/* trial */
.trial .wrap { display: grid; grid-template-columns: 1fr; gap: 20px; align-items: center; }
.trial img { width: 100%; height: 240px; object-fit: cover; }
@media (min-width: 760px) { .trial .wrap { grid-template-columns: 1fr 1fr; } .trial img { height: 360px; } }

/* contact strip + agents line */
.contact { border-top: 1px solid var(--rule); }
.contact .phone { font-family: var(--display); font-size: clamp(34px, 8vw, 52px); font-weight: 700; color: var(--paddock); text-decoration: none; display: inline-block; margin: 6px 0; }
.agents-line { font-size: 15px; color: var(--steel); margin-top: 26px; padding-top: 16px; border-top: 1px solid var(--rule); }

/* footer (injected by app.js) */
.site-foot { border-top: 1px solid var(--rule); padding: 30px 0 40px; font-size: 14px; color: var(--steel); }
.site-foot .wrap { display: grid; gap: 14px; }
.small { font-size: 14px; color: var(--steel); }

/* ===== inner pages (added 2026-10-01 for the site-wide switch) ===== */
.page-hero { padding: 44px 0 24px; border-bottom: 1px solid var(--rule); }
.page-hero h1 { max-width: 11em; }
.page-hero.product .wrap { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: center; }
.page-hero.product img { background: var(--stone); }
@media (min-width: 860px) { .page-hero.product .wrap { grid-template-columns: 1.1fr .9fr; gap: 40px; } }
.center { text-align: center; }
.center p { margin-left: auto; margin-right: auto; }

/* numbered or plain blocks replacing the card grid */
.blocks { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--rule); max-width: 760px; }
.blocks > div { padding: 22px 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 14px; align-items: start; }
.blocks > div > * { min-width: 0; }
.blocks .num { font-family: var(--display); font-size: 40px; font-weight: 700; color: var(--water); line-height: 1; grid-row: 1 / span 2; }
.blocks h3, .blocks p { grid-column: 2; }
.blocks h3 { margin: 2px 0 6px; }
.blocks p { margin: 0; color: var(--steel); }
.blocks.plain > div { grid-template-columns: 1fr; }

.split { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; }
.split > * { min-width: 0; }
@media (min-width: 860px) { .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; } }
.split img { max-width: 100%; }
@media (min-width: 860px) { .split img { max-width: 560px; } }

.list-check { list-style: none; padding: 0; margin: 0; max-width: 34em; }
.list-check li { padding-left: 22px; position: relative; margin-bottom: 10px; }
.list-check li::before { content: ""; position: absolute; left: 0; top: 10px; width: 10px; height: 10px; background: var(--water); }

.split img.tall { max-height: 420px; object-fit: cover; }
table.spec { width: 100%; max-width: 760px; border-collapse: collapse; border-top: 2px solid var(--ink); }
table.spec th, table.spec td { text-align: left; padding: 12px 10px 12px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
table.spec th { width: 36%; color: var(--steel); font-weight: 400; padding-right: 16px; }

/* calculator */
.calc { display: grid; grid-template-columns: 1fr; gap: 28px; max-width: 980px; }
@media (min-width: 860px) { .calc { grid-template-columns: 1fr 1fr; } }
.calc .panel { border-top: 2px solid var(--ink); padding-top: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; font-size: 15px; }
.field .hint { color: var(--steel); font-size: 14px; margin-top: 4px; }
input, select, textarea { width: 100%; font: inherit; padding: 12px 14px; border: 2px solid var(--rule); background: #fff; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--water); }
.calc .panel.result { background: var(--paddock); color: #fff; border-top: 0; padding: 22px 22px 24px; }
.result .big { font-family: var(--display); font-size: 56px; font-weight: 700; line-height: 1; margin: 4px 0 2px; }
.result .label { color: #cfe3d6; font-size: 15px; }
.result .rowr { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.result .rowr:last-of-type { border-bottom: 0; }
.result .note { font-size: 14px; color: #d7e5dc; margin-top: 14px; max-width: none; }
.result a { color: #fff; }

/* forms */
.form { max-width: 760px; border-top: 2px solid var(--ink); padding-top: 22px; }
.form .two { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 640px) { .form .two { grid-template-columns: 1fr 1fr; } }
.hp { position: absolute; left: -9999px; }
.form-msg { margin-top: 14px; font-weight: 700; }
.form-msg.ok { color: var(--paddock); }
.form-msg.err { color: #b42318; }

/* contact page */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 22px; max-width: 760px; }
.contact-grid > div { border-top: 2px solid var(--ink); padding-top: 12px; }
.contact-grid h3 { margin-bottom: 4px; }
.contact-grid a { font-size: 19px; }
@media (min-width: 640px) { .contact-grid { grid-template-columns: 1fr 1fr 1fr; } }

/* ===== desktop balance (2026-10-01, Jack: 视频那一节在电脑上偏左、右边空) ===== */
@media (min-width: 900px) {
  /* 视频一节: 左视频, 右标题+三步竖排 */
  .watch .wrap { display: grid; grid-template-columns: 380px minmax(0, 1fr); column-gap: 56px; align-items: start; }
  .watch .player { grid-column: 1; grid-row: 1 / span 2; max-width: 380px; }
  .watch .sec-head { grid-column: 2; grid-row: 1; margin-bottom: 8px; }
  .watch .steps { grid-column: 2; grid-row: 2; grid-template-columns: 1fr; gap: 0; margin-top: 0; max-width: 560px; border-top: 1px solid var(--rule); }
  .watch .steps figure { display: grid; grid-template-columns: 132px minmax(0, 1fr); gap: 20px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--rule); }
  .watch .steps figcaption { font-size: 19px; margin-top: 0; }
  .watch .steps figcaption b { font-size: 30px; display: block; margin-bottom: 2px; }
  /* 好处清单与实拍并排 */
  .get .wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); column-gap: 56px; align-items: start; }
  .get .sec-head { grid-column: 1 / -1; }
  .get .units { grid-template-columns: 1fr; margin-top: 0; }
  /* 联系一节: 电话与代理说明并排 */
  .contact .wrap { display: grid; grid-template-columns: 1fr 1fr; column-gap: 56px; align-items: end; }
  .contact .wrap > h2, .contact .wrap > .phone, .contact .wrap > p:not(.agents-line) { grid-column: 1; }
  .contact .agents-line { grid-column: 2; grid-row: 1 / span 3; align-self: center; border-top: 0; border-left: 1px solid var(--rule); padding: 8px 0 8px 28px; margin-top: 0; font-size: 17px; }
  /* 内页: 三步/三块并排, 表单与清单不再孤零零靠左 */
  .blocks { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 36px; max-width: none; border-top: 2px solid var(--ink); }
  .blocks > div { border-bottom: 0; }
  .page-hero .lead { max-width: 38em; }
  .contact-grid { max-width: none; }
}

.flush-list { margin-top: 18px; }
@media (min-width: 900px) { .watch .flush-list { grid-column: 2; grid-row: 2; margin-top: 0; } .watch .flush-list li { font-size: 18px; margin-bottom: 14px; } }
@media (min-width: 900px) {
  .watch .wrap { grid-template-rows: auto 1fr; }      /* 标题贴着清单, 不被视频高度撑开 */
  table.spec { max-width: none; }
  table.spec th { width: 30%; }
  .form { max-width: none; }
}

/* 规格: 三组, 每组只有一条顶线(不再每行一条线) */
.spec-groups { display: grid; grid-template-columns: 1fr; gap: 28px; }
.spec-groups > div { border-top: 2px solid var(--ink); padding-top: 14px; }
.spec-groups h3 { margin: 0 0 12px; }
.spec-groups dl { margin: 0; }
.spec-groups dt { color: var(--steel); font-size: 14px; margin-top: 12px; }
.spec-groups dd { margin: 2px 0 0; font-size: 17px; }
@media (min-width: 900px) { .spec-groups { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 40px; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }

/* ===== 首页重排 (2026-10-01, Jack msg 7781: 简洁大方, 手机一眼看懂省人工/省时间/出门不担心) ===== */
.benefits { padding: 36px 0 44px; }
.benefits ul { list-style: none; margin: 0; padding: 0; }
.benefits li { padding: 22px 0; border-bottom: 1px solid var(--rule); }
.benefits li:last-child { border-bottom: 0; }
.benefits h2 { color: var(--paddock); font-size: clamp(36px, 9vw, 52px); margin-bottom: 8px; }
.benefits p { font-size: 19px; margin: 0; max-width: 28em; }
.foul img { width: 100%; max-height: 440px; object-fit: cover; }
.foul blockquote { margin: 16px 0 0; padding-left: 16px; border-left: 3px solid var(--water); color: var(--steel); font-style: italic; max-width: 34em; }
.foul blockquote cite { display: block; font-style: normal; font-size: 14px; margin-top: 6px; }
.trial-band { position: relative; padding: 0; color: #fff; background: var(--paddock-deep); }
.trial-band > img { width: 100%; height: 520px; object-fit: cover; }
.trial-band .over { position: absolute; inset: 0; display: flex; align-items: flex-end; background: linear-gradient(to top, rgba(10,28,18,.95) 0%, rgba(10,28,18,.78) 45%, rgba(10,28,18,.15) 85%); }
.trial-band .over .wrap { width: 100%; padding-bottom: 36px; }
.trial-band h2 { color: #fff; max-width: 12em; }
.trial-band p { color: #e3ebe6; max-width: 30em; font-size: 18px; }
.trial-band .btn { margin-top: 8px; }
.facts .wrap { display: grid; grid-template-columns: 1fr; gap: 24px; }
.facts .units { margin-top: 0; }
.facts .spec { max-width: none; }
@media (min-width: 900px) {
  .benefits li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 56px; align-items: center; padding: 26px 0; }
  .benefits h2 { margin: 0; }
  .foul .wrap { display: grid; grid-template-columns: minmax(0, 1fr); }
  .foul .sec-head { max-width: 36em; }
  .foul img { max-height: 460px; }
  .trial-band > img { height: 460px; }
  .facts .wrap { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); column-gap: 56px; align-items: center; }
}
.facts .units { display: block; }
.facts .units img { width: 100%; }

/* 可信度四条 (Codex 建议 4, 2026-10-01) */
.proof { padding: 40px 0; }
.proof ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr; gap: 0; }
.proof li { padding: 14px 0; border-top: 1px solid var(--rule); }
.proof li:first-child { border-top: 0; padding-top: 0; }
.proof b { display: block; font-family: var(--display); font-size: 24px; line-height: 1.05; }
.proof span { color: var(--steel); font-size: 16px; }
@media (min-width: 900px) { .proof ul { grid-template-columns: 1fr 1fr; column-gap: 56px; } .proof li:nth-child(2) { border-top: 0; padding-top: 0; } }
.result .mid { font-family: var(--display); font-size: 36px; font-weight: 700; line-height: 1; margin: 4px 0 2px; }
.result .plain { color: #fff; font-weight: 700; margin: 16px 0 12px; max-width: none; }
/* 视频大播放按钮 */
.play-big { position: absolute; inset: 0; width: 100%; border: 0; padding: 0; cursor: pointer; color: #fff; font-family: var(--body); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; background: linear-gradient(to top, rgba(10,28,18,.72) 0%, rgba(10,28,18,.28) 55%, rgba(10,28,18,.18) 100%); }
.play-big .disc { width: 96px; height: 96px; border-radius: 50%; background: #fff; display: grid; place-items: center; box-shadow: 0 6px 24px rgba(10,28,18,.45); transition: transform .15s ease; }
.play-big .tri { width: 0; height: 0; border-style: solid; border-width: 18px 0 18px 30px; border-color: transparent transparent transparent var(--paddock); margin-left: 7px; }
.play-big .txt { font-weight: 700; font-size: 20px; text-align: center; text-shadow: 0 1px 6px rgba(0,0,0,.5); }
.play-big .txt small { display: block; font-weight: 400; font-size: 15px; margin-top: 2px; }
.play-big:hover .disc, .play-big:focus-visible .disc { transform: scale(1.06); }
.play-big:focus-visible { outline: 3px solid #fff; outline-offset: -6px; }