Build smart scale application

2026-07-28 11:55:24 +08:00
commit 316921762a
30 changed files with 19513 additions and 0 deletions
@@ -0,0 +1,86 @@
+import { headers } from "next/headers";
+import { redirect } from "next/navigation";
+
+export type ChatGPTUser = {
+  displayName: string;
+  email: string;
+  fullName: string | null;
+};
+
+const USER_EMAIL_HEADER = "oai-authenticated-user-email";
+const USER_FULL_NAME_HEADER = "oai-authenticated-user-full-name";
+const USER_FULL_NAME_ENCODING_HEADER =
+  "oai-authenticated-user-full-name-encoding";
+const PERCENT_ENCODED_UTF8 = "percent-encoded-utf-8";
+const SIGN_IN_PATH = "/signin-with-chatgpt";
+const SIGN_OUT_PATH = "/signout-with-chatgpt";
+const CALLBACK_PATH = "/callback";
+
+export async function getChatGPTUser(): Promise<ChatGPTUser | null> {
+  const requestHeaders = await headers();
+  const email = requestHeaders.get(USER_EMAIL_HEADER);
+  if (!email) return null;
+
+  const encodedFullName = requestHeaders.get(USER_FULL_NAME_HEADER);
+  const fullName =
+    encodedFullName &&
+    requestHeaders.get(USER_FULL_NAME_ENCODING_HEADER) === PERCENT_ENCODED_UTF8
+      ? safeDecodeURIComponent(encodedFullName)
+      : null;
+
+  return {
+    displayName: fullName ?? email,
+    email,
+    fullName,
+  };
+}
+
+export async function requireChatGPTUser(
+  returnTo: string,
+): Promise<ChatGPTUser> {
+  const user = await getChatGPTUser();
+  if (user) return user;
+
+  redirect(chatGPTSignInPath(returnTo));
+}
+
+export function chatGPTSignInPath(returnTo: string): string {
+  const safeReturnTo = safeRelativeReturnPath(returnTo);
+  return `${SIGN_IN_PATH}?return_to=${encodeURIComponent(safeReturnTo)}`;
+}
+
+export function chatGPTSignOutPath(returnTo = "/"): string {
+  const safeReturnTo = safeRelativeReturnPath(returnTo);
+  return `${SIGN_OUT_PATH}?return_to=${encodeURIComponent(safeReturnTo)}`;
+}
+
+function safeRelativeReturnPath(value: string): string {
+  if (!value.startsWith("/") || value.startsWith("//")) return "/";
+
+  let url: URL;
+  try {
+    url = new URL(value, "https://app.local");
+  } catch {
+    return "/";
+  }
+  if (url.origin !== "https://app.local") return "/";
+  if (isReservedAuthPath(url.pathname)) return "/";
+
+  return `${url.pathname}${url.search}${url.hash}`;
+}
+
+function isReservedAuthPath(pathname: string): boolean {
+  return (
+    pathname === SIGN_IN_PATH ||
+    pathname === SIGN_OUT_PATH ||
+    pathname === CALLBACK_PATH
+  );
+}
+
+function safeDecodeURIComponent(value: string): string | null {
+  try {
+    return decodeURIComponent(value);
+  } catch {
+    return null;
+  }
+}
@@ -0,0 +1,227 @@
+@import "tailwindcss";
+
+:root {
+  --ink: #17211d;
+  --muted: #66736c;
+  --line: #dfe6e1;
+  --green: #007f5f;
+  --green-dark: #005f48;
+  --mint: #dff5ed;
+  --paper: #f8faf8;
+  --cream: #f2f4ee;
+}
+
+* { box-sizing: border-box; }
+html { background: #dfe8e2; }
+body { margin: 0; color: var(--ink); font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif; }
+button, input { font: inherit; }
+button { cursor: pointer; }
+button:disabled { cursor: not-allowed; opacity: .55; }
+
+.app-shell {
+  min-height: 100vh;
+  padding: 28px;
+  display: grid;
+  place-items: center;
+  position: relative;
+  overflow: hidden;
+  background:
+    radial-gradient(circle at 75% 15%, rgba(234, 184, 90, .18), transparent 25%),
+    linear-gradient(145deg, #e9efeb, #cad9d0);
+}
+.ambient { position: absolute; border-radius: 50%; filter: blur(2px); opacity: .65; }
+.ambient-one { width: 460px; height: 460px; background: rgba(0, 127, 95, .08); left: -180px; bottom: -180px; }
+.ambient-two { width: 260px; height: 260px; border: 50px solid rgba(255,255,255,.3); right: -70px; top: 40px; }
+.device-frame {
+  width: min(1080px, 100%);
+  min-height: min(760px, calc(100vh - 56px));
+  position: relative;
+  z-index: 1;
+  display: flex;
+  flex-direction: column;
+  background: rgba(249, 251, 248, .96);
+  border: 1px solid rgba(255,255,255,.85);
+  border-radius: 28px;
+  box-shadow: 0 35px 90px rgba(28, 54, 42, .21), inset 0 1px #fff;
+  overflow: hidden;
+}
+.app-header { height: 74px; display: flex; align-items: center; justify-content: space-between; padding: 0 38px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.72); }
+.brand { display: flex; align-items: center; gap: 12px; border: 0; background: none; color: var(--ink); padding: 0; text-align: left; }
+.brand-mark { width: 40px; height: 40px; display: grid; place-items: center; background: var(--green); color: white; border-radius: 11px; font-size: 24px; font-weight: 900; transform: skew(-5deg); }
+.brand strong, .brand small { display: block; }
+.brand strong { font-size: 16px; letter-spacing: .04em; }
+.brand small { color: #88938d; font-size: 9px; margin-top: 3px; letter-spacing: .12em; }
+.status-pill { display: flex; gap: 8px; align-items: center; padding: 8px 13px; border-radius: 99px; background: #edf7f2; color: #236451; font-size: 12px; font-weight: 700; }
+.status-dot { width: 7px; height: 7px; background: #22a06b; border-radius: 50%; box-shadow: 0 0 0 4px rgba(34,160,107,.12); }
+.progress-strip { display: flex; gap: 36px; justify-content: center; padding: 17px 28px; border-bottom: 1px solid var(--line); color: #9aa39e; font-size: 12px; font-weight: 700; }
+.progress-item { display: flex; align-items: center; gap: 8px; }
+.progress-item span { width: 21px; height: 21px; display: grid; place-items: center; border: 1px solid #ccd4cf; border-radius: 50%; font-size: 10px; }
+.progress-item.active { color: var(--green); }
+.progress-item.active span { color: white; background: var(--green); border-color: var(--green); }
+.content { flex: 1; display: grid; }
+footer { min-height: 44px; display: flex; align-items: center; justify-content: space-between; padding: 0 38px; border-top: 1px solid var(--line); color: #94a098; font-size: 10px; letter-spacing: .04em; }
+
+.home-view { padding: 64px clamp(44px, 9vw, 110px) 44px; position: relative; background-image: linear-gradient(90deg, transparent 0 63%, rgba(0,127,95,.035) 63%); }
+.home-view::after { content: ""; position: absolute; right: 9%; top: 17%; width: 250px; height: 250px; border: 1px solid rgba(0,127,95,.13); border-radius: 50%; box-shadow: 0 0 0 35px rgba(0,127,95,.025), 0 0 0 72px rgba(0,127,95,.018); }
+.home-view::before { content: "kg"; position: absolute; right: calc(9% + 80px); top: calc(17% + 76px); z-index: 1; color: rgba(0,127,95,.7); font-size: 70px; font-weight: 200; letter-spacing: -.08em; }
+.eyebrow, .step-kicker { color: var(--green); font-size: 11px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
+.eyebrow { display: flex; align-items: center; gap: 8px; }
+.eyebrow span { width: 20px; height: 2px; background: #e5a63c; }
+h1 { font-size: clamp(48px, 6vw, 70px); line-height: 1.03; letter-spacing: -.06em; margin: 19px 0 24px; max-width: 590px; }
+h1 em { font-style: normal; color: var(--green); }
+.home-view > p { color: var(--muted); line-height: 1.85; font-size: 14px; }
+.primary-cta { margin-top: 30px; min-width: 360px; display: flex; align-items: center; gap: 15px; border: 0; border-radius: 14px; padding: 14px 18px; background: var(--green); color: white; box-shadow: 0 15px 32px rgba(0,127,95,.24); text-align: left; transition: .2s ease; }
+.primary-cta:hover { transform: translateY(-2px); background: var(--green-dark); }
+.primary-cta .cta-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 10px; background: rgba(255,255,255,.13); font-size: 21px; }
+.primary-cta strong, .primary-cta small { display: block; }
+.primary-cta strong { font-size: 16px; margin-bottom: 4px; }
+.primary-cta small { font-size: 10px; opacity: .68; }
+.primary-cta b { margin-left: auto; font-size: 21px; }
+.admin-link { margin-top: 15px; margin-left: 8px; border: 0; background: none; color: #68746e; font-size: 12px; }
+.admin-link:hover { color: var(--green); }
+.home-stats { margin-top: 46px; display: flex; gap: 42px; color: #849088; font-size: 10px; }
+.home-stats span { padding-left: 12px; border-left: 2px solid #e0e6e1; }
+.home-stats b { display: block; color: var(--ink); font-size: 13px; margin-bottom: 4px; }
+
+.panel-view { width: min(760px, calc(100% - 48px)); margin: 0 auto; padding: 35px 0; }
+.section-heading { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 24px; }
+.section-heading h2, .result-view h2 { margin: 7px 0 7px; font-size: 29px; letter-spacing: -.035em; }
+.section-heading p, .result-view > p { margin: 0; color: var(--muted); font-size: 12px; }
+.refresh-button { border: 1px solid var(--line); border-radius: 10px; background: white; color: #53615a; font-size: 11px; padding: 10px 14px; }
+.identity-card { display: flex; align-items: center; gap: 16px; background: #fff; border: 1px solid var(--line); border-radius: 15px; padding: 16px; box-shadow: 0 8px 24px rgba(35,58,46,.05); }
+.avatar { width: 54px; height: 54px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 14px; background: var(--green); color: white; font-size: 21px; font-weight: 800; }
+.identity-card small { color: #8c9791; font-size: 10px; }
+.identity-card h3 { margin: 4px 0; font-size: 19px; }
+.identity-card p { margin: 0; color: #66736c; font-size: 11px; }
+.verified { margin-left: auto; background: var(--mint); color: var(--green); padding: 8px 11px; border-radius: 99px; font-size: 10px; font-weight: 700; }
+.verified.missing { color: #9b6b14; background: #fbf0d7; }
+.field-label { display: block; margin: 22px 0 8px; font-size: 11px; font-weight: 800; }
+.machine-picker { height: 52px; display: flex; align-items: center; gap: 10px; border: 1px solid #cfd8d2; border-radius: 12px; background: white; padding: 0 15px; }
+.machine-picker:focus-within { border-color: var(--green); box-shadow: 0 0 0 3px rgba(0,127,95,.08); }
+.machine-picker input { flex: 1; border: 0; outline: 0; background: transparent; font-size: 13px; }
+.machine-picker b { color: var(--green); }
+.suggestions { margin-top: 6px; border: 1px solid var(--line); border-radius: 12px; background: white; padding: 5px; box-shadow: 0 15px 40px rgba(32,55,44,.1); }
+.suggestions button { width: 100%; display: flex; align-items: center; gap: 10px; border: 0; border-radius: 8px; background: transparent; padding: 10px; text-align: left; font-size: 12px; }
+.suggestions button:hover { background: #eef7f2; color: var(--green); }
+.suggestions button small { margin-left: auto; color: #95a099; }
+.suggestions p { text-align: center; color: #7f8b84; font-size: 11px; }
+.full-primary { width: 100%; margin-top: 22px; border: 0; border-radius: 12px; background: var(--green); color: white; padding: 15px 18px; font-size: 13px; font-weight: 800; box-shadow: 0 10px 25px rgba(0,127,95,.18); }
+.full-primary span { float: right; }
+.notice { margin-top: 12px; padding: 10px 12px; border-radius: 8px; background: #f7edd8; color: #8b671e; font-size: 10px; }
+.notice.compact { margin: 10px 0 -10px; }
+
+.weigh-view { padding: 22px 32px 28px; }
+.weigh-meta { display: flex; gap: 0; border: 1px solid var(--line); background: white; border-radius: 11px; padding: 10px 14px; margin-bottom: 14px; }
+.weigh-meta > span { min-width: 210px; padding-right: 20px; margin-right: 20px; border-right: 1px solid var(--line); }
+.weigh-meta small, .weigh-meta b { display: block; }
+.weigh-meta small { color: #8a958f; font-size: 9px; margin-bottom: 4px; }
+.weigh-meta b { font-size: 11px; }
+.weigh-meta button { margin-left: auto; border: 0; background: none; color: var(--green); font-size: 10px; font-weight: 800; }
+.scale-display { border-radius: 18px; background: #112b23; color: white; padding: 17px 24px 15px; box-shadow: inset 0 1px rgba(255,255,255,.08), 0 16px 30px rgba(16,42,33,.17); }
+.display-top { display: flex; justify-content: space-between; align-items: center; }
+.stable-badge { color: #e2c680; font-size: 10px; font-weight: 700; }
+.stable-badge i { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: #e4b64e; box-shadow: 0 0 0 4px rgba(228,182,78,.13); }
+.stable-badge.ready { color: #83dfb8; }
+.stable-badge.ready i { background: #48c78e; box-shadow: 0 0 0 4px rgba(72,199,142,.13); }
+.unit-switch { display: flex; background: rgba(255,255,255,.07); border-radius: 8px; padding: 3px; }
+.unit-switch button { border: 0; border-radius: 6px; background: transparent; color: #849b91; font-size: 9px; padding: 5px 9px; }
+.unit-switch button.active { background: #e8f0ea; color: #15352a; font-weight: 800; }
+.weight-number { display: flex; justify-content: center; align-items: baseline; gap: 13px; margin: 2px 0; }
+.weight-number span { font-family: "Courier New", monospace; font-size: clamp(58px, 8vw, 82px); letter-spacing: -.08em; font-weight: 700; }
+.weight-number b { color: #8da298; font-size: 14px; }
+.stability-track { height: 3px; background: rgba(255,255,255,.08); border-radius: 4px; overflow: hidden; }
+.stability-track span { display: block; height: 100%; background: #4bd19a; transition: width .25s; }
+.display-details { display: flex; justify-content: center; gap: 42px; margin-top: 12px; color: #789187; font-size: 9px; }
+.display-details b { color: #dbe8e1; margin-left: 5px; }
+.scale-tools { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 11px 0 16px; }
+.scale-tools button { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 10px; background: white; padding: 10px 13px; color: var(--green); text-align: left; font-size: 18px; }
+.scale-tools button:hover { border-color: #a8cabb; }
+.scale-tools span, .scale-tools b, .scale-tools small { display: block; }
+.scale-tools b { color: var(--ink); font-size: 11px; }
+.scale-tools small { color: #909a94; font-size: 8px; margin-top: 3px; }
+.material-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 9px; }
+.material-heading span, .material-heading b, .material-heading small { display: block; }
+.material-heading b { font-size: 12px; }
+.material-heading small { color: #8b9690; font-size: 9px; margin-top: 3px; }
+.material-heading em { color: #a16e15; background: #f8eed7; font-style: normal; font-size: 8px; padding: 4px 7px; border-radius: 99px; }
+.material-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
+.material-card { min-width: 0; display: flex; align-items: center; gap: 10px; position: relative; border: 1px solid var(--line); border-radius: 11px; background: white; padding: 12px 10px; text-align: left; }
+.material-card:hover { transform: translateY(-1px); }
+.material-card.selected { border: 2px solid var(--green); background: #f3faf7; padding: 11px 9px; }
+.material-icon { width: 33px; height: 33px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 9px; font-size: 12px; font-weight: 900; background: #edf1ed; color: #536259; }
+.material-card.copper .material-icon { background: #f3e2d6; color: #a65e2e; }
+.material-card.wire .material-icon { background: #f3ead2; color: #b27714; }
+.material-card.aluminum .material-icon { background: #e5ecee; color: #60747c; }
+.material-card.tin .material-icon { background: #e5e6ed; color: #62687c; }
+.material-card b, .material-card small { display: block; white-space: nowrap; }
+.material-card b { font-size: 11px; }
+.material-card small { margin-top: 4px; color: #9aa39e; font-size: 6px; }
+.material-card i { margin-left: auto; font-size: 10px; color: var(--green); font-style: normal; }
+.full-primary.upload { margin-top: 18px; }
+
+.result-view { width: min(520px, calc(100% - 48px)); margin: auto; padding: 28px 0; text-align: center; }
+.success-ring { width: 66px; height: 66px; display: grid; place-items: center; margin: 0 auto 13px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 8px rgba(223,245,237,.55); }
+.success-ring span { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--green); color: white; font-size: 19px; }
+.receipt { margin-top: 20px; border: 1px solid var(--line); border-radius: 15px; background: white; box-shadow: 0 15px 40px rgba(26,50,38,.08); overflow: hidden; text-align: left; }
+.receipt-head { display: flex; justify-content: space-between; padding: 12px 18px; border-bottom: 1px dashed #d9e0db; font-size: 10px; font-weight: 800; }
+.receipt-head small { color: #8c9691; font-weight: 400; }
+.receipt-weight { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; background: #f2f8f5; }
+.receipt-weight small, .receipt-weight b { display: block; }
+.receipt-weight small { color: var(--green); font-size: 10px; font-weight: 800; }
+.receipt-weight b { font-family: "Courier New", monospace; font-size: 28px; margin-top: 4px; }
+.receipt-weight em { font-family: Arial, sans-serif; font-size: 10px; font-style: normal; color: #7d8a83; }
+.receipt-weight > i { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 11px; background: white; color: var(--green); font-style: normal; font-weight: 900; box-shadow: 0 4px 15px rgba(0,0,0,.05); }
+.receipt dl { padding: 5px 20px 10px; margin: 0; }
+.receipt dl div { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid #edf0ee; font-size: 10px; }
+.receipt dl div:last-child { border: 0; }
+.receipt dt { color: #859189; }
+.receipt dd { margin: 0; font-weight: 800; }
+.upload-ok { color: var(--green); }
+.result-view .full-primary { margin-top: 15px; }
+.countdown { position: relative; margin-top: 10px; color: #8b9690; font-size: 9px; overflow: hidden; }
+.countdown span { position: absolute; left: 0; bottom: -4px; height: 2px; background: var(--green); transition: width 1s linear; }
+
+.settings-card { background: white; border: 1px solid var(--line); border-radius: 15px; padding: 8px 18px; }
+.settings-card label { display: grid; grid-template-columns: 160px 1fr; align-items: center; gap: 18px; padding: 13px 0; border-bottom: 1px solid var(--line); }
+.settings-card label:last-child { border: 0; }
+.settings-card label > span { font-size: 11px; font-weight: 800; }
+.settings-card label small { display: block; color: #ac8154; font-size: 8px; margin-top: 4px; font-weight: 400; }
+.settings-card input { width: 100%; border: 1px solid #d8dfda; border-radius: 8px; background: #fafbf9; padding: 10px 12px; outline: 0; font-size: 10px; }
+.settings-card input:focus { border-color: var(--green); }
+.setting-hint { margin-top: 12px; background: #edf5f1; border-radius: 9px; padding: 10px 12px; color: #5f7369; font-size: 9px; }
+
+.modal-backdrop { position: fixed; inset: 0; z-index: 10; display: grid; place-items: center; background: rgba(13,31,24,.58); backdrop-filter: blur(5px); padding: 20px; }
+.modal { width: min(390px, 100%); position: relative; background: #fff; border-radius: 20px; padding: 30px; text-align: center; box-shadow: 0 30px 80px rgba(0,0,0,.28); }
+.modal-close { position: absolute; right: 14px; top: 11px; border: 0; background: none; color: #89938e; font-size: 24px; }
+.modal-icon { width: 48px; height: 48px; display: grid; place-items: center; margin: 0 auto 12px; border-radius: 13px; background: var(--mint); color: var(--green); font-size: 22px; }
+.modal h2 { margin: 0 0 6px; font-size: 23px; }
+.modal p { color: #87928c; font-size: 11px; }
+.modal > input { width: 100%; margin-top: 12px; border: 1px solid #cfd8d2; border-radius: 11px; padding: 13px; text-align: center; font-size: 22px; letter-spacing: .45em; outline: 0; }
+.modal > input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(0,127,95,.08); }
+.password-error { display: block; color: #b44b3e; margin-top: 8px; font-size: 9px; }
+
+@media (max-width: 760px) {
+  .app-shell { padding: 0; display: block; }
+  .device-frame { min-height: 100vh; border-radius: 0; }
+  .app-header { padding: 0 18px; }
+  .status-pill { font-size: 0; padding: 9px; }
+  .progress-strip { gap: 12px; padding-inline: 12px; }
+  .progress-item { font-size: 9px; gap: 4px; }
+  .home-view { padding: 52px 24px 34px; background-image: none; }
+  .home-view::after, .home-view::before { display: none; }
+  h1 { font-size: 48px; }
+  .primary-cta { min-width: 0; width: 100%; }
+  .home-stats { gap: 15px; justify-content: space-between; }
+  .panel-view { width: calc(100% - 32px); padding: 27px 0; }
+  .section-heading { display: block; }
+  .refresh-button { margin-top: 15px; }
+  .weigh-view { padding: 16px; }
+  .weigh-meta > span { min-width: 0; flex: 1; }
+  .weight-number span { font-size: 54px; }
+  .display-details { gap: 15px; }
+  .scale-tools button { justify-content: center; padding: 10px 5px; }
+  .scale-tools button > span { display: none; }
+  .material-grid { grid-template-columns: repeat(2, 1fr); }
+  .settings-card label { grid-template-columns: 1fr; gap: 7px; }
+  footer { padding: 0 16px; }
+}
@@ -0,0 +1,42 @@
+import type { Metadata } from "next";
+import { headers } from "next/headers";
+import "./globals.css";
+
+export async function generateMetadata(): Promise<Metadata> {
+  const headerStore = await headers();
+  const host = headerStore.get("x-forwarded-host") ?? headerStore.get("host") ?? "localhost:3000";
+  const protocol = headerStore.get("x-forwarded-proto") ?? (host.startsWith("localhost") ? "http" : "https");
+  const origin = `${protocol}://${host}`;
+
+  return {
+    title: "智能称重终端｜沃尔核材",
+    description: "面向生产现场的废料智能称重、稳定采样与数据追溯应用。",
+    icons: {
+      icon: "/favicon.svg",
+      shortcut: "/favicon.svg",
+    },
+    openGraph: {
+      title: "智能称重终端",
+      description: "稳定采样 · 精准记录 · 数据可追溯",
+      images: [{ url: `${origin}/og.png`, width: 1536, height: 864, alt: "智能称重终端" }],
+    },
+    twitter: {
+      card: "summary_large_image",
+      title: "智能称重终端",
+      description: "稳定采样 · 精准记录 · 数据可追溯",
+      images: [`${origin}/og.png`],
+    },
+  };
+}
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html lang="zh-CN">
+      <body>{children}</body>
+    </html>
+  );
+}
@@ -0,0 +1,431 @@
+"use client";
+
+import { useEffect, useMemo, useRef, useState } from "react";
+
+type Step = "home" | "identity" | "weigh" | "result" | "settings";
+type Unit = "kg" | "g" | "lb";
+type Material = {
+  id: string;
+  name: string;
+  tone: string;
+  icon: string;
+};
+
+const materials: Material[] = [
+  { id: "SCRAP_CU_01", name: "废铜", tone: "copper", icon: "Cu" },
+  { id: "SCRAP_WIRE_02", name: "废电线", tone: "wire", icon: "⚡" },
+  { id: "SCRAP_AL_03", name: "废铝", tone: "aluminum", icon: "Al" },
+  { id: "SCRAP_SN_04", name: "废锡", tone: "tin", icon: "Sn" },
+];
+
+const machines = ["A01 绕线机", "A02 押出机", "B03 裁线机", "B06 编织机", "C12 包装机"];
+
+const unitFactors: Record<Unit, number> = { kg: 1, g: 1000, lb: 2.20462262 };
+
+function formatWeight(valueKg: number, unit: Unit) {
+  const value = Math.max(0, valueKg) * unitFactors[unit];
+  const digits = unit === "g" ? 0 : 3;
+  return value.toFixed(digits);
+}
+
+export default function Home() {
+  const [step, setStep] = useState<Step>("home");
+  const [employee, setEmployee] = useState({ name: "", id: "" });
+  const [machineQuery, setMachineQuery] = useState("");
+  const [machine, setMachine] = useState("");
+  const [loading, setLoading] = useState(false);
+  const [notice, setNotice] = useState("");
+  const [unit, setUnit] = useState<Unit>("kg");
+  const [rawWeight, setRawWeight] = useState(0);
+  const [zeroOffset, setZeroOffset] = useState(0);
+  const [tare, setTare] = useState(0);
+  const [totalKg, setTotalKg] = useState(0);
+  const [material, setMaterial] = useState<Material>(materials[0]);
+  const [stable, setStable] = useState(false);
+  const [stableProgress, setStableProgress] = useState(0);
+  const [countdown, setCountdown] = useState(10);
+  const [passwordOpen, setPasswordOpen] = useState(false);
+  const [password, setPassword] = useState("");
+  const [passwordError, setPasswordError] = useState("");
+  const [apiSettings, setApiSettings] = useState({
+    employee: "",
+    machines: "",
+    weight: "",
+    upload: "",
+  });
+  const stableSamples = useRef<number[]>([]);
+
+  const netWeight = Math.max(0, rawWeight - zeroOffset - tare);
+  const displayedWeight = totalKg + netWeight;
+
+  const filteredMachines = useMemo(
+    () =>
+      machines.filter((item) =>
+        item.toLowerCase().includes(machineQuery.trim().toLowerCase()),
+      ),
+    [machineQuery],
+  );
+
+  useEffect(() => {
+    if (step !== "weigh") return;
+    const start = Date.now();
+    const timer = window.setInterval(() => {
+      const elapsed = (Date.now() - start) / 1000;
+      const target = elapsed < 1.4 ? 0 : 2.486;
+      const movement = elapsed < 3 ? Math.sin(elapsed * 9) * 0.085 : Math.sin(elapsed * 3) * 0.0012;
+      setRawWeight(Math.max(0, target + movement));
+    }, 180);
+    return () => window.clearInterval(timer);
+  }, [step]);
+
+  useEffect(() => {
+    if (step !== "weigh") return;
+    stableSamples.current = [...stableSamples.current.slice(-7), netWeight];
+    const samples = stableSamples.current;
+    if (samples.length < 6 || netWeight < 0.01) {
+      setStable(false);
+      setStableProgress(Math.min(85, samples.length * 14));
+      return;
+    }
+    const spread = Math.max(...samples) - Math.min(...samples);
+    const isStable = spread < 0.008;
+    setStable(isStable);
+    setStableProgress(isStable ? 100 : Math.max(25, 90 - spread * 500));
+  }, [netWeight, step]);
+
+  useEffect(() => {
+    if (step !== "result") return;
+    setCountdown(10);
+    const timer = window.setInterval(() => {
+      setCountdown((value) => {
+        if (value <= 1) {
+          window.clearInterval(timer);
+          resetToHome();
+          return 0;
+        }
+        return value - 1;
+      });
+    }, 1000);
+    return () => window.clearInterval(timer);
+  }, [step]);
+
+  function resetToHome() {
+    setStep("home");
+    setMachine("");
+    setMachineQuery("");
+    setTotalKg(0);
+    setRawWeight(0);
+    setZeroOffset(0);
+    setTare(0);
+    setStable(false);
+    stableSamples.current = [];
+  }
+
+  async function fetchIdentity() {
+    setLoading(true);
+    setNotice("");
+    try {
+      if (apiSettings.employee) {
+        const response = await fetch(apiSettings.employee);
+        if (!response.ok) throw new Error("接口不可用");
+        const data = await response.json();
+        setEmployee({ name: data.name, id: data.employeeId });
+      } else {
+        await new Promise((resolve) => window.setTimeout(resolve, 650));
+        setEmployee({ name: "张伟", id: "E-0826" });
+        setNotice("当前使用模拟数据，接口接入后将自动切换");
+      }
+      setStep("identity");
+    } catch {
+      setNotice("暂时无法连接本地服务器，请点击“重新获取”");
+      setStep("identity");
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  function enterAdmin() {
+    if (password === "888888") {
+      setPasswordOpen(false);
+      setPassword("");
+      setPasswordError("");
+      setStep("settings");
+    } else {
+      setPasswordError("密码不正确，演示密码为 888888");
+    }
+  }
+
+  async function submitWeight() {
+    if (!stable) {
+      setNotice("请等待重量稳定后再保存");
+      return;
+    }
+    setLoading(true);
+    setNotice("");
+    const payload = {
+      employeeName: employee.name,
+      employeeId: employee.id,
+      machineId: machine,
+      materialType: material.name,
+      materialTypeId: material.id,
+      weightKg: Number(displayedWeight.toFixed(3)),
+      createdAt: new Date().toISOString(),
+    };
+    try {
+      if (apiSettings.upload) {
+        const response = await fetch(apiSettings.upload, {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify(payload),
+        });
+        if (!response.ok) throw new Error("上传失败");
+      } else {
+        await new Promise((resolve) => window.setTimeout(resolve, 700));
+      }
+      setStep("result");
+    } catch {
+      setNotice("数据上传失败，请检查服务器连接后重试");
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  function addToTotal() {
+    if (!stable || netWeight <= 0) {
+      setNotice("重量稳定后才能累计");
+      return;
+    }
+    setTotalKg((value) => value + netWeight);
+    setZeroOffset(rawWeight);
+    setTare(0);
+    stableSamples.current = [];
+    setNotice(`已累计 ${formatWeight(netWeight, unit)} ${unit}，可继续放置下一批`);
+  }
+
+  return (
+    <main className="app-shell">
+      <div className="ambient ambient-one" />
+      <div className="ambient ambient-two" />
+
+      <section className="device-frame">
+        <header className="app-header">
+          <button className="brand" onClick={resetToHome} aria-label="返回首页">
+            <span className="brand-mark">W</span>
+            <span>
+              <strong>智能称重终端</strong>
+              <small>WOTE · SMART SCALE</small>
+            </span>
+          </button>
+          <div className="status-pill">
+            <span className="status-dot" />
+            设备在线
+          </div>
+        </header>
+
+        {step !== "home" && step !== "settings" && (
+          <div className="progress-strip" aria-label="流程进度">
+            {["人员确认", "智能称重", "结果上传"].map((label, index) => {
+              const activeIndex = step === "identity" ? 0 : step === "weigh" ? 1 : 2;
+              return (
+                <div className={index <= activeIndex ? "progress-item active" : "progress-item"} key={label}>
+                  <span>{index < activeIndex ? "✓" : index + 1}</span>
+                  {label}
+                </div>
+              );
+            })}
+          </div>
+        )}
+
+        <div className="content">
+          {step === "home" && (
+            <div className="home-view">
+              <div className="eyebrow"><span /> 安全 · 精准 · 可追溯</div>
+              <h1>废料称重，<br /><em>简单一点。</em></h1>
+              <p>自动识别员工信息，稳定采样并上传记录。<br />请确认秤台处于空载状态后开始。</p>
+              <button className="primary-cta" onClick={fetchIdentity} disabled={loading}>
+                <span className="cta-icon">↗</span>
+                <span><strong>{loading ? "正在连接…" : "开始称重"}</strong><small>读取门禁人员信息</small></span>
+                <b>→</b>
+              </button>
+              <button className="admin-link" onClick={() => setPasswordOpen(true)}>⚙ 管理员登录</button>
+              <div className="home-stats">
+                <span><b>0.001 kg</b>显示精度</span>
+                <span><b>连续采样</b>稳定判断</span>
+                <span><b>4 种</b>废料分类</span>
+              </div>
+            </div>
+          )}
+
+          {step === "identity" && (
+            <div className="panel-view identity-view">
+              <div className="section-heading">
+                <div>
+                  <span className="step-kicker">01 · 人员与机台</span>
+                  <h2>确认本次称重信息</h2>
+                  <p>人员信息由门禁机自动获取，请选择对应生产机台。</p>
+                </div>
+                <button className="refresh-button" onClick={fetchIdentity} disabled={loading}>↻ 重新获取</button>
+              </div>
+              <div className="identity-card">
+                <div className="avatar">{employee.name ? employee.name.slice(-1) : "?"}</div>
+                <div><small>当前操作员工</small><h3>{employee.name || "未获取"}</h3><p>工号 · {employee.id || "—"}</p></div>
+                <span className={employee.name ? "verified" : "verified missing"}>{employee.name ? "✓ 已验证" : "! 待获取"}</span>
+              </div>
+              <label className="field-label" htmlFor="machine">生产机台号</label>
+              <div className="machine-picker">
+                <span>⌕</span>
+                <input
+                  id="machine"
+                  value={machineQuery}
+                  onChange={(event) => {
+                    setMachineQuery(event.target.value);
+                    setMachine("");
+                  }}
+                  placeholder="输入机台号或名称，如 A01"
+                  autoComplete="off"
+                />
+                {machine && <b>✓</b>}
+              </div>
+              {machineQuery && !machine && (
+                <div className="suggestions">
+                  {filteredMachines.length ? filteredMachines.map((item) => (
+                    <button key={item} onClick={() => { setMachine(item); setMachineQuery(item); }}>
+                      <span>▣</span>{item}<small>选择</small>
+                    </button>
+                  )) : <p>没有匹配机台，可点击“重新获取”同步最新数据</p>}
+                </div>
+              )}
+              <button
+                className="full-primary"
+                disabled={!employee.name || !machine}
+                onClick={() => { setNotice(""); setStep("weigh"); }}
+              >
+                确认并进入称重 <span>→</span>
+              </button>
+              {notice && <div className="notice">ⓘ {notice}</div>}
+            </div>
+          )}
+
+          {step === "weigh" && (
+            <div className="weigh-view">
+              <div className="weigh-meta">
+                <span><small>员工</small><b>{employee.name} · {employee.id}</b></span>
+                <span><small>机台</small><b>{machine}</b></span>
+                <button onClick={() => setStep("identity")}>修改</button>
+              </div>
+
+              <div className="scale-display">
+                <div className="display-top">
+                  <span className={stable ? "stable-badge ready" : "stable-badge"}>
+                    <i /> {stable ? "重量已稳定" : "正在稳定采样"}
+                  </span>
+                  <div className="unit-switch">
+                    {(["kg", "g", "lb"] as Unit[]).map((item) => (
+                      <button className={unit === item ? "active" : ""} onClick={() => setUnit(item)} key={item}>{item}</button>
+                    ))}
+                  </div>
+                </div>
+                <div className="weight-number">
+                  <span>{formatWeight(displayedWeight, unit)}</span><b>{unit}</b>
+                </div>
+                <div className="stability-track"><span style={{ width: `${stableProgress}%` }} /></div>
+                <div className="display-details">
+                  <span>净重 <b>{formatWeight(netWeight, unit)} {unit}</b></span>
+                  <span>累计 <b>{formatWeight(totalKg, unit)} {unit}</b></span>
+                  <span>皮重 <b>{formatWeight(tare, unit)} {unit}</b></span>
+                </div>
+              </div>
+
+              <div className="scale-tools">
+                <button onClick={() => { setZeroOffset(rawWeight); setTare(0); setTotalKg(0); setNotice("秤台已清零"); }}>⟲<span><b>清零</b><small>消除空秤误差</small></span></button>
+                <button onClick={() => { setTare(Math.max(0, rawWeight - zeroOffset)); setNotice("已去皮，仅显示净重"); }}>▱<span><b>去皮</b><small>扣除容器重量</small></span></button>
+                <button onClick={addToTotal}>＋<span><b>累计</b><small>加入当前重量</small></span></button>
+              </div>
+
+              <div className="material-heading"><span><b>选择废料类型</b><small>点击分类后保存称重记录</small></span><em>必选</em></div>
+              <div className="material-grid">
+                {materials.map((item) => (
+                  <button
+                    key={item.id}
+                    className={`material-card ${item.tone} ${material.id === item.id ? "selected" : ""}`}
+                    onClick={() => setMaterial(item)}
+                  >
+                    <span className="material-icon">{item.icon}</span>
+                    <span><b>{item.name}</b><small>TYPE ID · {item.id}</small></span>
+                    <i>{material.id === item.id ? "✓" : "→"}</i>
+                  </button>
+                ))}
+              </div>
+              {notice && <div className="notice compact">ⓘ {notice}</div>}
+              <button className="full-primary upload" disabled={!stable || loading} onClick={submitWeight}>
+                {loading ? "正在上传…" : stable ? `保存 ${material.name} 称重数据` : "请等待重量稳定"} <span>→</span>
+              </button>
+            </div>
+          )}
+
+          {step === "result" && (
+            <div className="result-view">
+              <div className="success-ring"><span>✓</span></div>
+              <span className="step-kicker">称重完成</span>
+              <h2>数据已保存</h2>
+              <p>本次称重记录已进入上传队列</p>
+              <div className="receipt">
+                <div className="receipt-head"><span>称重凭证</span><small>{new Date().toLocaleString("zh-CN", { hour12: false })}</small></div>
+                <div className="receipt-weight">
+                  <span><small>{material.name}</small><b>{formatWeight(displayedWeight, unit)} <em>{unit}</em></b></span>
+                  <i>{material.icon}</i>
+                </div>
+                <dl>
+                  <div><dt>员工姓名</dt><dd>{employee.name}</dd></div>
+                  <div><dt>员工工号</dt><dd>{employee.id}</dd></div>
+                  <div><dt>生产机台</dt><dd>{machine}</dd></div>
+                  <div><dt>废料类型 ID</dt><dd>{material.id}</dd></div>
+                  <div><dt>上传状态</dt><dd className="upload-ok">● 已保存</dd></div>
+                </dl>
+              </div>
+              <button className="full-primary" onClick={resetToHome}>返回首页 <span>→</span></button>
+              <div className="countdown"><span style={{ width: `${countdown * 10}%` }} />{countdown} 秒后自动返回首页</div>
+            </div>
+          )}
+
+          {step === "settings" && (
+            <div className="panel-view settings-view">
+              <div className="section-heading">
+                <div><span className="step-kicker">管理员中心</span><h2>接口与设备设置</h2><p>接口开发完成后，在此填入本地服务器地址。</p></div>
+                <button className="refresh-button" onClick={resetToHome}>退出管理</button>
+              </div>
+              <div className="settings-card">
+                {[
+                  ["employee", "人员信息接口", "例如 http://192.168.1.20/api/employee"],
+                  ["machines", "机台列表接口", "例如 http://192.168.1.20/api/machines"],
+                  ["weight", "电子秤数据接口", "例如 ws://192.168.1.21/weight"],
+                  ["upload", "称重上传接口", "例如 http://192.168.1.20/api/records"],
+                ].map(([key, label, placeholder]) => (
+                  <label key={key}><span>{label}<small>暂未配置</small></span><input value={apiSettings[key as keyof typeof apiSettings]} onChange={(event) => setApiSettings({ ...apiSettings, [key]: event.target.value })} placeholder={placeholder} /></label>
+                ))}
+              </div>
+              <div className="setting-hint">当前为空时，应用会使用内置模拟数据，便于先行演示与验收交互流程。</div>
+              <button className="full-primary" onClick={() => { setNotice("设置已保存在本次会话中"); resetToHome(); }}>保存设置 <span>✓</span></button>
+            </div>
+          )}
+        </div>
+
+        <footer><span>沃尔核材 · 数字化生产</span><span>设备编号 SCALE-01 · v1.0</span></footer>
+      </section>
+
+      {passwordOpen && (
+        <div className="modal-backdrop" onMouseDown={() => setPasswordOpen(false)}>
+          <div className="modal" onMouseDown={(event) => event.stopPropagation()}>
+            <button className="modal-close" onClick={() => setPasswordOpen(false)}>×</button>
+            <span className="modal-icon">⌁</span>
+            <h2>管理员登录</h2>
+            <p>请输入六位管理密码进入设置</p>
+            <input type="password" inputMode="numeric" autoFocus maxLength={6} value={password} onChange={(event) => setPassword(event.target.value.replace(/\D/g, ""))} onKeyDown={(event) => event.key === "Enter" && enterAdmin()} placeholder="••••••" aria-label="管理员密码" />
+            {passwordError && <small className="password-error">{passwordError}</small>}
+            <button className="full-primary" onClick={enterAdmin}>确认登录 <span>→</span></button>
+          </div>
+        </div>
+      )}
+    </main>
+  );
+}